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View Full Version : tested boat,bad overheatng probem???


gregr1971
06-12-2005, 07:21 AM
i got my engine in and plumbed,all guages hooked,went for test run,the damn thing is overheatng FAST,i have excellent flow from the pump,no thermostat,and it gets to 250+ less than 150' from ramp,i am running zommies temporarily ,could that be the problem?????
gregr1971
06-12-2005, 07:25 AM
oh, i forgot to add,i am putting plenty of water to the engine,but i would think it has to come out to circulate,could that be a problem?, if so how do i get it out ?,and where do i run it?
cave
06-12-2005, 07:31 AM
You mean the water doesn't exit the motor?
gregr1971
06-12-2005, 07:35 AM
nope,i was thinking of removing the two plugs on the rear corners of the intake and plumbing them over the rear of the transom for a test????
cave
06-12-2005, 07:39 AM
The water must exit the motor. You have a closed system right now so the water just gets hotter. The water has to exit the engine. Unless you have a radiator hooked up.
Mohavekid
06-12-2005, 07:41 AM
You have no water exiting the motor?
I assume you are using the jet pump to provide water to the motor. Do you have a gate valve on the supply line? It it closed?
Do you have a dump line to get rid of the excess water that you're not running thru the zoomies?
gregr1971
06-12-2005, 07:45 AM
going to plumb the rear coolant passages on the intake into a tee,i assume a 1/2" hose will work for now,and go pay another 7.00 ramp fee and try it again,i have worked my tail off night and day for a week and i never thought about the cooling system,i have always ran logs......i admit i f****d up,i guess i was too much in a hurry.
Beer-30
06-12-2005, 07:46 AM
This almost seems like someone being funny.
cave
06-12-2005, 07:48 AM
Read this it may help simalar but different problem (http://www2.***boat.com/forums/showthread.php?t=79840&highlight=overheating) Kinda shows a diagram of how the water lines are run. There are some good responses from the guys here.
gregr1971
06-12-2005, 07:56 AM
i see, but i did remove the water pump from my "car" engine, it honestly never crossed my mind about the system being closed.
Floored
06-12-2005, 08:16 AM
you might have an air lock. when I launch I have to bleed the air out of the pump or it wont flow the water. Big air bubble in top of pump. have a water valve inline(open spigot) to engine and I open it until the air bleeds and the water flows out( engine off) then fire up and go.