water problem

[bream master]

G,day 2 all.I hve a35hp johnson sea horse model 35el78.I took d boat out the other day and noticed at idle that there was no water coming out of pee hole and started 2 get a bit concerned.On the other hand when u put the motor in gear and give it a bit of momentum it pumps water with a beatiful flow or stream,its just in neatral that it starts 2 overheat.should i be incresing r.p.m at neatral or what do u experts suggest......cheers.

 

[ezeke]

Re: water problem

You (probably) need a new impeller.

 

[bream master]

Re: water problem

impeller and water pump are brand new

 

[Mas]

Re: water problem

1-idle set too low?
2-constricted cooling passages?
3-incorrectly installed impeller and/or grommets?

It's gotta be one of the three?

MAS

 

[bream master]

Re: water problem

yeah,i thought the idle was the problem initially,iwill muck around with it and c what happens.THANKS heaps

 

[tashasdaddy]

Re: water problem

if you pinched the gromet on the water tube, it will do that.

 

[Genonbamagirl]

Re: water problem

if you pinched the gromet on the water tube, it will do that.

This. If it was old and long run it may have some gunk in it but since it's new - you have a slight issue with water delivery somewhere. It should squirt hard all the time.

 

[James R]

Re: water problem

If there has been an impeller failure and pieces came off they could be blocking the waterways. Is the motor over heating? If not it could just be that the telltale is blocked.

 

[bream master]

Re: water problem

when d motor is in forward it squirts hard, and imean hard,put d motor in neautral and she squirts a little.

 

[Mas]

Re: water problem

Is the motor up to temp?

 

[fishinaddict]

Re: water problem

My stepdad has a mercury 25 hp, and it did the same thing. At idle very little water, rev it up pumped like a champ. He was certain it was not the waterpump b/c it was only 4 months old, but I convinced him to spend the 25 bucks and get a new impeller and sure enough after that it pumped like a champ . I am betting on an impeller problem.