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Muskie Fishing -> Muskie Boats and Motors -> Question about water pump
 
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Message Subject: Question about water pump
pikemagnet
Posted 12/8/2009 6:27 PM (#411613)
Subject: Question about water pump


I was on the lake and stopped to get food at the bar. Sat inside for about 45 mins and when I got done and got on the boat had to use reverse in less than a foot of water to get the boat out and forgot to trim the motor up before I cranked her on(there was a lot of junk on the bottom that got kicked up)? After that I could not get the motor to pee?

My only thoughts were maybe some water froze inside the hose keeping it from working properly. Or the water pump sucked a bunch of the nasty crap off the bottom of the lake? Is there anyway to check without hurting the motor? And if it did suck some stuff up is there any tips on how to get it cleaned out.
This Newbie is greatful for any ideas!!!
esoxfly
Posted 12/8/2009 6:33 PM (#411614 - in reply to #411613)
Subject: Re: Question about water pump





Posts: 1663


Location: Kodiak, AK
I'm guessing you sucked something up. The heat from the engine should be enough to keep the flow going. But if you store it inside, turn the heat on and let it drain and check it the next day.

My guess is injestion. What kind of motor is it? Check your inlet screens on your lower unit. Take a coat hangar or something along the lines of .040 wire and GENTLY run it up your "pee" hole (ouch!) and see if something is lodged in there. That's the easiest thing to do. Beyond that, there's a few places crud can collect- poppit valves, theromstats being likely candidates.
Lone Stone
Posted 12/8/2009 7:35 PM (#411623 - in reply to #411613)
Subject: Re: Question about water pump




Posts: 477


Location: Iowa
I have actually blown air backwards through the "pee" hole while on the river before to unplug it. Probably looked a little funny doing it, but you do what you got to do when on the water!








Edited by Lone Stone 12/8/2009 7:36 PM
pikemagnet
Posted 12/8/2009 9:28 PM (#411644 - in reply to #411613)
Subject: RE: Question about water pump


The motor is a mercury 115 elpto. I used some 80 lb mono line and feed it up thru the water outlet and there did seem to be some green junk that started to break up and come out but it was a very small amount(not enough to clog it up in my opinion and that was without the motor running) so i thought maybe if i put some muffs on the motor and did the same thing it might force what ever out easier.
Thanks for the replies I guess i will try the wire and see if that gets anything else out.
If the water pump died would it show signs ahead of time or would it just give out? The reason I ask this is because until this time everytime the motor turned over the water would start flowing nicely right away.
Thanks again
Cowboyhannah
Posted 12/8/2009 10:30 PM (#411659 - in reply to #411613)
Subject: Re: Question about water pump





Posts: 1460


Location: Kronenwetter, WI
If you have any 100 lb leader floro, that is a bit more forgiving than wire and larger diameter than the mono....I've used in past with some success. Good luck
esoxfly
Posted 12/8/2009 10:31 PM (#411660 - in reply to #411613)
Subject: Re: Question about water pump





Posts: 1663


Location: Kodiak, AK
Water pumps don't "die" unless you burn them up and they completely seize and fail. They're rubber impellers in a housing, and that's it. They show signs of going bad when your water pressure on plane starts to decrease. Getting sand in them and scoring the housing can ruin them, but they'll still put out some water. If you stirred up all the crap, I'm guessing you got some algae on a poppit valve or lodged somewhere in your water jacket.


Edited by esoxfly 12/8/2009 10:34 PM
pikemagnet
Posted 12/8/2009 10:51 PM (#411667 - in reply to #411613)
Subject: RE: Question about water pump


Thanks everyone for your input...Just trying to learn the ways and get a better understanding of how these things work..
Esoxfly how would i go about getting the junk out of where you are talking about?
pikemagnet
Posted 12/8/2009 10:54 PM (#411668 - in reply to #411613)
Subject: RE: Question about water pump


Oh and i forgot to add that im an idot i was using 80 floro not mono
esoxfly
Posted 12/9/2009 12:12 AM (#411672 - in reply to #411667)
Subject: RE: Question about water pump





Posts: 1663


Location: Kodiak, AK
pikemagnet - 12/8/2009 11:51 PM


Esoxfly how would i go about getting the junk out of where you are talking about?


I'm not familiar with that motor, but thermostats and poppit valves are both replacable components, which mean they're removable. Find them, remove them, inspect and clean them, reinstall.
Landry
Posted 12/9/2009 3:03 PM (#411841 - in reply to #411672)
Subject: RE: Question about water pump




Posts: 1023


I would guess that it will be a simple fix. My old motor did this once. The muffs seemed to clear it up. I doubt that the thermostat will be the issue. Use the muffs - that may work. Force water, not too hard backwards through the pee-hole, (outlet). If water flows out with the muffs then there is no clog anymore. If it won't pump water when running in water then you may want to replace the impeller in the pump housing. That is a very easy job. I am not handy and my friend and I have done it on 2 motors. The impeller and new gasket for the pump is very cheap. I bought good repair manuals for my motors and they walk you right through it, with pics.
If a new impeller doesn't solve it then the thermostat may be your next step.
Hope this helps - don't just rush it to a shop. I got a quote on an impeller replacement and it was 150 bucks. I did it in about an hour for about 20 bucks! Find someone handy with tools to help you and pass him beers:)
Landry
esoxfly
Posted 12/9/2009 3:32 PM (#411851 - in reply to #411613)
Subject: Re: Question about water pump





Posts: 1663


Location: Kodiak, AK
Pikemagnet- Did you have pee when you turned the motor on in the shallow water, or did you only notice you didn't have pee after you'd run it for a while? I was thinking you started it up normally and it ran fine and then stopped peeing. Reading that you forgot to trim it up, I'm under the impression that the motor was down in the water dragging bottom. I ask because if you were that shallow and had the motor up high enough, where the pump was above the water line, you may indeed have burned the pump. Those pumps are not self-priming and they have to be at or below the waterline to get water into them. After they're primed, you can run them on plane, which bring the pump above water. But if you ran the motor without the pump priming, then you did likely burn the pump. A pump that ran hot would still pump water after you primed it (albeit at low PSI), but I saw one once where the actual housing melted and a chunk came off and got up into the uptake line and stopped flow. In that case, the motor also suffered damage from overheating; the head warped.

Edited by esoxfly 12/9/2009 3:34 PM
Top H2O
Posted 12/9/2009 3:39 PM (#411853 - in reply to #411841)
Subject: RE: Question about water pump




Posts: 4080


Location: Elko - Lake Vermilion
I replaced 2 impellers in the last 3 yrs due to sucking up muck...... the 2nd one wasn't the problem, but the poppit valve was plugged....unplugged the poppit valve and haven't had any more issues.
It is wise to replace the impeller every 2 years if you put a lot of hrs in shallow water/lanches.

Jerome
pikemagnet
Posted 12/9/2009 4:56 PM (#411865 - in reply to #411613)
Subject: RE: Question about water pump


The motor was turned off for about 45mins so it was cold when this happened. The intake area was below the water line cause it was peeing fine when I started it then I had to put it in reverse cause someone blocked me in and the motor was down and it kicked a bunch of junk up. Right after that happened I noticed the pee strem was not like normal. So I shut the motor down and fished thinking it might help it but then it wouldn't pee anymore
esoxfly
Posted 12/9/2009 7:17 PM (#411889 - in reply to #411613)
Subject: Re: Question about water pump





Posts: 1663


Location: Kodiak, AK
OK then, if you were peeing originally, the pump was pumping. I guess it's possible you clogged the intakes so much that you starved the pump, and it stopped pumping, but my guess is still ingestion of crud and blockage.
Schuler
Posted 12/9/2009 8:03 PM (#411900 - in reply to #411613)
Subject: Re: Question about water pump





Posts: 1462


Location: Davenport, IA
Sometimes when my motor quits peeing I find that there is very little stopping it from doing so. I can take out a tiny amount of weeds w/ a coat hanger and have it working again.
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