UPDATE:1 year and still cranks within the first 2-3 pulls. Probably will buy another when this one finally does bite the dust czcams.com/users/postUgkx43QMbQqu67IZadu9ou8Sg1BdrunMRNqX . No issues at all. Very happy with it.UPDATE: After 6 months of use and over 70 uses I would still highly recommend this pressure washer. It does vibrate a decent amount but never had it “walk” like others have mentioned. No oil leaks, still seems to run like the day I bought it. Still cranks within 2-3 pulls every time. Very happy with my purchase!Have used it about a dozen times now. Plenty of power, cranks up on 1-2 pulls every time. My only complaint would be I wish it was a little taller to make it easier to walk with it (hits my ankles a lot) and that the two hose connections were a little further apart but it hasn’t caused me any issues. Seems to run a good 1-1/2-2 hrs on a full tank, overall a well built machine and definitely worth the money in my opinion.
It's nice to listen to a guy who really understands how these machines work. I've replaced a few pumps, and carburetors in my 34 years as a painter. Thanks for the detailed explanation, great job!!
Thanks for the great video. I volunteer at the St John's tool Library in St John's Newfoundland. Your videos help us repair good but non-working donated equipment. We are non-profit organization operated entirely by volunteers. We can't afford to buy new equipment but we love to recycle. Thank you so much for your help.
You are most welcome. If you have a problem that any of the videos do not address a problem on a machine let me know. I work on many types of machines besides paint sprayers.
Just about to remove the pump, but it wouldn't come off. Then I watched the last part, and saw the part about the set screw! But B4 that, I saw how easy it was to remove the valves, I thought that would be a can of worms, but not so! Found tons or rust in the valve seats, rinsed everything out, and viola, it works! Thanks a bunch, Brian - Where would we be without CZcams.
Best video ever, precise and clear explanations along the video. Easy to keep track of procedures, and process all the way through. Can’t wait for next one.
Found the prob - 3 of those valves were messed from little plastic fragments. I kept it in a storage place that freezes in the winter. Ordering a new set of valves. Thank you!
Thank you Very much 'Brian'' You have a way to 'capture our attention' in the way you explain everything so clearly and is understandable for most anybody who as interest in learning the (abc) of 'pressure washing' machinery... (Like some other 'commentator said' !! YOU (Should/Could) have been a VERY GOOD TEACHER !!! Thanks again, The common 'CZcams' followers are very lucky to have someone like you to show and teach us 'Your knowledge'...👌👍👏
The most informative video I've watched to date on small engine related product , clear , concise and no nonsense, here in Southern Africa we battle to get quality service and repair and top notch knowledge, Very much appreciated.
Great video! Very well explained! I am a DIY guy but new to pressure washers. This video makes me feel comfortable diagnosing and trying to fix a used unit I picked up. Thank you!
I've worked on a lot of things Brian but had no experience at all with pressure washers. So thank you for the very informative video. Excellent camera work and audio quality along with the great explanation. A tough combination to find on CZcams videos! Attaboy!
I viewed this video because I am considering purchasing a used pressure washer. Your in depth analysis gives me an idea of what to look for like milky oil and lower outgoing water pressure than what machine is designed. Thank you for your easy to understand explanations.
Thanks for the video.I have two old pressure washers in the pole barn.Never new exactly what the problem was with them.Probably won't fix them but I am going to tear them apart to just see what the problem is.Thanks.
Nice job on this video! I was always curious how my PW pump worked, now I know. This all started trying to figure out why my pump wasn't drawing soap/chemical solution. Thank you very much.
Thank you, thank you thank you. This was very well explained and broken down so anyone can understand it. I appreciate what you did. Thank you very much.
@@Brian_the_repair_guy what website can i buy new valves ? Mine loses pressure when my water gets hot . I have a detailing company want when the water is hot from the sun it will lose pressure also once’s the tank is half way full . I don’t have a issue if it’s full water tank .
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Thank you, I try to make all my videos to the point. I personally hate watching a video with 10 mins of "why" a video is being made and what spirits guided you on your path.
You mentioned that the pressure washers that are sold at Home Depot or Loews it doesn’t pay to repair,but the thing is it’s actually the unloader valve itself that’s an easy fix.Many people are being sold an entire pump assembly when they only needed to clean and oil the unloader valve.This is when you pull the trigger and kicks off after just 3 seconds.This is a common issue many are having.Thank you for sharing your tips and advice.
This depends entirely on the type of pump. Many of the pumps used on the mass produced pumps used on the Lowes and Home Depot machines are not repairable. Access to certain parts are not available. There is no need to oil the unloader. In fact they are not oiled from the factory. The only lube is on the spring and that is a very light coating of grease. It never needs to be greased again. If by chance the grease is flushed away, you need a new unloader. Many of the unloader are built on to the pumps used on the machines from box stores, which means you buy a new pump.
he makes a lot of good points here but in any case of something not working the way it should, always think simple before you get into complicated repairs. I have the exact same Honda motor and pump (Comet Pump). Suddenly no water was making it to the wand where it quick connects to the pump..so , I undid the quick connect from the pump body and low and behold, a piece of rubber had broken away from one of the seals and was completely blocking the exit hole to the hose coupling . Once I cleared the obstructing, good as new
Thanks for the very prompt and informative video. Just sent my commercial unit in to our shop because of no pressure. Now I know what to look for and diagnose the situation. 👍
Excellent explanation of how the pump works, Now I m sure I know my problem of water in my pump oil. Thanks for a great tutorial and the breakdown to show the insides of the pump and how they work. Big Thumbs up. Any links to pump kits would be great.
THANK YOU SIR!!! This has to be the BEST video I've found so far!!! You gave me a better understanding of what each part's function is along w/ what causes different failures! I've got a General Pump T1011 that lost pressure shortly after I effed up. Shut off motor & water to move washer, then fired it up & idled for a few minutes while I did a few things then wound it up to start washing. Gun was probably 50 ft away & when I pulled trigger got nothing...my dumb ass never turned water valve back on! Anywhooters, got it back on ASAP & it worked fine for a bit but after idling again to move a vehicle it decided it wasn't feeling it any more & said "EFF U DUDE I QUIT"! 😁 I'm not afraid to tear into it but been struggling to find accurate teardowns that match mine exactly...pump & unloader (K5) & until now I hadn't even gotten a thorough video explanation so I could diag it & fix it myself w/ minimal cost. I inherited it from my 90 yr old G'pa last year cuz he decided he was gettin tired & it's a good money maker as long as I'm not starting the season going too far in debt!!! So thanks again for sharing knowledge & explaining HOW components works & not just acting like I know everything you do. If I did I wouldn't be here! Thanks again! YOU TAUGHT ME TO FISH & DIDN'T JUST FEED ME FISH FOR SUPPER! 👍 And YES, I'm bored & can BS forever. Hope you enjoyed my novel...✌ P.S. Subbed & checked you're info & found something cool. You joined March 26th 2010 & that was a BIG day for me...because at 6:15 & 6:16 PM My twin 👶boys👶 joined the world!!! I'll take that as the vibe that led me your way & why I was moved enough to write a novel in response to your video! Leland & Landon by the way...and they're pricy cuz, TWO TIMES TWO TIMES, so fix washer-make the doughnuts-blow money on boys!!!
I am very glad you found this helpful. That is why I do these videos, to help. The General pump is top of the line. Congratulations on the twins, although late. Have a good one and good luck
Great video and very informative. I cannibalized parts from different units. I added a pump from a unit where the motor went bad and added the pump to a Honda motor from another unit where the pump went bad. Now when I let go of the trigger, the unit cuts off immediately. I took the unloader valve out and the piston moves freely. The set nut was spinning freely and not depressed against the larger nut that holds the spring in place. The unit hops and skips more than I recall also. Do you have any suggestions? Thanks in advance for this instructional video.
Hey Brian excellent video, 22:12 , I am really interested to understand and learn - The best combination of Pressure v/s Volume and related nozzle/orifice sizes. kindly help out, let me know if you already have any detailed video on this . Thanks....
Nice video, good technical info, and not overly explained! I have a (discontinued) karcher g4000rh (4000psi 3.4gpm) itʻs leaking oil. what would you recommend as a good replacement pump for it?
@@Brian_the_repair_guy sorry, my question to you was not correct because it is not leaking in that spot. Without motor running and water hose on, it leaks at bottom between the black pump and brass pump that the unloader is attached to. I did take the unloader off as you suggested and the o rings were bad so I replaced them. Your advice was worth while if I can get the leak stopped. I'm assuming I will have to replace the seals as you show in the video to stop the leak. It sprays fine when using. Problem with using it, it might mess up the motor. I took it replacing the seals in the video was to correct a pressure problem. Thanks for your reply and help.
Pretty much gave up after hearing your opinion about pressure washers from Lowes…anyway, at my age I’m just going to rent one each time I need it. Thank you Sir!!
Great video! Two questions. 1. I'm shopping for a 4 GPM 4000 PSI washer. Pump options are AR, Cat, GP, and HP. Which to you recommend for long life and rebuildability? 2. I've read that using pump saver after every use extends the life of the unit. What's your opinion on using light machine oil or something to that effect instead of the product in a can?
I prefer the General pump. Overall I see the longest life, less problems with General pumps. The parts and pump cost a bit more, but I feel it is far better. Long life will come with service, do not allow the pump to freeze, and do not allow the pump to run for more than a couple minutes without water flowing from the gun. When you let the machine run with out pulling the trigger for more than 2 minutes will allow the water to over heat. You do not want that. As far as the oils, use the manufacturers recommended oils.
Old video, looks like a canpump, same one I have. My oil does look milky Lol, about to invest in a good brand pump soon but so far it's still putting in work for me
I have a 4 gpm with a general pump ez4040g pump. The other day I lost pressure. I took the unloader off and it seemed to be sticking. I cleaned it up and oiled it and it seems fine now. Do you think I should order a new unloader or is this a common problem? Thanks
Sudden loss of pressure typically occurs when a piece of small trash get is the system. The Valves and the unloader will both be affected by the smallest foriegn object. Usually the piece will pass. If you have a thermal valve, keep an eye on it. If you begin to see water leaking from the thermal valve, then prepare to replace the unloader.
I just opened a small business with pressure washing. I watch a lot of videos every day in the evening about different things. Most videos are basically all the same. You broke that unloaded valve down to a science. Thanks for your help. I’ve been wondering if I should turn it to get -/+ pressure. But now I no. I also just ordered a pressure gauge, hose swivel , oil cut off & kill switch spark plugs and air filters. I’m gonna order a new pump cause I’ve had the same pump for 8 years. So was wondering if you will do a video on pump replacement. Thanks for taking time out to help people like me.
Very good video thanks! I purchase a power washer on an aution and has milky oil in the pump. The machine is 6hrs old I replaced the oil once used for an hour then the oil was milky gain. I think k need to rebuild the pump. 😐
What a great video, you sure do have a way of explaining how pressure washers work, what kind of pump would you be replacing it with ? Maybe you can do a video installing the new pump and setting up the unloader, again thank you
Hi Brian, I really appreciate the precision in your video. I recently bought my first used pressure washer with a 4200PSI capacity. However, it is leaking from behind the head of the pump. I suspect it might be the O-rings, but I'm not entirely sure. Can you please guide me on how to fix it? Your assistance would be greatly appreciated. Thank you."
Just ran into your channel, thanks for the video, I bought new 4gpm 4400 psi pressure washer that has a built in unloader valve, I just realize that I should get one that I could run a hose to my buffer tank to avoid damaging it when I’m not squeezing the trigger on the gun. What is my best option other than getting different pw to achieve that. Thanks again.
If your unloader is not a bolt on style, then I am not sure how to go about setting it up for the water to flow back to your tank from the unloader as it dumps. You could replace just the pump to the proper pump.
Thanks Brain, it's nice to listen to English & a guy that knows what he's doing & explains all as he goes, damn good job buddy, Bet you're a$$ I'll be following you & probably asking u a few things, can I send you pictures of a pump I'm working on now?
Hey Brian, thank you for the video. I have an older BE Power washer with a 2200psi Honda. I have a significant leak in the pump, before watching the video I took the housing apart and looks like one of the ceramic pistons is damaged. Would that be the source of the leak?
Great video , i have the same pump but the video didn't solve my problem, my pump is spraying water out of the channel under the centre piston does this sound like a blown seal?
If there is water leaking between the head and the crank, you need new packings and seals. Check the plungers to ensure no damage before getting your parts
I’ve got one of those Chinese pumps and although I can see the pushrods working, one of the cylinders doesn’t seem to be pumping and pressure and flow is not what it should be and the lance vibrates in my hand. It is out of warranty but has not done more than five hours work in its life and apparently only very briefly worked as it should, at the very beginning. It doesn’t overheat because it has an electric motor drive with a pressure cut-out that stops the motor as soon as the lance trigger is released. Could one of the valves be the issue?
Typically, vibration at the gun with trigger pull is one or more valves have trash stuck in it. Find my video on the valves and hiw to clean. That should take care of it.
Fantastic video. You translated giberish to basic English. By far the best video on a pump breakdown. I have a question... Honda gx390 with a CAT 66DX40G1. One of my techs called me and said the engine blew a rod or something because there's a hold in the engine and chunks of the engine flew out. No injuries thankfully. I know that low or no oil can usually cause this so I just purchased another gx390 and am currently swapping it out with the blown engine. I decided to clean the shaft, key, and after coming across your video decided to clean a little more. Something I noticed when cleaning the shaft and key slot....pieces of greasy grass were lodged in there so I was able to clear out what I could see. A couple months ago, this pwasher tipped over while a tech was washing a long walkway. He turned it back up right, white smoke everywhere, small grass fire extinguished. Engine would not restart. Took it to the warehouse, changed all the fluids and spark plug and got it up running again. Then the blown engine incident happened. Is it possible that grass got logged into the pump during the tip over? Is this possibly what blew the engine because the dip stick showed some oil on it when I checked it. I can't see well enough inside the hole that got blown open to see if any oil was in there. This is an older model CAT pump and I'm having trouble removing a few of the tork bolts that hold the head in place, they keep stripping so I found it best to Stop. I'm eager to go ahead and install the pump to the new engine BUT am hesitant to do so in case I didn't get all of the grass out. I've used an air compressor to blow air through all openings (water supply, shaft,unloader, etc. Your thoughts about me moving forward without certainty that all of the grass has been removed (assuming that may have lead to the blown engine). Thank you in advance. We have a 9 - 4 story condo project to start in 6 hours (7:30am CST) and believe it or not the 4gpm wheeled units work better than our 10gpm trailer and flatbed units since we are able to just load the 4000/4 into the 60' man lift basket. This is Phase 2 of the project so we've already been through all the "do it this way" methods. Lol. KtPowerWashing.com
I am having a hard ti.e trying to come up with a scenerio that would cause the engine to "blow" based on the pump that is working as it should. Nothing you have pointed out about the pump leads me in that direction. Tipping the machine over while running could definitely lead to this. Depending on length of time on its side, how much oil dumped in the cylinder while it was running and a couple other factors. When you remove the pump, you should be able to spin the shaft on the pump by hand with a bit of force. Do this a few times to see if you can get a fee full rotations with no restrictions. If you can, the pump is most likely not an issue. I feel the tip over is the culprit. As for the grass, if the grass is IN the pump, use a water filter at the inlet. If the grass is on the shaft, no real concerns.
I just got a new to me 3800 psi pressure washer. Can I adjust it down to 3000 PSI to use my flexilla hose with it? Will I still get same gallons per minute?
Washer working then pressure quit, have Annovi REVERBERI rsv3g30 PUMP, no pressure. Took apart to clean /look for debris, flushed with water. Valves very hard to move or remove. (did not take out -options?). Put together still no pressure. Would replace unloader and valves be next step? Removed pump and checked pistons (good). Thanks
You need a pressure gauge on the pump. If you have high pressure without pulling the trigger, but lose pressure on trigger pull, then the unloader could be the issue. If the pressure shows no high pressure then check valves and packings. You need to pull the valves out. If they are hard to pull out, it could be they are damaged.
I have a Mi-t-m 3500. I want to pull the pump off the motor. Keep it indoors this winter. Motor needs tuned up. It doesn't start, not seized up. I will clean carb, and get non ox fuel. Any tricks I need to be aware of removing the pump?
Pull the 4 bolts that hold it to the engine. There may be a set screw through the shaft that locks the keyway. Locate the set screw through the side port on the pump and loosen it. Jiggle wiggle and pry a little to slide the pump off the shaft.
Hi Brian great video I have 3000psi w/ 8GPM Honda Gx690 pressure washer. I need to replace the unloader valve the unloader that's on the pump is a VRT3 however I can't fine one with 3000psi only 4500psi can I use the 4500psi unloader
*I just bought a Mi-T-M 3000 psi 3 gpm pump for my honda gc190 and I was told by someone to add a bypass hose on unloader to help with off trigger over heating. Would you say this is critical for me to do to make the pump last longer? The pump has 2 plugs where the hose would go so looks pretty simple to do, remove the 2 plugs and replace them with two 3/8 barbs and a foot or so of 3/8 hose. Thanks in advance.*
The bypass hose would attach to the unloader of the machine. The 2 plugs you mention are more likely to allow the unloader to be installed on either side of the pump, depending on the design of the machine. If you were to install a hose there, it must be high pressure, but I do not recommend this at all. There would be no added benefit. Due to the function of the unloader, an external hose on the unloader does aid in cooling. Cooling is only a concern when the machine is left to run without pulling the trigger for more than a minute or two. Simple solution to this, if you are going to put the gun down, turn off the machine. If you are not going to pull the trigger in the next 2 minutes, turn off the machine. If you are waiting on the chemicals to work, just pull the trigger momentarily.
Best explanation video ever. I have a similar chinese pump that has no make or model identifiers. Any thoughts on oil for these types of units. Is a decent brand 15-40w ok to use?
Good afternoon Brain. I have a Dewalt 3600 pressure washer that won’t start. I removed the spark plug and when I crank the engine without the plug, it shoot out like have a cup of gas and oil as well. The air filter I feel has lots of oil. Can you please tell me what’s wrong and what should I do. Thank you Sir. From the beautiful tropical Island of Guam.🇬🇺🇺🇸
Can a more powerful pump be added. I have a 3400 de Wal pressure washer and I have thought of what happened if I replaced orinal pump for a more powerful pump.
The size of the pump depends on the size of the engine. If you have a 13HP engine, then yes, you can go to a more powerful pump. Typically you can go up to a 4200 psi pump at a max of 4 gpm. If you have a 13hp engine I would suggest the AR pump model RRV4G40D-F24 or a variation of that pump. It is 4,000 psi at 4 gpm. Very cost effective.
So do I have to take it all apart if there is no water flow at all? I have a fairly new dewalt pressure washer for my pool company and havnt used it in a few months and it was perfectly fine but a job came up and the water won't flow through the pump at all and I could not figure it out
Check the intake to make sure it isn't clogged. Then remove the outlet. With the outlet removed. Turn the water on and it should flow. DO NOT TURN THE ENGINE ON
got a craftman washer 3000 lb pressure and it has no pressure unless i shut the water off and turn on took apart and two valves are bad ordered a set i filled the washer pump with oil and left out side in the shed will freezing weather hurt it now
Brain, I have AR 3G30 Pressure washer pump that has internal bypass that i am converting to external bypass using K1 Unloader. Questoin is i am blocking the port between high and low side on internal unloader and letting external unloader k1 to do the job. as part of this startup valve also wont work because i am blocking internal bypass so it wont releive pressure using internal loader. i assume k1 will bleed usingn bypass while i pull the rope and doesnt care about startup jet... am i safe to assume that?.. 2. since i have external bypass that will throw the water to ground, i dont have to worry about starting the engine with water and dont have to rush back to machine to stop if i dont use. am i correct. 3.. can i start the engine without water with this external bypass setup or i have to have water running
I am not sure what you mean by an "internal bypass". So it is hard to help. Are you referring to a bolt on bypass and you are converting to an external?
Great! presentation great presentation liked the information i have a 1700 psi Ex cell pressure washer model number WGV1721 found the pressure washer in the trash brought it home and it worked fine but had a leaking spray gun, i tighten the spray gun halves and loss total pressure. I adjusted the uploader valve and still the pressure washer did not get built any pressure if you have any advise or any help, i would appreciate it.
Awesome video, very informative,....how can I diagnose an unloaded, so hopefully I have an easy quick least expensive fix to my no pressure situation?....same pump as your video, ive taken unloader apart to the point of removing adjustment knob and pulled stiff spring.....seems intact except for filthy rusty water, but no scale or rust on spring.....was going to just replace entire pump....should I?
Great video, I appreciate your time and knowledge. I have a karcher 3000pro with a 9 hp Honda gx270 engine. For the life of me there is no numbers on the pump. The pump leaks water and oil. The oil is not milky. When I press the wand trigger, It takes a few seconds for the pressure washer to activate. Please advice.
If you have a leak of water and oil both, I would consider replacing the pump itself. The cost of parts would be close to the cost of a pump. Just make sure you check the shaft size on your motor to get the correct pump. An AR pump would be a good choice.
Man brought me a simpson EW404. Says it loses pressure and his company bought a whole new pump motor with a new, i call it a manifold... the brass part with the valves in it, i think you call it the pump, the motor bolts up but the pump is a different pattern. Same number of valves, intake's just in a different place. Is this like a carbeurator on a chinese bike, where it may look a lil different but functions the same just a design difference?
That is a hard question to answer. I won't venture a guess unless I had the parts in hand. If I am understanding, you have a new crank and a new manifold that were purchased separately and the manifold looks to have a different bolt pattern?
Brian, I rented a MiTM CA-2703-HDKB from Home Depot today. I had a pressure gauge from Northern Tool installed right after the regulator and with the trigger depressed the pressure washer stayed at 1900 psi. When I released the trigger pressure climbed to around 2700 psi, dropped down and then climbed and kept resetting every 10-15 seconds. There was no knob on the regulator. I wonder if Home Depot permanently sets the pressure so people don't chew up their houses. Do MiTM pressure washer allow you to run them to the factory spec? Will a 2700 psi industrial pressure washer run at 2700 psi? I've seen repairs on consumer pressure washers where manufacturers over rate their machines. Do the psi ratings for MiTm pressure washers hold true? For what it's worth, 1900 PSI and the 15 degree tip did an amazing job on my formerly green vinyl siding.
The pressure rating for a washer is labeled based on "no flow" pressures. So when the trigger is not pulled, it will hit the pressure labeled. Once you pull the trigger, you have opened the system with a leak if you will. So no matter the tip size, the pressure will always be less than the set pressure. The tip degree and size will allow the pressure to drop. A zero degree tip at 2.5 will give more pressure than a zero at 4.0. The 15 degree will give more than a 45 degree at the same office size. The up and down in pressure when not triggered is normal. That is the pump unloading and recycling the water. I will say for your machine to be running at 1900 psi on a 2700 psi machine seems pretty low. Typically on a 15 degree you would see a pressure of around 2200 psi. But there is always a margin of error
The outlet or the inlet is clogged. Checked the inlet to insure there is no debris. You may need to remove the outlet to look for debris. I believe I have a video. If not let me know and I will put one together. What model pump?
@@Brian_the_repair_guy thank you. I felt more confident to fill it about half way. I measured the amount that I took out and filled it with the same. I was worried that it burned a lot of oil somehow.
UPDATE:1 year and still cranks within the first 2-3 pulls. Probably will buy another when this one finally does bite the dust czcams.com/users/postUgkx43QMbQqu67IZadu9ou8Sg1BdrunMRNqX . No issues at all. Very happy with it.UPDATE: After 6 months of use and over 70 uses I would still highly recommend this pressure washer. It does vibrate a decent amount but never had it “walk” like others have mentioned. No oil leaks, still seems to run like the day I bought it. Still cranks within 2-3 pulls every time. Very happy with my purchase!Have used it about a dozen times now. Plenty of power, cranks up on 1-2 pulls every time. My only complaint would be I wish it was a little taller to make it easier to walk with it (hits my ankles a lot) and that the two hose connections were a little further apart but it hasn’t caused me any issues. Seems to run a good 1-1/2-2 hrs on a full tank, overall a well built machine and definitely worth the money in my opinion.
Glad you like it
It's nice to listen to a guy who really understands how these machines work. I've replaced a few pumps, and carburetors in my 34 years as a painter. Thanks for the detailed explanation, great job!!
I am just a well trained monkey, but thank you
What a great video. Everyone who owns a pressure washer and isn’t rich should be required to watch this. Excellent job. Very good.
The guy recommended to replace the pump!
Thanks for the great video. I volunteer at the St John's tool Library in St John's Newfoundland. Your videos help us repair good but non-working donated equipment. We are non-profit organization operated entirely by volunteers. We can't afford to buy new equipment but we love to recycle. Thank you so much for your help.
You are most welcome. If you have a problem that any of the videos do not address a problem on a machine let me know. I work on many types of machines besides paint sprayers.
Just about to remove the pump, but it wouldn't come off. Then I watched the last part, and saw the part about the set screw! But B4 that, I saw how easy it was to remove the valves, I thought that would be a can of worms, but not so! Found tons or rust in the valve seats, rinsed everything out, and viola, it works! Thanks a bunch, Brian - Where would we be without CZcams.
@@billcoleman8854 I very glad to help
Best video ever, precise and clear explanations along the video. Easy to keep track of procedures, and process all the way through. Can’t wait for next one.
Thanks man this is the absolute best video I've seen on pressure washer pumps ,unloader valves, when to repair, what to look for. really appreciate it
Glad it helped
Found the prob - 3 of those valves were messed from little plastic fragments. I kept it in a storage place that freezes in the winter. Ordering a new set of valves. Thank you!
There’s no one on the internet like you Bryan, so much knowledge, experience and willingness to share and teach. Thank you!!
I am glad that you are happy.
@@Brian_the_repair_guy
@@Brian_the_repair_guy
Thanks, you answered several of my questions. This is how videos should be made. Clear & concise.
Glad it was helpful!
Thank you Very much 'Brian'' You have a way to 'capture our attention' in the way you explain everything so clearly and is understandable for most anybody who as interest in learning the (abc) of 'pressure washing' machinery...
(Like some other 'commentator said' !! YOU (Should/Could) have been a VERY GOOD TEACHER !!!
Thanks again, The common 'CZcams' followers are very lucky to have someone like you to show and teach us 'Your knowledge'...👌👍👏
I am just trying to help. Thank you
#1 Pressure Washer Repair video on CZcams. Thank you!!!
I am glad you like it. If you have a request for a video, let me know. Be sure to subscribe for new videos.
The most informative video I've watched to date on small engine related product , clear , concise and no nonsense, here in Southern Africa we battle to get quality service and repair and top notch knowledge, Very much appreciated.
I am glad you liked it
Great video! Very well explained! I am a DIY guy but new to pressure washers. This video makes me feel comfortable diagnosing and trying to fix a used unit I picked up. Thank you!
I am glad you found this helpful
I've worked on a lot of things Brian but had no experience at all with pressure washers.
So thank you for the very informative video.
Excellent camera work and audio quality along with the great explanation. A tough combination to find on CZcams videos! Attaboy!
Thank you, I am glad it helps
I viewed this video because I am considering purchasing a used pressure washer. Your in depth analysis gives me an idea of what to look for like milky oil and lower outgoing water pressure than what machine is designed. Thank you for your easy to understand explanations.
I am glad it helps.
Just wanted to say I appreciate your video. I picked up a used electric unit and used this video to help diagnose it.
I am glad you found it helpful.
You should have been a teacher this is the most informative video on CZcams
Thank you and I hope you find it helpful
Thanks for the video.I have two old pressure washers in the pole barn.Never new exactly what the problem was with them.Probably won't fix them but I am going to tear them apart to just see what the problem is.Thanks.
I know im getting old when stuff like this have me entertained.. i feel like a pro now working on my machine thanks
I know the feeling
Nice job on this video! I was always curious how my PW pump worked, now I know.
This all started trying to figure out why my pump wasn't drawing soap/chemical solution. Thank you very much.
I am glad you liked it.
Thank you, thank you thank you. This was very well explained and broken down so anyone can understand it. I appreciate what you did. Thank you very much.
Very glad to help
Thanks so much for the engine piston, crank, intake etc, anology. Great vid!
Hope it was helpful
@@Brian_the_repair_guy what website can i buy new valves ? Mine loses pressure when my water gets hot . I have a detailing company want when the water is hot from the sun it will lose pressure also once’s the tank is half way full . I don’t have a issue if it’s full water tank .
@@josecollazos6 if you know the model of your pump you can go to watercannon.com they have a huge supply of pump parts.
@@Brian_the_repair_guy thank you . From what i told you what do you think can be wrong with mine maybe any idea
@@josecollazos6 Still need help?
Excellent. You are a born teacher and accomplished technician. Thank you.
Thank you
Great video! I feel more comfortable tackling a future pump project after seeing your video. Thank you for sharing your knowledge!
I hope it helps and thank you
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This is my kind of video.
Straight forward, zero bullshit.
Thank you!
Thank you, I try to make all my videos to the point. I personally hate watching a video with 10 mins of "why" a video is being made and what spirits guided you on your path.
Best information and most useful I have heard after watching 5 other videos before it. THANK YOU!!!!
I am glad to help
You mentioned that the pressure washers that are sold at Home Depot or Loews it doesn’t pay to repair,but the thing is it’s actually the unloader valve itself that’s an easy fix.Many people are being sold an entire pump assembly when they only needed to clean and oil the unloader valve.This is when you pull the trigger and kicks off after just 3 seconds.This is a common issue many are having.Thank you for sharing your tips and advice.
This depends entirely on the type of pump. Many of the pumps used on the mass produced pumps used on the Lowes and Home Depot machines are not repairable. Access to certain parts are not available. There is no need to oil the unloader. In fact they are not oiled from the factory. The only lube is on the spring and that is a very light coating of grease. It never needs to be greased again. If by chance the grease is flushed away, you need a new unloader. Many of the unloader are built on to the pumps used on the machines from box stores, which means you buy a new pump.
he makes a lot of good points here but in any case of something not working the way it should, always think simple before you get into complicated repairs. I have the exact same Honda motor and pump (Comet Pump). Suddenly no water was making it to the wand where it quick connects to the pump..so , I undid the quick connect from the pump body and low and behold, a piece of rubber had broken away from one of the seals and was completely blocking the exit hole to the hose coupling . Once I cleared the obstructing, good as new
Good as new..... Except for a missing chunk of a seal. Wouldn't it be wise to identify and, if feasible, replace the offending seal?
@@mechantics done and done
Accurate and helpful information.👍
We stock a full line of spare parts for this model pump - model 1506.5A
Great 👍
Thanks for the very prompt and informative video. Just sent my commercial unit in to our shop because of no pressure. Now I know what to look for and diagnose the situation. 👍
Excellent explanation of how the pump works, Now I m sure I know my problem of water in my pump oil. Thanks for a great tutorial and the breakdown to show the insides of the pump and how they work. Big Thumbs up. Any links to pump kits would be great.
Glad to help. Watercannon.com is a good start on parts
Great video. Best explanation of parts and functions for the pump.
What you said, EXACTLY!
@@ThomasBarone p
Good night sir your information is gold Lawson in Trindad and Tobago 🇹🇹 thanks brother.
Glad to help
THANK YOU SIR!!! This has to be the BEST video I've found so far!!! You gave me a better understanding of what each part's function is along w/ what causes different failures! I've got a General Pump T1011 that lost pressure shortly after I effed up. Shut off motor & water to move washer, then fired it up & idled for a few minutes while I did a few things then wound it up to start washing. Gun was probably 50 ft away & when I pulled trigger got nothing...my dumb ass never turned water valve back on! Anywhooters, got it back on ASAP & it worked fine for a bit but after idling again to move a vehicle it decided it wasn't feeling it any more & said "EFF U DUDE I QUIT"! 😁 I'm not afraid to tear into it but been struggling to find accurate teardowns that match mine exactly...pump & unloader (K5) & until now I hadn't even gotten a thorough video explanation so I could diag it & fix it myself w/ minimal cost.
I inherited it from my 90 yr old G'pa last year cuz he decided he was gettin tired & it's a good money maker as long as I'm not starting the season going too far in debt!!!
So thanks again for sharing knowledge & explaining HOW components works & not just acting like I know everything you do. If I did I wouldn't be here! Thanks again! YOU TAUGHT ME TO FISH & DIDN'T JUST FEED ME FISH FOR SUPPER! 👍
And YES, I'm bored & can BS forever. Hope you enjoyed my novel...✌
P.S. Subbed & checked you're info & found something cool. You joined March 26th 2010 & that was a BIG day for me...because at 6:15 & 6:16 PM My twin 👶boys👶 joined the world!!! I'll take that as the vibe that led me your way & why I was moved enough to write a novel in response to your video! Leland & Landon by the way...and they're pricy cuz, TWO TIMES TWO TIMES, so fix washer-make the doughnuts-blow money on boys!!!
I am very glad you found this helpful. That is why I do these videos, to help. The General pump is top of the line. Congratulations on the twins, although late. Have a good one and good luck
Great video and very informative. I cannibalized parts from different units. I added a pump from a unit where the motor went bad and added the pump to a Honda motor from another unit where the pump went bad. Now when I let go of the trigger, the unit cuts off immediately. I took the unloader valve out and the piston moves freely. The set nut was spinning freely and not depressed against the larger nut that holds the spring in place. The unit hops and skips more than I recall also. Do you have any suggestions? Thanks in advance for this instructional video.
If you let go of the trigger and the motor stalls, this means the pressure is too high foe the motor.
Great video, very well explained in details.
Hope it is helpful
Thanks I took some of this info and applied it finally got my pressure washer running 15 months after I got it for free lol
I am glad to help.
Hey Brian excellent video, 22:12 , I am really interested to understand and learn - The best combination of Pressure v/s Volume and related nozzle/orifice sizes. kindly help out, let me know if you already have any detailed video on this . Thanks....
Nice video, good technical info, and not overly explained! I have a (discontinued) karcher g4000rh (4000psi 3.4gpm) itʻs leaking oil. what would you recommend as a good replacement pump for it?
I prefer General pumps. They are a bit pricey, but worth it if you use it to make a living with. AR is a good cost effective pump.
Very Good Video Brian!!!
Thank you very much for your prompt response and guidance.
Brother you made my day with this video my 4200 is working at 2800 but of course at standstill goes to 4k
Were you able to fix the problem?
@@Brian_the_repair_guy yeah a low pressure check valve and the spring on the the part where thre water goes out
What if the water is leaking between the pump and the unloaded? That is what mine is doing. Excellent video one of the best I have seen. Thanks
Between pump and unloader would be a bad Oring. Pull the unloader off. Check the upper and lower Oring for damage
@@Brian_the_repair_guy sorry, my question to you was not correct because it is not leaking in that spot. Without motor running and water hose on, it leaks at bottom between the black pump and brass pump that the unloader is attached to. I did take the unloader off as you suggested and the o rings were bad so I replaced them. Your advice was worth while if I can get the leak stopped. I'm assuming I will have to replace the seals as you show in the video to stop the leak. It sprays fine when using. Problem with using it, it might mess up the motor. I took it replacing the seals in the video was to correct a pressure problem. Thanks for your reply and help.
@@MrAffolder the watervseal 8n the pump head are bad. Locate a rebuild kit for your pump and replace all the seals.
Pretty much gave up after hearing your opinion about pressure washers from Lowes…anyway, at my age I’m just going to rent one each time I need it. Thank you Sir!!
Rentals can be great if you need them occasionally. No maintenance or repairs and don't have to store it.
Great video! Two questions. 1. I'm shopping for a 4 GPM 4000 PSI washer. Pump options are AR, Cat, GP, and HP. Which to you recommend for long life and rebuildability? 2. I've read that using pump saver after every use extends the life of the unit. What's your opinion on using light machine oil or something to that effect instead of the product in a can?
I prefer the General pump. Overall I see the longest life, less problems with General pumps. The parts and pump cost a bit more, but I feel it is far better. Long life will come with service, do not allow the pump to freeze, and do not allow the pump to run for more than a couple minutes without water flowing from the gun. When you let the machine run with out pulling the trigger for more than 2 minutes will allow the water to over heat. You do not want that.
As far as the oils, use the manufacturers recommended oils.
@@Brian_the_repair_guy Thank you Brian
Good video!
Didn’t exactly answer what I was hoping to see but it was so informative I finished the video anyway. 😂
What are you looking to have answered?
Old video, looks like a canpump, same one I have. My oil does look milky Lol, about to invest in a good brand pump soon but so far it's still putting in work for me
I have a 4 gpm with a general pump ez4040g pump. The other day I lost pressure. I took the unloader off and it seemed to be sticking. I cleaned it up and oiled it and it seems fine now. Do you think I should order a new unloader or is this a common problem? Thanks
Sudden loss of pressure typically occurs when a piece of small trash get is the system. The Valves and the unloader will both be affected by the smallest foriegn object. Usually the piece will pass. If you have a thermal valve, keep an eye on it. If you begin to see water leaking from the thermal valve, then prepare to replace the unloader.
I just opened a small business with pressure washing. I watch a lot of videos every day in the evening about different things. Most videos are basically all the same. You broke that unloaded valve down to a science. Thanks for your help. I’ve been wondering if I should turn it to get -/+ pressure. But now I no. I also just ordered a pressure gauge, hose swivel , oil cut off & kill switch spark plugs and air filters. I’m gonna order a new pump cause I’ve had the same pump for 8 years. So was wondering if you will do a video on pump replacement. Thanks for taking time out to help people like me.
I will definitely do a video on pump replacements. I will try to get to it this week. Be sure to subscribe to get notifications. I am glad it helps.
Very good video thanks!
I purchase a power washer on an aution and has milky oil in the pump. The machine is 6hrs old
I replaced the oil once used for an hour then the oil was milky gain.
I think k need to rebuild the pump. 😐
Rebuild the pump and flush the crank 3 times. I prefer replacing pump. The cost of parts can be close to the cost of the pump
Thank you for a no nonsense video. Subscribed.
Ditto
What a great video, you sure do have a way of explaining how pressure washers work, what kind of pump would you be replacing it with ? Maybe you can do a video installing the new pump and setting up the unloader, again thank you
Hi Brian, I really appreciate the precision in your video. I recently bought my first used pressure washer with a 4200PSI capacity. However, it is leaking from behind the head of the pump. I suspect it might be the O-rings, but I'm not entirely sure. Can you please guide me on how to fix it? Your assistance would be greatly appreciated. Thank you."
I have a video about that exact problem on my page. If you can't find it let me know. You can find me on Facebook also
Just ran into your channel, thanks for the video, I bought new 4gpm 4400 psi pressure washer that has a built in unloader valve, I just realize that I should get one that I could run a hose to my buffer tank to avoid damaging it when I’m not squeezing the trigger on the gun. What is my best option other than getting different pw to achieve that. Thanks again.
If your unloader is not a bolt on style, then I am not sure how to go about setting it up for the water to flow back to your tank from the unloader as it dumps. You could replace just the pump to the proper pump.
I just dumped my pumps oil..... it was like spoiled clumpy milk 😂.... thank you for your service to the DIY community 😆
Good description. I am glad to help.
Thanks Brain, it's nice to listen to English & a guy that knows what he's doing & explains all as he goes, damn good job buddy, Bet you're a$$ I'll be following you & probably asking u a few things, can I send you pictures of a pump I'm working on now?
Use Facebook to send questions and such
Thanks for the video. That was really well explained.
I hope it helped
Hey Brian, thank you for the video. I have an older BE Power washer with a 2200psi Honda.
I have a significant leak in the pump, before watching the video I took the housing apart and looks like one of the ceramic pistons is damaged. Would that be the source of the leak?
Great video , i have the same pump but the video didn't solve my problem, my pump is spraying water out of the channel under the centre piston does this sound like a blown seal?
If there is water leaking between the head and the crank, you need new packings and seals. Check the plungers to ensure no damage before getting your parts
I’ve got one of those Chinese pumps and although I can see the pushrods working, one of the cylinders doesn’t seem to be pumping and pressure and flow is not what it should be and the lance vibrates in my hand. It is out of warranty but has not done more than five hours work in its life and apparently only very briefly worked as it should, at the very beginning. It doesn’t overheat because it has an electric motor drive with a pressure cut-out that stops the motor as soon as the lance trigger is released. Could one of the valves be the issue?
Typically, vibration at the gun with trigger pull is one or more valves have trash stuck in it. Find my video on the valves and hiw to clean. That should take care of it.
Thank you man! great video! So helpful and gonna save me a bunch of money!
Glad it was helpful
Fantastic video. You translated giberish to basic English. By far the best video on a pump breakdown. I have a question... Honda gx390 with a CAT 66DX40G1. One of my techs called me and said the engine blew a rod or something because there's a hold in the engine and chunks of the engine flew out. No injuries thankfully. I know that low or no oil can usually cause this so I just purchased another gx390 and am currently swapping it out with the blown engine. I decided to clean the shaft, key, and after coming across your video decided to clean a little more. Something I noticed when cleaning the shaft and key slot....pieces of greasy grass were lodged in there so I was able to clear out what I could see. A couple months ago, this pwasher tipped over while a tech was washing a long walkway. He turned it back up right, white smoke everywhere, small grass fire extinguished. Engine would not restart. Took it to the warehouse, changed all the fluids and spark plug and got it up running again. Then the blown engine incident happened. Is it possible that grass got logged into the pump during the tip over? Is this possibly what blew the engine because the dip stick showed some oil on it when I checked it. I can't see well enough inside the hole that got blown open to see if any oil was in there. This is an older model CAT pump and I'm having trouble removing a few of the tork bolts that hold the head in place, they keep stripping so I found it best to Stop. I'm eager to go ahead and install the pump to the new engine BUT am hesitant to do so in case I didn't get all of the grass out. I've used an air compressor to blow air through all openings (water supply, shaft,unloader, etc. Your thoughts about me moving forward without certainty that all of the grass has been removed (assuming that may have lead to the blown engine). Thank you in advance. We have a 9 - 4 story condo project to start in 6 hours (7:30am CST) and believe it or not the 4gpm wheeled units work better than our 10gpm trailer and flatbed units since we are able to just load the 4000/4 into the 60' man lift basket. This is Phase 2 of the project so we've already been through all the "do it this way" methods. Lol. KtPowerWashing.com
I am having a hard ti.e trying to come up with a scenerio that would cause the engine to "blow" based on the pump that is working as it should. Nothing you have pointed out about the pump leads me in that direction.
Tipping the machine over while running could definitely lead to this. Depending on length of time on its side, how much oil dumped in the cylinder while it was running and a couple other factors.
When you remove the pump, you should be able to spin the shaft on the pump by hand with a bit of force. Do this a few times to see if you can get a fee full rotations with no restrictions. If you can, the pump is most likely not an issue. I feel the tip over is the culprit.
As for the grass, if the grass is IN the pump, use a water filter at the inlet. If the grass is on the shaft, no real concerns.
I just got a new to me 3800 psi pressure washer. Can I adjust it down to 3000 PSI to use my flexilla hose with it? Will I still get same gallons per minute?
@@MrMasterFlash is Flexilla the water hose you will use to provide water to the machine?
Great video.. very clear and concise. Can you post some of the parts sources you mentioned? Thanks!
Sherwin Williams Carey's MiTM parts which can be used on most pumps. Watercannon.com is a good online source.
Washer working then pressure quit, have Annovi REVERBERI rsv3g30 PUMP, no pressure. Took apart to clean /look for debris, flushed with water. Valves very hard to move or remove. (did not take out -options?). Put together still no pressure. Would replace unloader and valves be next step? Removed pump and checked pistons (good). Thanks
You need a pressure gauge on the pump. If you have high pressure without pulling the trigger, but lose pressure on trigger pull, then the unloader could be the issue.
If the pressure shows no high pressure then check valves and packings.
You need to pull the valves out. If they are hard to pull out, it could be they are damaged.
I have a water leak in between the pistons and the pump. What is the solution?
I have a Mi-t-m 3500. I want to pull the pump off the motor. Keep it indoors this winter. Motor needs tuned up. It doesn't start, not seized up.
I will clean carb, and get non ox fuel. Any tricks I need to be aware of removing the pump?
Pull the 4 bolts that hold it to the engine. There may be a set screw through the shaft that locks the keyway. Locate the set screw through the side port on the pump and loosen it. Jiggle wiggle and pry a little to slide the pump off the shaft.
Hi Brian great video I have 3000psi w/ 8GPM Honda Gx690 pressure washer. I need to replace the unloader valve the unloader that's on the pump is a VRT3 however I can't fine one with 3000psi only 4500psi can I use the 4500psi unloader
What pump is on the machine? Most unloaders can be adjusted to change the pressure setting.
*I just bought a Mi-T-M 3000 psi 3 gpm pump for my honda gc190 and I was told by someone to add a bypass hose on unloader to help with off trigger over heating. Would you say this is critical for me to do to make the pump last longer? The pump has 2 plugs where the hose would go so looks pretty simple to do, remove the 2 plugs and replace them with two 3/8 barbs and a foot or so of 3/8 hose. Thanks in advance.*
The bypass hose would attach to the unloader of the machine. The 2 plugs you mention are more likely to allow the unloader to be installed on either side of the pump, depending on the design of the machine.
If you were to install a hose there, it must be high pressure, but I do not recommend this at all. There would be no added benefit.
Due to the function of the unloader, an external hose on the unloader does aid in cooling.
Cooling is only a concern when the machine is left to run without pulling the trigger for more than a minute or two.
Simple solution to this, if you are going to put the gun down, turn off the machine.
If you are not going to pull the trigger in the next 2 minutes, turn off the machine.
If you are waiting on the chemicals to work, just pull the trigger momentarily.
WOW GOOD VIDEO Thx Ed Loretto Ontario Canada
Hope it is helpful
Best explanation video ever. I have a similar chinese pump that has no make or model identifiers. Any thoughts on oil for these types of units. Is a decent brand 15-40w ok to use?
Generally SAE30 nondetergent is reccomended
Very nice explaination Brian. Thank you.
Thank you, hope it was helpful
Good afternoon Brain. I have a Dewalt 3600 pressure washer that won’t start. I removed the spark plug and when I crank the engine without the plug, it shoot out like have a cup of gas and oil as well. The air filter I feel has lots of oil. Can you please tell me what’s wrong and what should I do.
Thank you Sir. From the beautiful tropical Island of Guam.🇬🇺🇺🇸
Watch this video. This is the fix for your problem. czcams.com/video/V29xVXl10O4/video.html
I appreciate your video. Thank you.
I hope you found it helpful
Great video..
Glad you enjoyed it
Wow great. Video thanks so much for sharing.
Hope it helps you
brian, thanks for the class.
I hope it was helpful
Can a more powerful pump be added. I have a 3400 de Wal pressure washer and I have thought of what happened if I replaced orinal pump for a more powerful pump.
The size of the pump depends on the size of the engine. If you have a 13HP engine, then yes, you can go to a more powerful pump. Typically you can go up to a 4200 psi pump at a max of 4 gpm. If you have a 13hp engine I would suggest the AR pump model RRV4G40D-F24 or a variation of that pump. It is 4,000 psi at 4 gpm. Very cost effective.
Does lowering the pressure regulator make the pump last any longer?
@@HappyHands. if it does, it would be negligible. The pumps are made to reun at max pressure for many hours
Hey great video, can you demonstrate how you’d measure the pressure and the flow rate on a unit ?
Looks like a "TMG Industrial Triplex Plunger Pressure Pump" or an exact copy? Not sure I am learning which one to buy.
General pumps are my favorite, followed by AR
Thanks. Good info, very helpful.
So do I have to take it all apart if there is no water flow at all? I have a fairly new dewalt pressure washer for my pool company and havnt used it in a few months and it was perfectly fine but a job came up and the water won't flow through the pump at all and I could not figure it out
Check the intake to make sure it isn't clogged. Then remove the outlet. With the outlet removed. Turn the water on and it should flow. DO NOT TURN THE ENGINE ON
The inlet/outlet valves come out super easy with a pair of pliers
Need to be careful with pliers, they can damage the plastic cage but yes pliers work also
got a craftman washer 3000 lb pressure and it has no pressure unless i shut the water off and turn on took apart and two valves are bad ordered a set i filled the washer pump with oil and left out side in the shed will freezing weather hurt it now
If you have removed the head to look at the valves, then there shouldn't be enough water in the head to cause a problem
Brain, I have AR 3G30 Pressure washer pump that has internal bypass that i am converting to external bypass using K1 Unloader. Questoin is i am blocking the port between high and low side on internal unloader and letting external unloader k1 to do the job. as part of this startup valve also wont work because i am blocking internal bypass so it wont releive pressure using internal loader. i assume k1 will bleed usingn bypass while i pull the rope and doesnt care about startup jet... am i safe to assume that?.. 2. since i have external bypass that will throw the water to ground, i dont have to worry about starting the engine with water and dont have to rush back to machine to stop if i dont use. am i correct. 3.. can i start the engine without water with this external bypass setup or i have to have water running
I am not sure what you mean by an "internal bypass". So it is hard to help. Are you referring to a bolt on bypass and you are converting to an external?
Great! presentation great presentation liked the information i have a 1700 psi Ex cell pressure washer model number WGV1721 found the pressure washer in the trash brought it home and it worked fine but had a leaking spray gun, i tighten the spray gun halves and loss total pressure. I adjusted the uploader valve and still the pressure washer did not get built any pressure if you have any advise or any help, i would appreciate it.
Thank you. I learned a lot. But mainly to just buy a new one :)
Some times that can be the best and most cost effective solution
Wow , really great instrucktions . You should be a teacher.
I hope.it was helpful
Awesome video, very informative,....how can I diagnose an unloaded, so hopefully I have an easy quick least expensive fix to my no pressure situation?....same pump as your video, ive taken unloader apart to the point of removing adjustment knob and pulled stiff spring.....seems intact except for filthy rusty water, but no scale or rust on spring.....was going to just replace entire pump....should I?
What problem are you having exactly?
Great video, I appreciate your time and knowledge. I have a karcher 3000pro with a 9 hp Honda gx270 engine. For the life of me there is no numbers on the pump. The pump leaks water and oil. The oil is not milky. When I press the wand trigger, It takes a few seconds for the pressure washer to activate. Please advice.
If you have a leak of water and oil both, I would consider replacing the pump itself. The cost of parts would be close to the cost of a pump. Just make sure you check the shaft size on your motor to get the correct pump. An AR pump would be a good choice.
Man brought me a simpson EW404. Says it loses pressure and his company bought a whole new pump motor with a new, i call it a manifold... the brass part with the valves in it, i think you call it the pump, the motor bolts up but the pump is a different pattern. Same number of valves, intake's just in a different place. Is this like a carbeurator on a chinese bike, where it may look a lil different but functions the same just a design difference?
That is a hard question to answer. I won't venture a guess unless I had the parts in hand.
If I am understanding, you have a new crank and a new manifold that were purchased separately and the manifold looks to have a different bolt pattern?
Brian, I rented a MiTM CA-2703-HDKB from Home Depot today. I had a pressure gauge from Northern Tool installed right after the regulator and with the trigger depressed the pressure washer stayed at 1900 psi. When I released the trigger pressure climbed to around 2700 psi, dropped down and then climbed and kept resetting every 10-15 seconds.
There was no knob on the regulator. I wonder if Home Depot permanently sets the pressure so people don't chew up their houses.
Do MiTM pressure washer allow you to run them to the factory spec? Will a 2700 psi industrial pressure washer run at 2700 psi? I've seen repairs on consumer pressure washers where manufacturers over rate their machines. Do the psi ratings for MiTm pressure washers hold true?
For what it's worth, 1900 PSI and the 15 degree tip did an amazing job on my formerly green vinyl siding.
The pressure rating for a washer is labeled based on "no flow" pressures. So when the trigger is not pulled, it will hit the pressure labeled. Once you pull the trigger, you have opened the system with a leak if you will. So no matter the tip size, the pressure will always be less than the set pressure. The tip degree and size will allow the pressure to drop. A zero degree tip at 2.5 will give more pressure than a zero at 4.0.
The 15 degree will give more than a 45 degree at the same office size.
The up and down in pressure when not triggered is normal. That is the pump unloading and recycling the water.
I will say for your machine to be running at 1900 psi on a 2700 psi machine seems pretty low. Typically on a 15 degree you would see a pressure of around 2200 psi. But there is always a margin of error
@@Brian_the_repair_guy Thanks for the great explanation Brian!
I appreciate all the videos taking the mystery out of pressure washers.
@@CTSCAPER very glad to help
I have a Honda pressure washer with a devibliss pump not getting any water threw what do you think it could be thank you for your time
The outlet or the inlet is clogged. Checked the inlet to insure there is no debris. You may need to remove the outlet to look for debris. I believe I have a video. If not let me know and I will put one together. What model pump?
Awesome video man, so helpful. Would you show a video of what oil side of the pump looks like?
I will see what I can do.
Very helpul. Thanks Brian
Be sure to subscribe and makes requests for repair videos
I want to change the pump oil in a Stihl RB400, but it doesn’t have a sight glass or dip stick. How do you know how much oil to put into it?
Typically the crank should be about half full. You should be able to find the manual on line.
@@Brian_the_repair_guy thank you. I felt more confident to fill it about half way. I measured the amount that I took out and filled it with the same. I was worried that it burned a lot of oil somehow.
@@Brian_the_repair_guy thank you.
Brilliant explanation. Thank you.
Great video