Home › Forum › Ask A Member › Air Cooled Outboard Overheating › Re: Air Cooled Outboard Overheating
Well, I couldn’t wait to get back into this motor. All the interest you guys expressed inspired me to put the motor in the test tank today. I tried to dismantle the lower unit and powerhead. I found that the drive shaft is seized at the crankshaft and at the jet impeller. Since I don’t have any spare parts I chose not to try and separate them. I did learn that the lower unit does not pump water up the exhaust. The rings and piston look great and the rings are nice and spongy. There was a little carbon in the exhaust, which I cleaned out. The Motor wouldn’t start so I dismantled the carb and found a little debris. The diaphragm was also a little stiff so I put a new carb kit in it. It has great spark. The motor is back up and running. It is no long running hot. It does seem to be sucking a bit of air and I’m afraid it may be coming from the crank seals. Until I find another Tecumseh based Outboard for parts I will have to live with it as is. It’s a novelty outboard that I don’t plan to run much. Thanks for all the opinions. I don’t have a good answer for the overheating. It could have been the carbon in the exhaust, the air leaning out the fuel mixture or both.
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Wayne
Upper Canada Chapter
uccaomci.com