Re: My Boat Stopped Peeing
No! I'm still having a problem. I went and got a new impeller and kit today but have not installed it yet. I will try again after that. It just does not make any sense to me, the only two things that can stop the pee is the impeller or the thermostat right? Am I wrong here?
1. Don't get too cocky about pee. Those of us over 50 know just why it's called that. Picture this, cold morning, 4 outboards at the dock all peeing and yours is the last one. Odds are you don't make it to your boat without grabbin something.
2. The water pump sends water up the water tube to the power head via the exhaust plate. A blown exhaust plate gasket will cause you to loose water pressure by sending the water intented for the powerhead back out the exhaust tube. Very hard to detect this without a water pressure gauge except that the power head will over heat and you will rattle the writstpins at about 3000 rpms because of the excessive back pressure.
HOWEVER ____ The most common cause, and I do speak from experience here, is a damaged or misaligned connector sleeve in the lower unit. From the top of the water pump outlet port you should first have two "O" rings then the connector sleeve. Your connector sleeve should be the black rubber one and not the white plastic type.
If this sleeve is misaligned or split (mine was split) then the high volume pump will fill the lower unit with water before it builds enough pressure to force water up the water tube. You're water pressure at the pee tube will be less than 1lb if it even registers. At 4000 rpm you might see 3 lbs. These pumps are capable of producing up to 12lbs of pressure and 2-3 lbs at idle is supposed to be normal.
If you don't get this condition fixed, you'll end up with water in #4 and you'll be replacing the lower main seal. Would you like pictures?
As a side note and for the doubting Thomas's. These motors are 2x4's and run on two cylinders up to around 1800 rpms. They blow more water into them to keep the lower cylinders cool. This combined with a starved lean condition keeps them in a "too lean to burn" state at very low RPM's.
These motors were touted as the fisherman's dream, a big motor that will troll all day.
