backfiring through the carburetor???

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08-23-2011 | 08:30 PM

#21

FIXX

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From: Between A Womans Leggs in IL

fixx

Quote:

Originally Posted by AllWaysThinking

Ok I just got around to doing a compression test all the cyl where 121 but one and it was 121.. I am guessing that it's low for a 508 so it looks like it need rings!! Would low compression be making it pop?

the compression is low because its a blower motor..did you test with the throttle blades open? also like friff said,valve no seating,roken valve spring,mushroomed valve...did you get the motor warm first?

08-23-2011 | 08:54 PM

#22

AllWaysThinking

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sorry one was 126.....motor wasn't warm and throttle blades where not open... I had to take the exhaust off to remove the valve cover so I would have to reinstall the exhaust to run it.

Last edited by AllWaysThinking; 08-23-2011 at 09:38 PM.