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8N Running(or not Running)Problem

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Wayne

03-06-2001 16:51:06




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My 48 8N won't run unless I have the choke pulled out. After about 10 minutes, I can push it in. But then it labors and eventually stalls. The carb has been rebuilt, complete tune-up, and still no luck. Any ideas???




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Fast Ed Ohio

03-06-2001 21:02:27




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 Re: 8N Running(or not Running)Problem in reply to Wayne, 03-06-2001 16:51:06  
Wayne , It looks like Dell has covered all the bases , A compresion test will tell the tale. Good luck.



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Dell (WA)

03-06-2001 17:26:40




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 Re: 8N Running(or not Running)Problem in reply to Wayne, 03-06-2001 16:51:06  
Wayne..... .You may not like my answer, but based upon your description of your problem, you probably already know the answer. You have a tired engine and it needs a rebuild. Take a dry and wet compression check on all 4 cylinders. Minimum 90 psi per Ford manual.

Either that, or you need to recheck your carb rebuild. You are running lean and could have leaking carb manifold gaskets or throttle shaft felt seal.

By pulling the choke, you enrich the mixture enuff so the engine runs when you start it up. After the engine warms up enuff it will normally run except in your case the carb is still lean and eventually dies.

Altho, with a frontmount ignition, you could also have a "bad" ignition coil. Unfortunately, front mount coils are not as "robust" as we'd like 'em to be. It generally takes about 15-30 minutes for a bad coil to make itself known.

HTH..... ..Dell

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