[foothill gary]

why am i not seeing water come through the pee hole. yea i did change the impeller and tested it with a drill on the drive shaft. pumping then.. also ran a water hose into the copper line in shaft ---water came out of little pee hole--both directions---. NO CLOGS ANYWHERE THAT I CAN SEE. What"s up????? just spitting hot gas and smoke. NO the impeller is not ruined yet I checked it 4 times. AND--- for sure--" installed it right"-- into the copper tubing going up the shaft. thanx-----GARY........

[albertaborn]

i have the same problem i have done all the same things and its driving me insane.ive even went to the point of putting it all together w/o pull start and putting a drill on the flywheel w/o spark plug and it doesnt work but take the power head off and drill on the drive shaft and it works.i got a new impeler too.i can squeeze water up the tube with the head on and it works.its like putting the head on fxxx it up.its also like exhaust maybe gets into the system.ive put new gaskets with a skiff of gasket maker and nothing. im out of ideas and ready to buy everything for the cooling system

[7920hpMercury]

Here is a thought for you to try assuming water pump is pumping & water passages are clean. The intake on these motors is through a little screen on the underside of the anticavitation plate right above the prop. If your idle relief holes which are right below the lower cowling in the rear are plugged up with oil/exhaust goop, then when you are idling, all of the exhaust goes through the prop hub and bubbles up into the water intake. This is particularly noticeable when you crank it in a barrel. If you take it out and run it in forward in a lake, then the exhaust is blown back and the water picks up and flows fine. If this is the case, then you need to pull the powerhead and clean out the idle relief holes. Or you might can get the holes cleaned by using some solvent and rodding it out and not have to pull the powerhead. Good luck and hope this might help.

[albertaborn]

i thought the exhaust reliefs where under the powerhead.for example if i have the lower half off and squeeze water up the copper tube i can see water come out these reliefs. at first this seemed strange as i thought all the water should exit oly by the pee hole.im sure the reliefs are clean as ive had the power head off 20 times.every thing seems fine when i pump water up the tube or when pump up with a drill with the head off,just when its all back together it dont work.it seems like im getting exhaust out he pee hole but im not sure

[foothill gary]

cleaning out the releif holes with solvent and wire worked for water flow a little bit . Have to rev engine to get real water flow to happen. Still not coming out on ldle. Pulling power head???? Do I have to take the powerhead apart? Yes the relief hole was very clog up--- by the way.. Thanx.