And I thought I was the only one with issue. I also have a 87 Bayliner that does the same thing. I have replaced the impellar as well, and it still over heats. I have not had the boat long, and it is my first boat...If you get your issue fixed, please let me know...
Jun 13, 2010 Rating
overheating problem by: Anonymous
i will try to keep this short but there are a few problems it could be
1. your thermostat it would be the cheapest to fix
2.the radiator could need to be flushed out
3. water pump alot of times with the water pump it will have a drip under the water pump but i have seen them not drip at all.
4. i have also seen the radiator baffles fall out and that would cause the air to blow right threw and not give the air enough time to cool the water and the higher speeds are pushing more air threw and cooling it
there are only really 5 tings that can make an engine overheat let me know what fixes it