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35 hp Force overheat WOT

R

Reagan

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This motor is a recent repower

This motor is a recent repower and it gets hot in about 1 minute of wot and starts to blow a cloud of steam instead of a stream of water. When I slow down the stream of water returns to normal. I pulled the lower unit to find a normal supple impeller and a clean pickup tube. This motor does feel extreamly hot when the steam is rolling behind the boat. The tiny screens where the intake is are clean as well. If any one has a helpfull tip I would thank you.
 
"Could be head gasket, they ne

"Could be head gasket, they need replacing every 3-5 years, you can check thermostat too."
 
Thanks Andy;Where is the therm

Thanks Andy;Where is the thermostat on this thing and is it anything like the auto thermostats.
 
"I found out my problem Dave a

"I found out my problem Dave and it's a BIG one
I have a 20" shaft motor on a 25" transom boat
That causes the water intake to take on air when the boat is at WOT
Hope yours isn't the same, as I'm looking at a motor swap}"
 
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