Ford 3000 Backfire thru Carburator Air Horn

starmeister · Oct 29, 2015

I'm servicing my Ford 3000 to repair from vandals. This old girl always ran good. I changed points, condenser, plugs and wires. Other repairs are unrelated. Upon trying to start I heard a loud POP! Looking closer I found the venting coming from the carburetor air horn. I read in other discussions this could be fuel mixture or vacuum related. Can someone explain in very simple terms how to confirm problem and point me in the right direction to repair. I'm a half blind and deaf novice so please excuse my mechanical ignorance. Thanks. :?

Den N Ms · Oct 29, 2015

Starmeister,Check the firing order,possibly have 2 plug wires crossed up.

rustyfarmall · Oct 30, 2015

Most likely the spark plug wires are not in the correct order. Worst case scenario, an intake valve is stuck open.

Jerry/MT · Oct 30, 2015

Check timing

starmeister · Nov 2, 2015

Fella's, that was it! I had wires two n' three crossed. She's running like her old-self. I need to start taking pictures when disassembling equipment. Thank you very much!

Ford 3000 Backfire thru Carburator Air Horn

starmeister

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Den N Ms

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rustyfarmall

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Jerry/MT

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starmeister

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