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My friend has a V6 driving an OMC and at high speed she overheats. Drop back below 2500 rpms and she cools down fast. It has a new engine put in last season and has done this ever since.
Thanks for your help.
I wonder if you don't have old impeller bits stuck in a cooler. Unhook the hose at the top of the transom assembly, and unhook the seawater feed at the thermostat neck. Run a garden hose through the thermostat end and see if any chunks flush out the other side.
Thought that it might be some restriction like that. Thanks for telling me how to flush it out. He's out fishing now so we'll try that as soon as we can.
If any one else has any other suggestions please post them.
Thanks again
Raw water inlet hose, the one that goes from the pivot housing to the transom, ok unril the boat comes on plane and the hose comes out of the water, a wild guess if all the basics check out.
