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gibbdo · 10-20-2018, 02:40 PM

There are many causes to a backing fire on the Model A. The two I recently discovered was a loose coil cable. Be sure the cable from the coil to the distributor is seated tight in the coil. if it is loose it can arc causing a backfire. the second was a badly clogged carburetor. The gas had gone bad for sitting too long and gummed everything up. I cleaned the carburetor and replaced the gasket where it bolts to the intake to make sure I had no leaks. That seamed to solve the problem for me.

10-20-2018, 02:40 PM	#49
gibbdo Junior Member Join Date: Nov 2010 Location: Walla Walla, WA Posts: 5	Re: Terriable backfiring There are many causes to a backing fire on the Model A. The two I recently discovered was a loose coil cable. Be sure the cable from the coil to the distributor is seated tight in the coil. if it is loose it can arc causing a backfire. the second was a badly clogged carburetor. The gas had gone bad for sitting too long and gummed everything up. I cleaned the carburetor and replaced the gasket where it bolts to the intake to make sure I had no leaks. That seamed to solve the problem for me.