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Re: 1945 CJ2A Quits after Running 15-30 Minuets!

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Posted by Bill Goodwin on May 21, 2005 at 23:20:27:

In Reply to: Posted by on May 21, 2005 at 20:48:09:

1st I would agree not enough information. Once a engine is running it only need spark-air-fuel to keep running. (Ok I know about compression, oil, timming ect) But since engine re-starts cold then I'll stick the the top 3. Unless choke is closing then you have air. If coil overheats then you have no spark. easy check with a timming light-no spark-no flash. That leaves fuel. Look for fuel line colapsing-fuel line too close to exaust system and boiling fuel causeing vapor lock. In correct float level adjustment or stuck float in carb. Remote but possible hi-speed jet bad or trash in carb. If you blow out the fuel lines and that cures it then you have trash in the fuel tank. Fartherst possible cause is no vent in fuel tank. I would look close though at the fuel line too close to the exaust since it happins when you reach operating temp. Don't forget the damper in the exaust manifold. Bill

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