Yes, those carbs are TERRIBLE and that pump is very problematic. The impellers are not easy to find and are quite pricey – eBay may be your best source.
And the prop tube won’t work really well in a test tank even if the prop is on there.) If the water splash feature is not functioning, you’ll cook the lower seal and bearing and that may cause some of the problems you are experiencing. (If not then it has a tube aft of the prop for the same job – not having the prop is like not having the water pump. Likely your problems are elsewhere many of those motors had a waterpump in the lower unit that splashed water on the lower crank seal to keep it cool. I’m no expert on them but I’d say your compression was stellar. Remind me to leave alone the "froze engines"! Too great, causing havoc with it starting and working the impulse Is it possible that my compression is okay, but the piston to cylinder clearance What is optimal compression for these engines? It’s a Tecumseh powerhead and carb that has the little bitty Throttle and choke it briefly to keep to keep it running.Įngine was not overheating that I could tell. It wanted to die out below half throttle, but sometimes I could give it more I could only get it to start in the testīarrel with the prop off. Had to hone cylinder more than I hoped being it was froze up. New rings, engine seals, points, condenser, etc.
My uncle gave me this "froze up" outboard and said… "I sure would like to hear it run"
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