Backfiring

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Apr 23, 2004 | 01:40 PM

andyjack

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Joined: Apr 2004

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Backfiring

Any suggestions? I have a 1951 Ford P/U with original flathead. When you let off the gas the it backfires. Tried adjusting the timing-didn't work.

Apr 24, 2004 | 01:00 AM

laynrubber

Laughing Gas

Joined: Apr 2003

Posts: 936

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From: La Ronge Saskatchewan

I don't know but i can give suggestions.........
Backfires out the carb or out the tailpipe ?

carb settings should be checked, maybe too lean
all timing checked......point gap, advance working ?, plug gaps
compression of each cylinder.
Keep us informed.

Apr 24, 2004 | 07:43 AM

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Joined: Mar 2001

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From: western N.Y.

Andy- I had this pbm on an old VW Beetle years back. Mixture was too lean. Adjusted carb to make it right and pbm was gone. tp

Apr 26, 2004 | 03:26 PM

andyjack

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Will give them a check--Thanks

Apr 30, 2004 | 01:55 PM

kevin69

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Joined: Jan 2004

Posts: 27

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From: sparks,NV

I have this problem with my 50 F-1. It is the points. They close so often and that is what causes the backfire. I have been told an electronic ignition will solve this problem.

Apr 30, 2004 | 05:43 PM

Jag Red 54

Logistics Pro

Joined: Oct 2002

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From: Valley Center, CA

I also vote for the points being the problem. Did you solve the problem? John

May 1, 2004 | 11:41 AM

kevin69

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Joined: Jan 2004

Posts: 27

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From: sparks,NV

John. I have not yet financed a electronic ignition. I will be getting the truck re-wired. So I am saving up for that. Will let you know about it when I do it.

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May 2, 2004 | 09:52 AM

kevin69

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Joined: Jan 2004

Posts: 27

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From: sparks,NV

I believe I had new points put in about a year ago. The backfiring was gone for awhile and now it is back,but only when the motor is cold. Also I have this diamond plated back bumper with matching side plates that the tail lights are incorporated into. Was this a factory ad or after market?