No water to engine?

[mondos829]

boat was over heating so i took the thermostat out. no water is getting to the housing. so i check the raw pump its fine. and the pipes are clear through from the strainer to the pump (no clogs).

Any idea?

[Double D]

What does your impeller look like? That's what pulls the water into the engine.


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[JimN]

How old is the raw water pump impeller? If you don't remember when it was installed, change it. You checked/cleaned the oil cooler, right?

[mondos829]

impeller is 2 months. oil cooler is clean

[mikeg205]

are you getting a good seal at the strainer? None problem if seal is not good...

[bturner2]

Check valve on the hull fitting open? I managed to bump mine partially closed while cleaning the bilge one year. Drove me crazy trying to figure out why the boat was running warm until I stumbled across it while tracing the flow back to the source.

[JimN]

Look in the thermostat housing cover- the hole forward of the thermostat location may have a chunk of impeller stuck in it. I have seen this on several engines that were overheating.

[Lumbergh]

Looking at your picture, I would replace those rusted thermostat bolts.

New SS at Lowes or whatever.

Shearing one of those can make for a bad day.

[Cloaked]

Raw water pump has a specific direction that it has to be replaced after removal.

[mondos829]

impeller it was.