Re: Engine Backfired blewout muffler & resonator

Posted by Leeedy On 2020/11/22 10:38:47
Quote:

56PKRDGUY wrote:
Hello again. Thanks for the information on the distributor terminal insulator mine is fine.

I did check about fuel delivery. I have a inline fuel filter
from the tank going to the carburetor. It was old filled with
sediment from the tank really bad worst I have ever seen.
I just put a new one in.....

Could this have been my problem????


Yes, this very well could be your problem. Like my Continental, your engine might have been going through a series of running rich/starving for gas cycles. Thus the backfires.

With rusty sediment this bad in your inline filter you'll also want to check your carburetor inlet and float bowls.

Frankly at this point, I would very, very strongly recommend that you yank your tank and have it boiled out (at the very least) and sealed. Otherwise with rust this bad, you're only a moment away from more problems. I would also have the fuel line purged from rear attachment to front. Undoubtedly there has to be more crud in the line if this much is in the filter. And be sure to run a ream through the fuel line in the tank. The elbow on the pickup tube inside the tank is the critical point for clogging. Even when the tank appears clean, this little tube can be full of rust and debris.

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