Testing an outboard water pump
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- čas přidán 27. 06. 2016
- In this video I quickly go through how to testing the water pump in an outboard motor. The main tips are having the outboard deep enough in the water and making sure you are turning the drive shaft in the right direction for your outboard motor (most often clockwise)
For outboard repair information, checkout my website: outboard.dangarmarine.com/guide
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Every time I work on my boats I end up watching hours of Dangar Marine. Thanks so much you have helped me keep my family having fun and fishing year after year. Thanks again Sir.
hola muy buenas tardes , quería pedirle un gran favor si es posible soy de argentina y me gustan sus vídeos y la verdad aprendo muchisimo , podrian salir subtitulado en Español para poder leer lo que enseña ,para mi y otras personas mas ,sería de gran valor muchisimas gracias y saludos desde Argentina
Me too 💯
Hello, I have changed the impeller on my Mercury 30hp and I have checked that the impeller is stuck and spins when you turn the shaft. but there will be no cooler water from Tell-tale. does pressure have to build up and can it take a long time? thanks in advance.
Thank You I rebuilt my water pump reinstalled my Foot (Lower Unit) No water with muffs.Placed it in a barrel up to the water intake’s and no water. Removed the lower unit 3 more times to re check my work. Scratched my head,slept on it and tried again the next morning NADA! Searching the IT and found your posting. Repositioning the engine in order to get deeper in the barrel and WooHoo, my work is good and proves a point to me that muffs can’t be trusted nor can a barrel if you are not close to the cavation plate. Thanks again and as you said if it were a self priming pump things could have worked but now I know. Stay Safe and Enjoy the Water ✌️
You are the man!!!! I was about to give up. I didn’t know it would suck air if the water wasn’t high enough. The muffs did nothing for me. Filled a tote and now she pumping water like a champ. Thank you!!!!
Exact question I had. Thank you
You just saved my 4th of july man! cleared the tell tail still wouldn't pee, lifted my bin up a little higher and she started peeing again.... i was 5 mins away from taking the lower off, hopped on CZcams for a guide on how to do it and seen your video in the recommended, thank the lord i watched your video first! Thanks a million man!!!
Man you really know your stuff! I tried that same test and it was only pumping on high rev!!!! and was only pumping sometimes . So thanks for the info!!!!!! Will do a total overhaul!
After battling a water pump for a couple hours I watched this and just hooked up a hose with earmuffs. Problem solved, boat runs like a champ. Thanks Stu!! Rebuilt my lower unit with new dog clutch and all new seals, carb rebuild, fuel pump rebuild, fixed throttle advance, and everything is greased up. Literally all from your videos. Two years ago I paid a guy $650 to replace my impeller (after 6 weeks with my boat). The freedom you've given me is unbelievably valuable.
Glad it helped. :)
$650?? You got ripped.
@@wolfpackflt670 just like al the boat mechanics and shops are, rip offs, like car mechanics, a/c guys etc.. I can do them all and I know they are..
Hey brother, I'm from Brazil and I'm serving the Brazilian Navy and your videos are helping me so mutch to fix de boats of my ship. Really thanks!
You're welcome Yago. :)
Man, Thanks so much! I just did my first water pump on a little Johnson 15 and set the engine in a bucket of water and it did not pump. Was getting ready to tear the thing apart again thinking I had done something wrong. Your video was a life saver. As you pointed out, these pumps are not self priming. I found a deeper bucket and filled to the level that you recommended and presto, she was peeing like crazy. Thanks for the excellent video. Keep up the good work!
Great. What about if its not pumping when hooked up with a water hose vs bucket?
Stu is spot on; recently experienced this after I build a motor stand and tested the water pump after replacement (previously would do it from the stern of the boat). Used the same bucket which was not high enough with the stand like it was with the boat.
Straight to the point. This guy is great. Thanks for the terrific learning experience.
I've repaired many many motors here in Alaska and didnt know they couldn't self prime, you make great videos and they're Always very informative.
Thanks Charles, glad you've been enjoying the vids!
My son and I had taken ours apart and worked on the impeller. Once we were done we reassembled everything and... no water flow. We had the lower unit in a tub of water with enough to allow the intakes to be below the surface but your tip about lowering it even more was the key point to prime the pump. We tried again with a taller water tub and voila... problem solved...! Thanks so much for posting this video. It saved us so much time and money. Cheers..!
Glad I found this video. You just saved me a few hundred bucks by not having to get my pump replaced. I had been testing my motor in tank but the tank wasn’t deep enough. Got a taller one and pump works great.
Great to hear!
wow..I'll try that tomorrow
Thank God I found your video , I've been battling water pump issues on an old johnson seahorse 35hp for months now , I think I've finally worked out what is going on
I would have spent hours removing the powerhead and ordering expensive parts if I didn't run across this video. I had everything together fine, forgot about the water depth. Thank you Sir!
You just saved me a lot of time and money. I replaced the water pump and couldn't get it to pump water. Filled up the trash can with a little more water and it pisses out water like a racehorse. Thank you very much.
You're welcome, happy to help. :)
Thank go for this video!!!! I almost When and changed my pump because I had water low like the first I was freaking!!! Thank You!
This video saved me a lot of time and money.
My motor telltale was not peeing. I replaced the impeller. Still nothing.
I tried muffs. I tried a bucket. Nothing.
Was just about to take the lower unit off and verify everything looked right (and it would have, because it was right). That would have lead to even more confusion. Then I would have taken it to a repair shop.
But I saw this video suggesting the need for deeper water.
Got a new, larger, deeper water trough and it worked!
The telltale was working perfectly. Yayyyyy!!!!!
Thanks Dangar Marine!
After testing my motor after a 6 month break it wasn’t pumping water, pulled the pump apart and rebuilt it only to find it still didn’t pump… after a second rebuild and a lot of cranky words I found your video! Adding more water to the bucket magically fixed it, thanks!
Hey just wanted to say thanks for your efforts and time. I'm an apprentice boat tech and I'm just finishing up Yamaha school in the states. Your videos are very helpful .. thank you sir.
Michael.
You're welcome Michael, good luck with last of your training. :)
Sadly, I did not see this until after I dropped the lower unit and took apart the impeller housing. I reassembled all and raised the water level in my tank to the prescribed height in your video and Eureka! A lesson I'll not forget. Much thanks!
You're welcome Chris, you know now! :)
Great stuff Stu - saved me a bunch of panic - thought I had munted my brand new outboard but this explains why !
Thank you so much!
I replace the impeller on my Evinrude 9.9. The motor has planing fins, so I used a storage box that accommodated them, and still submerged the intake. I had used a motorcycle fork seal grease, on the impeller, during reassembly, for insurance. After running for 20 seconds, no "peeing"?
I was about to tear it back down, second guessing my work, when I found your video.
I removed the fins and used a recycle bin, deep enough to submerge the pump...presto! It primed and circulated.
THANK YOU!
Well, this vid might have solved a suspected problem I have. With the "ear muffs" on the motor on land the water is very slow to piss out but when the motor is in a lake it's fine. I will test this theory in a bucket and I suspect you've helped me out again. Thank you! excellent video once again.
Yes, ear muffs are notoriously unreliable when it comes to feeding water to the pump. Glad the vid helped you. :)
Changed the water pump and gaskets, raised the water level in the 'bucket' to just about where the water pump is situated and poured in 5-1 ratio of plain white vinegar which was cheaper at the supermarket, cancelled the descaling fluid......Ran for about 1/2 an hour and was left with a tablespoon full of sand, shells and silt in the bottom. Rinsed with fresh water and the tell tale and exhaust were pumping water out. Job well done
Nice one, sounds like it made a big difference.
Stu
Thanks so much for your videos and knowledge this connected some dots for me
BEST VIDEO ON THIS ISSUE THAT I HAVE FOUND!!! You just made me realize my issue with my 35hp Johnsons! I just bought it and when I tested it it wasn't upping water but I never had the motor much deeper in the barrel than the battery box test you showed. I am about to run outside and fire it up to see if this fixes the issue. Thank you for the great content!
Just tested it out and running perfect!
Glad to hear it's all fine. :)
you bloody legend, thats the best little nugget on the interweb. fixing up my Merc 20hp that has sat for 7 years. just had the leg off and on again and off again put it all back together and then found this, boom there she goes water like a horse. If I could send you a box of coopers I would. Thanks John. New Zealand
Hey John, glad the video helped you! There's always the Coopers fund PayPal link on the channel page. ;)
@@DangarMarine just did enjoy
Drinking a Coopers right now to your good health fine sir. Have a great New Years! :)
Thank you! I was testing my 3.5 envinrude, which is a Tohatsu 3.5, it seems, and no water was coming out of the tell tale (I also learned from another video of yours that it is just a tell tale, not all of the water comes out of there). I was thinking I had a problem in cooling system but it was just the water level that was too low. Saved the day!
Thank you,I think that is what is going on with mine,replaced all the pump parts including a new outlet seal and little or no water pumping,it was about the level of your first test and no luck with the muffs either,I need a trash can or something deep to get this thing primed.Going to try spinning it while disassembled too to know it's pumping.
Stu, once again your videos are a life saver. Planning to take the wife out on the lake tomorrow and when I was prepping the boat earlier in the week, it wasn't pumping water. Thankfully I knew what not to do and it didn't overheat but I remembered this video and tried getting a bigger tub. Bam. Pumping just fine. Also a nice side effect of the engine getting a little warm was my moisture misfire gremlin was cooked out of the ignition system. :P
Hey Peter, sounds like you've had a big win there. Hope you both had a wonderful day on the water. :)
We did indeed. Had a little issue with the gear selector not wanting to go in to reverse. Looks like its a cable issue and not the motor itself.
Was definitely the cable. had to adjust the "nut" on the engine side of the gear selector cable so that at "full throw" reverse, it wasn't pushing the rod far enough back. Takes me back to my amateur bike mechanic days. :P
Stu you are the man. This is the first and only time I have seen or heard this golden nugget of information. If this works I will dance a jig.
Good luck!
Thanks you so much, your video has saved me. I just could not understand why my new impeller was not pumping. The ear muffs are useless and then used a large bucket. But as you have shown water level is critical. All good now. Thanks again.
You're welcome Steve, yes, I have very mixed results when trying to get a telltale on ear muffs.
Always make things simplistic, love all the videos and tutorials! Thanks again....
Thanks Chuck, glad you've been enjoying the vids. :)
Holy shit. I destroyed my newly rebuilt pump running it in a tub without enough water. Now I know. Thank you!!!!!!
Yes hehe this is not easy.I tryed and get the shop mounting a new impeller when separated it,s gearhouse, but it dont cool good.A little used yamaha 8 so go for a new tohatsu next year.Tohatsu seems to have little to no problems with this since used them for years before.The yamha will be sold cheap to get rid of it.
Thanks! Had this issue yesterday, going to retest today!
Great tip.
Also, if you have checked everything out and everything appears to look good and the water level is high enough and it's STILL not pumping, look closely at the seal on top of the impellor housing. If it has a seal. Some housings don't have seals. Some do. If they don't, look at the housing itself. Make sure its not distorted from heat. If you stick a short hose into the housing where the water shoots out of the housing, there should be a good stream of water coming out of the hose. Just keep your face away from the sudden gush of water.
That's a new one to me . Thanks for the phenomenally great informative vids
OMG! THIS is the video that everybody is looking for. I took careful attention to Change my impeller properly and then did the test in the driveway with the Ear Muffs, then the flush line with my garden hose (tell tale worked perfect with this flushing test) etc. EVERYTHING and I mean EVERYTHING was perfect though I could not get water to come out of the Tell tale. I even filled my trash can up to just above the Intake Grids and STILL couldn’t get water to pump through the tell tale. I watched this video and thought “...there’s no way this is going to work..” and yet when I backed the boat down the landing ramp and lower the unit into deeper water, I started the motor in deeper water and WHAM! ....Water streaming like a river!!!! YES! I still don’t understand the physics of this as to why the deeper water makes/made a difference BUT IT WORKED and Dangar I am forever grateful! Thank You!
You're welcome Mike, glad the vid helped you. :) It works because the pump is higher than those grills and can't suck air to get to the water.
@@DangarMarine Hey. I am from Russia, I use a translator. Sorry for my English. The question is, when we go on a glider, the water level is lower and the water flows. Why?
Wow, this little gem of a video just made me and my motor very happy. Thank you!
Glad I could help!
Pulled lower unit off 4 times thinking it wasn't working right. Then my google skills found this video. Thank you so much....sunk it in a trash can and boom...working. Awesome sauce!
great info, cheers
Thanks Wade.
I am glad I watched your video. I tried to test mine today and thought it was bad but after watching the video I realized my water may have been to shallow. Thanx!
Thanks Gary, hopefully your pump is fine.
Ha ha ! I've been scratchin me head for 2 days tryin to figure out why it's not pumping.
Added a bit more water to the bucket & ....BINGO ! It's pumping !
Thanks mate !
Stu is a good teacher his videos are very helpful he knows the trade thanks for sharing mate
You saved me a bunch of time also/// I was getting ready to change out my water pump and tried what you showed...it worked just fine with a little more water...thanks so much... : )
Glad it was that simple. :)
@@DangarMarine my only comlaint is using a ratchet strap to pull the leg on my 90 tohatsu loccks up with about 2inches left no way am i goingbto force it i think its the shitty copper water tube not seating in the pump pity you CAN'T look inside and see
Just a quick comment to thank you for the excellent videos on Outboard engines it's helped me tremendously
Thanks Sal, glad the vids have helped you. :)
Great information! Thanks Mike
Thanks Mike! :)
I had changed my impeller at the end of last season.. I filled up a bucket and started the motor and no water.. let it run a while and heard an alarm so shut her off.. started thinking I had to tear it apart again but thought I would see if you had anything about this. Saw this video, used a larger container and that did the trick!Thank you thank you thank you!!
You might have just saved me 250 bucks. I just ran my outboard with water only up above the intake holes and got no flow. I had already gotten a price for a new water pump. But I decided to check out my man Dangar. If this works, I'm going to open an account on patreon for the sole purpose of making a donation.
So glad I watched this video. I bought a used 2002 Honda 225 outboard. I saw it running at the time and it gushed water out the jet, but when I installed it on my boat a couple of weeks ago using ear muffs on the garden hose, no water came out, so I switched it off. I then put it into a tub with the water coming to about 1/4 inch above the intake, ( deepest tub I could find ) but still no water came out. Now I know why, thanks to you. Your videos are the best on the web and I really enjoy watching them. I like the fact that it is not all about spending money, it about getting things to work one way or the other. I would love to see you working on the exact same engine as mine but realize it would be difficult as there are so many choices out there. I would suggest however, that if you did do videos on the most popular models and horse powers, I, and many others, would be prepared to pay for access to in depth instruction videos of their particular engine, done in the same manner as your existing videos. I really like when you ad small additional pieces of information, just so that we are fully aware of the situation and therefore stop us rushing in and doing something stupid. I was about to strip down my engine and replace the water pump. Now I will wait until next season and test it in the water. I am now sure there is no problem, but at some point I will service it, just so I am aware off it's condition. I would like to see you make a buck just so you will stay with it. Thanks again. Keep up the good work. Bob.
Thanks Bob, really glad the video saved you from some unnecessary work. I'd love to slowly build a collection of videos showing all the common jobs on the common outboards. Hopefully over the next few years I'll get enough of the right motors in here to do that.
I replaced mine last year and the test run worked great. I tried it with just the intake underwater and didn't work. Now I know why! Thank you.
Your the man I did what you said to see if the new water pump worked after putting it into a bucket or large garbage can. I did just that and now the water is peeing out of the piss tube Thank You very much. A++++
Once again you have saved me from pulling my hair out. I replaced the impeller in my '93 Evinrude 25 (among other things) and after putting it all back together got no tell-tale while running it in the tank. Watched this video, jacked my water tank up higher, filled it to the very brim and...PRESTO! Motor is pissing like a champ. Donation sent, and money will spent. Many, many thanks mate!
Hey mate. I always love it when the videos help people out. Thank you very much for your generous donation, it is very much appreciated! :)
Thank you for this video.
I always appreciate thanks your lectures
Stu, I have to agree with J Dexter. Another good tutorial. I took my lower unit off due to it not pumping water. I suspected the impeller but it's fine. However the rubber piece covering the top of the impeller housing is torn and unserviceable. I'll test the lower unit just like you've shown and also pump water through the upper unit before assembly.
thanks
It is a good move to test it first, it can save you a lot of work in the long run.
This video is awesome. How is this not the first thing everyone says to people who is testing motors? High water level! I've spent two days wrenching on my Johnson 6hp engine, trying to figure out the cooling issue. All i needed was more water! Thanks!!! (i also changed the impeller, and serviced a lot of other stuff, so all the work was worth something, as long as it works now, which it does).
Eirik A, I am fortunate and only spent 2 hrs before my buddy sent me this video. Stu is great.
Excellent video. Thank you.
2nd time ive used this video , thanks mate keep up the good work
Thanks Larry!
best ever videos on youtube thanks
Thanks mate, glad you like them. :)
Saved Me from splitting the motor. Just did the Impeller and no water coming out. It was just covering the intake. Back out for deeper bucket. Thanks for the vid.
Thanks for the idea. I did this with my 40 HP Johnson, but the driveshaft was too big. I ended up clamping a piece of garden hose on the shaft, and a half inch extension{upside down}, and inserted the extension in the drill. worked awesome.
Thanks Stu. It was doing my head in why it wouldn’t pump water. Now I just need to adjust the gear selector and all done.
Thanks for showing us how to solve the mystery of why our newly installed water pump was not working! Not having the water level high enough when testing prevented the stream from flowing. It would have been better if we had found your video before our fourth breakdown and re-assembly, but my 16 year old is now an expert on both impellers and thermostats.
Hey Grace. Oh well, at least it was a learning experience. You never know something until you've done it four times! :)
thanks , i didn't know that, very helpful
Saved me at least 100 bucks today thanks 👊
Awesome. I love this channel thank you
yep good stuff!
Thank Darren.
Thank you so much for all the information you provide, you are a true blessing to all us boaters :)
Thanks William!
Well i pulled the lower unit and replaced the water pump and guess what....It works, thanks again!
Thank you so much this helped soooo much
Another amazing video, thanks.
You're welcome, glad you liked it. :)
I learn so much from your tutorials boss ;-) Love it.
Greeatings from Norway.
Thanks mate! :)
Some solid advice on this video. For new folks to the outboards that is handy to know. Thanks.
Glad it was helpful!
THE VIDEOS ARE VERY EDUCATIVE TO US MARINERS
Thanks George, glad they are helping you. :)
Nice idea there. Thanks!
I like your videos thanks for making them great job
Thanks Brian, glad you enjoy them. :)
Stu, Thank you for all of your videos / help. This video saved me from going crazy. You were right and your technique works. I couldn't get a cordless drill on the shaft. I used a shop towel and vice grips for my experiment. Please keep up the great videos... We need you in the States (even if it is via CZcams)
Thanks mate, glad the vids have been helping you. :)
Great explanation, thank you.
ooh i think you have solved my issue with my 2008 suzuki DT30. Thank you keep up the great work!
Great to hear!
omg thank f@~£! I was going to run my outboard short with the cavitation plate just touching surface of the water.... Subbed
You're welcome, glad the video helped you!
I have to THANK YOU as I replaced a few parts to include the impeller, water seal damper, gasket...etc and no water came out.....I filled a bucket higher with water and it came out just fine.
Great information about things that appeared like only a Factory trained Mechanic could do. Your video presentation is straightforward And demystified. Thanks M8, you're Awesome, And you saved me a lot of money. Fair dinkums..
You're welcome. :)
thanks. this video adding my knowledge about water pump in outboard motor. thank you.
You're welcome, I'm glad the information has helped you.
thanks I think you saved me replacing a water pump
Damn! Thank you! I was Fed up with taking this leg off wondering what the heck I had done wrong on the impeller change
Awesome tip, really helpful.
You're welcome. :)
Such a simple concept can mislead you if hey.....thanks Stu
Welcome Nick. :)
your videos are very well explained and good for problem tracing, great tips, keep up the great info
Glad you like them!
Great information. Thank you
Thanx! You solved my problem.
Thank you that was very very informative you are a great teacher thank you
Great info, simple and informative. Thank You!!
your videos have shown and taught me so much, in the past I would've taken it to the marine shop for simple things, and for that I'd just like to say thank you!
Thanks mate, glad the videos have got you working on your own motors more. :)
Excellent instructor
Thank you. You just saved me a lot of money.
You're welcome, great to hear that. :)
You are my go to for sure this video is gonna pay big dividends tomorrow thanks
Thanks for the info. Ran into the same problem. Didn't realize that they are not self priming.
Thank you so much by doing this it's working for me.
Hey thanks; cured my headache!!
Another great tip thanks
No problem 👍