mercury 40 hp

[muskyhunter1234]

Got a 40 hp 2 stroke, it is a 2001 model that has not got 10 hours on it, bought it with tracker boat for a super deal, went to start it and it started just fine but no water came out of the top hole, we had it in a large tub of water, is the pump shot or is there a thermostat that we did not let engine warm up enough

 

[Barnacle_Bill]

Re: mercury 40 hp

Could just be mud daubers have taken up residence in the line. Run a piece of heavy plastic line like used on a weed wacker down it.You should be able to clear the obstruction if thats what it is. If the motor has sat for several years check the FAQs for "awakening a sleeping motor". Lots of good advice there.

 

[muskyhunter1234]

Re: mercury 40 hp

thanks for the tip, I assume that you mean running a string down from the outlet hole at top of engine

 

[Barnacle_Bill]

Re: mercury 40 hp

That would work. When I get them I just start the motor with muffs and start jabbing the string in the outlet and let the water wash it out.

 

[roscoe]

Re: mercury 40 hp

Since the motor is new to you, it is time to put a new water pump impeller in.
Doesn't matter how few hours are on the motor. Impellers can fail quickly if run out of water or through a sand bar.

 

[muskyhunter1234]

Re: mercury 40 hp

Thanks, for the info, I have decided to have the water pump impellor replaced, shound i also have the thermostat replaced at this time?