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Jabsco pump service and hull inspection
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- čas přidán 2. 02. 2020
- In this video I pull the Jabsco raw water pump apart to figure out how it goes together and replace all the bits that need replacing. Normally in a service you will replace the oil lip seal, mechanical water seal and impeller. After that I go for a short SCUBA dive to check the position of the propeller relative to the rudder and cutlass bearing.
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It's finally occurred to me (yes, I know I'm slow...) that I should add a pinned comment to videos to address certainly common comment and save myself a lot of typing. Main points from this one is that yes, if you aren't careful using the two screwdriver method to remove an impeller can dent the housing affecting it's seal. Personally I wouldn't lose any sleep over it if you are careful, but I have ordered an impeller puller anyway to be on the safe side and make the job easier to do once the pump is installed and I am replacing impellers on the water. The second point is that the nylock on the shaft was too tall for the nylon section to reach the thread. I just put some loctite on it for for now, I may find a shallower one down the track.
If you have a PP account Put a paypal.me link in the description Stu
Ahhhh, good! Another update. Thanks mate, I was starting to suffer symptoms of "Trawler Withdrawal". Never mind the ad hoc subject matter, when watched with a couple of beers, everything smooths out nicely.
Finishing with the chooks is perfect. Helps ease the sadness we feel when the video ends. Keep up the good work mate.
Glad you like them. :)
Mate, don't worry about putting out a less than 5-star video every time. It is just good to see you plugging away on this project. Your explanations are more than they will find anywhere else for the items you are working on. Keep up the good work, you are doing great.
Thanks mate. There are a lot of jobs to do before this engine can be fired up and unfortunately none of them are particularly interesting.
Nice job. Dig your channel. I've spent 20 years building space rockets/aircraft at Lockheed. Your stuff is much more enjoyable. Joined your Patreon.
Thanks mate! :)
Zero degrees Stu, I love it!
Great Vid Stu!!! Wow that gunk on the boat bottom is taking off!!! Once it starts moving hopefully some of that crud will come off!!!!
I ran a pair of Ford Transit 2,5 lt diesels in my 1930s wooden 30ft boat, I had problems with the holding screw snapping on the impeller squash plate, repairs underway were difficult as the screw thread did not match anything in my bolt store until I found a screw in the electrical box. Next time in port I stocked up on the correct screws.
The blessing of running twin engines is we kept going.
It's amazing how a single screw can bring a whole engine to its knees. Twin engines certainly do have their advantages!
Here's another tip for you Stu. I keep a big tube of KY on the boat. It makes a good impeller and rubber lube in water. I also use KY on the prop shafts when I move them in and out to protect the shaft seals. Try it on cutless bearings and I guess you'll find other uses for it also. Good luck.
It does some worth keeping some given that silicon grease is quite expensive in comparison and there are plenty of materials that don't like oil-based lube.
Nice rebuild on the pump mate very nice, great, interesting video, starting see a glimpse of light at the end of the tunnel.
Thanks mate. Every little bit that goes back on is one step closer to firing up!
Love the video clip of the birds. They are very pretty. So nice to see your feathered friends. Nice job on the rebuild of the pump too. Watching your underwater section reminds me of my days servicing of barnacle removal many years ago in very dark water while the boat was tied up at a slip. It was more done by feel than sight. Very dangerous job too trying to keep from getting cut on the extremely sharp barnacles.
For sure, so many diving jobs are done by feel in bad viz and barnacles certainly are sharp!
love the sound of the tropical birds in the background. We have had about 6ft of snow the last few weeks. Buried in snow for the next few months. Sure love to be in Australia right now :-).
Ah, the grass is always greener. When it’s hot here I wish I was in the snow!
I have sold thousand of those impellers. We even made a white version to be used with milk products. The company I worked for was base in Dallas, Texas.
I know you need to get in the water but drop the drone (rov) in for a look first, you know what your in for then. Great stuff mate.
Trixie Greatorex The trouble with the drone in murky water is that it is very easy to get lost and never find the bit you are looking for.
love your temp conversion!
I find it hilarious that you have a poster of Zissou on the wall!
Stu
In the past, we've taken zip ties and put them around the impeller. So you can preload the direction. That way you can cut the with side cutters and pull out of the pump.
Nice idea!
Well done Stu. You've rounded the home turn.
7:36 I am literally screaming "Stu, remove the cam!" We had one of these for a bilge pump, and ran it dry during hurricane David, had to clean burnt rubber out of the thing with the wind just howling and water filling the bilge, with both the 471 engine and Onan generator banging away. Nerve wracking! Abandoning ship in a rubber dinghy with 80 mph winds (127kph) would not have been good. Your videos flood me with great memories.
That does sound a bit stressful! I've seen a few bits of equipment fail during times like that as the pressure of the moment can very easily cause people to forget their usual routines like swapping valves over etc. Glad you survived okay!
@@DangarMarine We had some redundancy in our favor. Damned if I let everything I have go to the bottom of a lagoon while I get blown into the mangroves! A lot of carnage around us as we headed home, but you can't be smug when you see other people's dreams showing nothing but a mast or a Bimini top above the water. Captain Peter could be a bloody ass, but we will be friends forever 'cause of all the crap we went through together. Boat life will do that to you!
I suspect there could be enough demand for a D Squad CZcams channel. Keep up the good work and don’t worry about editing the underwater stuff shorter, we like it all
Thanks mate. I'm looking forward to doing a lot more underwater filming in clearer water. :)
In case someone hasn't already said, several manufacturers make fans for their 18V battery range of tools. They're surprisingly effective for what they are and a smidge of breeze on horribley humid days makes a world of difference. Amateur hour's ok by me, keep on keeping on.
Could be handy for sure.
Thanks for the video, surprised by how soon the growth happened, just doesn't seem that
Long been in the water, like sounds of water on the hull as you were working.
Smart idea adding the raw water sensor to the pump circuit. Lot of growth on the hull just sitting on the mooring. Good job sharing the pump rebuild. Might be a good idea to keep an extra rebuild kit on board. Coming along nicely.
Thanks mate. For sure, definitely always carry a spare rebuild kit onboard when cruising.
Hi Stu I know you have the splined pump, but if someone watching has a keyed pump they must fit the rubber disc. Otherwise the key will travel along the keyway and cut a hole in the end plate. As I found to my cost 40 mile out.
Ah, that's good to know. I've really only got experience with outboard pumps so it's good to hear tips like that, thanks!
I see progress, Stu I'm always amazed by how fast stuff will grow on any none moving boats. Jeff in LA USA
For sure, although I'm also amazed how quickly 5 months has gone since it was launched!
Brupeg wants to launch before SV Seeker, but you’re going to beat them both. And Damon was making fun of the size of your boat... lol. Really looking forward to seeing you start sea trials!
Thanks Paul, I'm really looking forward to starting the sea trials too!
The sensor is a great idea for water flow. Love the dive video can’t wait for some wreck diving!!!
Great video. Three helpful hints for free. 1. Look at getting your next impeller from Globe. It’s made of blue silicone and lasts about 5 times longer. 2. Aligning the impeller ears is not really necessary. I had the pump end plate off to watch the impeller rotate rotate and noticed everytime I shut the Cummins off, it kicked back just a little. That was enough to flop the ears in the incorrect orientation. The ears realigned properly when I cranked the engine. 3. That brass cam plate or ramp is overlooked a lot. If that plate thickness wears by 25%, you loose 25% of your water flow. I didn’t realize how thin my cam plate was until I had a new one to compare it to. Mine was almost 30% gone. We have a lot of glacial silt around tidewater glaciers, and that must contribute to increased wear. The pump and cam plate had 5000 hours on them, but who checks the plate thickness?
Thanks for the tips!
Installed a hundred red idiot lights almost every installation... keeps me from coming back in less than a year in most cases.... lucrative marine diesel mechanic. S.F.bay.
Could ask for an easy job but what would be more fun, never done or viewed a few videos prior, it's a never ending push for easy and relaxing bits of work. Looked more complicated than my old chevy water pump. Did a pretty good job in my way of thinking !!
Car water pumps are nice and easy, you just replace the whole thing. :)
Jeez it's cold here mate, 15 deg well in Ireland that'll be a good sunny day.
It's a good idea to have a spare pump on board. It's a bad day if it breaks. Scour ebay, scrapyard and Detroit forums for one. Great work. You're almost home. Dont forget to exercise and grease the valves, steering, strainers and other parts that have been installed but not in use. Nice work on the rose box by the packing gland too.
For sure, carrying spares is essential. Definitely have a bit of work to do on some of the bits that haven't been opened since the boat went in the water. Those seacocks are bound to have a bit of growth in them by now, not to mention the sonar transducers.
I have been waiting for a dive shot since you started the refit on this boat
If at first you dont succeed........ use a crow bar, excellent! You go Stu!! Great vids.
Good job mate time for a quick Coopers!
Stu - Great as usual...I can't wait for you to make smoke
1 meter of snow in here, so what would be better to end the day than watching Stu sweat with an impeller.
Btw. The birdie updates are the "cherry on top" of these videos. Keep em coming
Wow, that's a fair chunk of snow!
We call your circlip clips- "Oh-Shit" washers (technically c-clips here also), cause they always spring off into the unknown and are followed by me saying - "Oh shit!"
I don’t understand why someone would dislike this video. He isn’t doing brain surgery and half a$$ing things. It’s a water pump and he just uses the tools he has at his disposal. I don’t know it just doesn’t make sense to me, maybe one of the 9 people who did can enlighten the rest of us.
Maybe coz no chickens were harmed in this video?
I always lube the pump with a heavy dose of 50/50 dish soap and water. Makes assembly much easier. Far more lube than that little packet they give. First time is always a pain, you did a solid job.
Yes, a fair soaking would certainly make it a bit easier.
Love the " won't come undone newton meters" torque specs
Happy Monday Stu
Yes, I was speaking to the screen a bit when you were taking that pump apart :D but great Video! The back plate, the wedge and the front plate are designed to wear, we always called the front cover and back plates just 'wear plates' I have to admit I would change them just because it out and easy to get to, but they do last for years - I never changed mine again. I have seen people wreck a Jabsco pump using screwdrivers to lever out impellers, there is a proper puller for the job (Search jabsco impeller puller). The body of the pump is very pretty soft and if you mark / burr the gasket area and it wont seal the pump is dead. I know you have 'the feel' so you were going to be fine, but if its the first time you have ever touched one, use the puller - its will save you a fortune also make sure you have room to use it when installed, my boat you couldnt, so i bought some small plastic levers. Obvious being careful is the best bet!!
One other to note, there is a gap between the PTO drive and the main pump body where you can see the shaft of the pump, if the seals are iffy or the shaft is worn water will drip from here and you can see it. (Also stops it running back in to the engine through the oil seal)
Cannot wait to see the boat making way now, most of the fouling will just come off when it moving!
Interesting to hear about that puller. It is going to be much harder to get out once the pump is installed so that could be a good thing to keep with the spare impellers. I did notice that gap, it does make sense to not let water into the crank case if the seals both fail.
Another excellent video, Stu! I love listening to you work through your problems. One of the first CZcams video I watched was how to fix an impeller on a old small outboard. It convinced me I could do the same on my 80's Evinrude 7.5HP. Cheers!
Thanks mate. Most of this stuff can be understood from first principles with a bit of time. There are still things I would get a pro to do (like maybe aligning the engine) but impellers are definitely DIY territory.
@@DangarMarine Lots of stuff is DIY once you've seen a video of someone else doing it. Knowing the proper tools, hearing the calm, reasoned voice of an expert reasoning through the process is gold.
Also, 2 thumbs up to the pinned comment you added here! I find most CZcams comments not worth the effort, so surfacing your additional thoughts is, again, GOLD! Please do more of that...
Good to see the D squad!
And I was part of the '2 grunts with a big spanner' brigade, so I understand your torque wrench settings! :-)
As the nearest I get to deep water is driving over a bridge, I'm watching with interest! :-)
I like the idea of measuring torque in "grunts" ;)
Next time Stu put a little grease on the gaskets. That's what V drive builders do so the gasket will seal but not stick to it.
To clean the bottom get a stainless steel drywall knife as wide as you can find. We have a 6ft cut away keel, put a weight belt on and swim lengths of the hull. Also most of that crap will come off when you get moving.
WOOT, D-Squad for the win! Nice update Stu, look forward to seeing you beat the hell outta that drive shaft.
Yeah, it’s certainly going to be a battle that’s for sure!
WOW! I'm amazed at the growth and how fast it came. Keep up the good work man, love your videos. Cheers from the coast of Maine.
Good stuff Stuey, nice to something going easy for a change, although couldn’t believe the grime under the water line and after all that hard work. Looking forward to the next one 👍🏴
Thanks as usual Stu, glad you saved tthe pigeons till last,take care
I know what you’re thinking, save the best for last!
Good job Stu, it was good how you just went ahead with it even though you didn’t know that much about it but you figured it out and learnt a few things while doing it. Good one Stu kind regards John
Thanks John. I find when you look at most things they are a familiar set of components. Oil seals, bearings, drive shafts etc.
I'm a bit amazed that the connection from engine to prop shaft is a solid one, vs. some sort of even slightly flexible coupling, U joint, hard man-made rubber insert between crank and shaft. Please remind me the year that boat was built as well, perhaps newer setups have such connections which would also allow for some sort of shock/vibration absorbing motor mounts.
I’m adding a poly flex coupling but it was originally metal on metal. Not enough room for a CV joint. Owner built in 1990.
Now then Stu, whenever you take out those bronze cam plates "that allow the pump to pump" ... always note which way around they go, as often they have a slightly different profile ... and it is dependent on which way around the pump is rotating, and if you get it backwards it will run, but cut up the impeller real quick. The "input" side has a slightly shallower profile than the outlet usually, to give the rubber blades an easier start. Not sure about the Jabsco ones, but the Volvo Penta ones are "handed" and it chews up fast if you get it wrong, don't ask me how I know.
Good tip. Given that, If I was making them I would slightly offset the bolt hole so it can’t go in the wrong way.
Tighten them to "Won't come undone again" Newton/Metres ... that kept me chuckling for ages!
" won't come undone again newton meters", I gotta remember that one!
That was fun! I think the diving was the best! My impellers come with the same little packet of start up grease but it's labeled Glycerine...... cheers Warren
Thanks mate. Plenty more interesting diving to come once the boat is up and running.
I can't love this channel any more! I can't wait for the fire up..... Nothing like it
marc jordan I feel sorry for you. :(
@@DangarMarine hows that?
@@DangarMarine wait..... I mean i cnat love this channel..... Any more than i already do.....
@@DangarMarine grrr... Suxks that text can be read not in the manner i wrote it..... ... To be clear... I LOVE THIS CHANNEL! you are my Australian hero.... You and life onnthe hulls
No chickens were harmed in the making of this video, though some complained they were made to feel silly.
Reminds me putting together my new PC (from mostly used parts). A learning experience after 11 years since my last build. Went through 3 motherboards because the one I got with the old PC I was salvaging was proprietary and didn't work with my power supply. The second just needed some adapters for cables, but apparently now you can have a socket that fits processors the motherboard doesn't support. Neat! Third time's a charm. Then just had to cram it all into the small case. And the front panel cable is not fully seated because the USB3 socket is too close.
Ah, it's all a learning experience!
Murphy visited you too
Keep up the good work that you do! I greatly appreciate being able to follow along on the journey.
Thanks mate. :)
Stu, thank you so much for this episode. I learned a lot about jabsco pumps. It was nice to see you working this through step by step. That pump looks great. Also, thank you for keeping your patrons and followers updated with honesty, not like others playing stunts and humiliating followers. Great episode!!
Thanks Dan, glad you liked it. I'm glad too to know a bit more about these pumps now. They are certainly something that every owner should be familiar with even if you get a mechanic to do the bulk of the mechanical work.
Great vid, ok you take a zip tie wrap it around the impeller towards the top end so it will pull off easy in the direction u want to be.drop it in the housing when it home u pull the zip tie off makes a 10 min job in to a 1min job easy
Hey Don, good idea - will try same when I next do my water pump. cheers
Chicken Marine should be your second channel.
Because the nylon can melt with the fast speed of the air tool. The speed of gun creates friction, it's best to use a spanner. Great work you're doing on the boat. 👍🇬🇧
It is amazing how much heat can be generated just doing and undoing nuts and bolts.
Hey mate, whenever I'm putting an impeller in I put 2 cable ties around it to compress the vanes, then as it goes in cut them off one at a time. Also Ive found its not really necessary to be super critical about which way the vanes are pointing cause once it rotates they will all pop to the right direction! Obviously if the pumps connected to the engine you cant turn the impeller so its a pain in the arse to get the things in for sure!!
Beat me to it that's exactly what I do.
Love it just watching “exploring abandoned mines” and as it finished stu popped up! 😉
That sounds like the type of channel I would like. :)
Dangar Marine
czcams.com/video/WI6ApUvuToM/video.html
Look at some of his other videos!
You’ve got to have a big pair of balls to wanna decent down some of those shafts and do what he does. Make my arse twitch just watching 🤣😆
Frank found pretty old jeans
Well I am a fan of that channel too Robert. And like you up popped Stu;s vlog. Insomnia rules.
@@jossmaxwell00 Not that we would ever say Stu's videos cure insomnia, they certainly help pass the time very well
"Never-coming-off-again newton/meters." I think I can handle that metric conversion... it's close to "I-lost-my-torque-wrench ft/lbs," right?? Amazing how often that measure gets used.
Pretty much. ;)
Looks like cutting in a small air conditioner to the wheel house may be on the list in the future . Beers ! I tip my can to you Sir ! Thank you for your work showing us this great adventure .
Have been toying with the idea of AC.
Very interesting video! I've worked on a couple of small Jabsco Pumps, I remember the impeller vanes but not the details. An informative sequence though.
Quote: "Swapping to Dive Cam" :) awesome. I couldn't get over how much growth there is on the hull and prop.
Still I am more used to ships where we had ablative anti-fouling on the hull and you might get the odd barnacle in the bow thruster tunnels.
For the prop we were more concerned with cavitation damage than weed! But then, a day in port was a day wasted.
Looking forward to the shaft alignment - hope you are not tackling this on your own!
Hi John. I think that dive was a bit deceptive with regards to the condition of the entire hull but I'll do a longer video of that once I get some gloves and a scraper. For sure I'll need to clean out the skin fittings and sonar transducers though.
Unfortunately the alignment has been mostly a solo effort so far, although I did grab Dave to help me get the new shims under the engine mounts a few days ago. I'm still at a bit of a loss as to how I'm actually going to do it at the moment but I'm sure I'll get there in the end.
At 2:33, the 2 small holes are so you can tap them and insert long bolts up to the puller cross arm !
When circlips are extremely corroded, scrape off as much of the corrosion possible, hit it with some penetrating oil and use a screw driver/pin punch to get the circlip moving in the groove. That is half of the battle.
I hope you bought 2 carb kits for the Honda engine and you still have a spare kit for the Jabsco pump.
Good tips!
I really enjoyed the pump rebuild and will likely refer back to this episode at some future date for DIY encouragement. I really enjoy your chicken vids at the end! It's amazing the personalities that chickens can have. It's been a joy getting to know yours!!! (yes, I'm a fellow bird nut....) ;-D
Thanks mate. Yes, chickens do have very different and distinct personalities for sure. :)
Stu, I enjoyed the video like always. I have never felt let down by any video you have produced. I feel fortunate that I can experience these things with you. I am always excited for new videos, I wonder what you will be up to now. Thanks Stu!
Thanks mate, glad you liked it. :)
Since you lacked a dive buddy, I watched the video very carefully and would have called the authorities right away if you failed to return from the water.
LOL. Thanks mate!
I’m glad you used the supplied lubricant. That happens to be silicone grease. If you have an impeller and no lube, you can usually get the stuff at a dive shop if you don’t have time to order it. Never use petroleum based, or marine grease on the paddles because it can cause the rubber to swell up or soften. Dish soap is ok, but less than optimal.
I hope that wasn’t fresh red Loctite you used or the next change will get a bit wordy. I use tiny dab of blue Loctite a lot on things, it’s as good as a new lock washer. Never allow Loctite or white pipe sealant to contact plastic as it can cause it to become brittle. Humm, so that’s why that air pressure regulator cracked?
It was 569 hydraulic sealant not 262/3 stud lock so there won't be a drama undoing them
Swimming pool supply store is cheaper and larger tubes
Russell Martin
Good to know. Three choices Amazon, pool supply and dive shop for silicone grease.
D-squad on manoeuvres - great!
Free range eggs on toast with a nice cuppa is pretty hard to beat.
Sure is!
Your a champion, you've been so so helpful , thanks for educating us, great KUDOS to you, have a great festive season, be well. Rob
"won't come undone newton meters" killing me :)
Another great video Stu. Way better than most of mine...
Impact driver is one of the most important tools in the box. you can also use it to make sure those bolts are tight.
They sure are handy!
0 degrees Stu..... Love it.
Nicely done Stu
Love the chickens.lol Glad to see i'm not the only one that talks to birds
They certainly talk back enough!
@@DangarMarine Happy chooks lay more eggs
I wouldn’t be offended if you showed more of the chickens, i honestly wouldnt mind! ;) ha
For cleaning barnacles, a plastic auto-windshield ice scraper is great, and does little damage to the paint. I suspect the local hardware store in your area does not stock those.
Yes, we don't have ice scrapers here but there are similar plastic scrapers that would be perfect.
Just a thought, I have seen a few of the Bribie locals with boats moored in the canals here slip over the side and under the boats with the Gerni in hand and do an underwater pressure clean. Seems to work pretty well. Love your work mate, bit surprised to not see a "Coopers" in this episode? Don't dehydrate.
Interesting. I would have thought the water would have lost speed pretty quickly. I'll give it a try if people have success with it.
@@DangarMarine Yes, they hold the nozzle reasonably close to the hull it gets a lot of crap off. I have done it in my pool with success. Its worth a go. If it fails I will bring down a carton of Coopers next time I go to Urunga. I will venture further to Dangarville.
Great video Stu. Like the dive cam. Cheers
Thanks Rupert. :)
I thoroughly enjoy your poultry intercouse at video's end - a fitting climax.
I love to follow the way you are fixing the trawler. Big job and intreresting to follow your work on th boat, without shorcuts. Regards Tore, from Norway
Thanks Tore. :)
I am amazed to see the marine growth since launch - five or six months? Another very interesting video about ...a water pump? Every time you say something like "monitor while the boat is underway" I get a little thrill of anticipation - I am already exited to tag along on your first voyage.
Thank you for the video! The Renko! It's alive!! ^_^
You don't have to put Loctite on the four small bolts holding the cover on. I have been putting Mercury 2-4-C on them for years and they always come out easy when I replace the impellors every spring on my twin engines.{ They always come out of the pump with a "set" after sitting idle while up on the hard for the winter} Also use the 4 small washers that come with the bolts. Really enjoy watching your videos.
Great video
Stu, I used to pour water down the exit hose on rebuilt raw water pumps just before the first start up in addition to lubricating the impeller. It was probably not really necessary, but it seemed to help.
Great work - looking forward to to seeing you under weigh.
Yes, I was thinking something similar to help with lubrication and priming the pump.
I also left the discharge hose off of the pump just to allow the pump to prime without any possible back pressure - again, probably not necessary but at least I knew the pump was working as it pumped some water out of the pump. I was always paranoid of running the pump dry.
You can get a Impeller puller Stu, meaning you can remove it and check it, without damaging the impeller.
Yep! Ordered one yesterday. :)
..nothing like a bit of preventative maintenance, better to fix now, than on the deep...lol great vid..
For sure, it will be good to have confidence in the pump now.
ah yes, good old hawkesbury water. you can go for a swim in that for an hour and come out with stuff growing on you.
and pelican itch.
That's pretty much the size of it.
I Love Stu's everything is a hassle attitude.
I wouldn't have that attitude if everything wasn't a hassle. ;)
Your a champ!
Love your vids mate 👍
Thanks mate.