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Old 02-26-2015, 10:25 PM
calebsurfs calebsurfs is offline
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Overheating diagnosis

Hi, this is my first post to this forum but I have found a lot of answers just searching here in the past. My 1969 Columbia 28's atomic 4 has been overheating the last couple times I have motored out of the slip. Very little cooling water is coming out the back.
I removed the water pump, which appears to be an Oberdorfer 202, and the rubber impeller is intact. I ran bucket water through a hose to the engine, and water was not circulating, though the hose has cracks and i doubt the pump had a good seal for suction. When I hooked the hose up to the faucet and gave it a little bit of pressure I got water circulating out the exhaust.
I was planning to suck the water lines with a shop vac and see if anything came out but they look pretty good. Should I just spring for a new water pump. Does the water pump simply need some fresh grease? Not sure where to go from here, I will look forward to your responses.
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