Popping sound while shifting gears?
My Model A Town Sedan seems to be making popping noises when shifting from gear to gear. It seems to be coming from the engine area instead of the tailpipe but I am not sure. The car runs fine when it is cold but when it gets hot it starts running rough and doing this popping\backfiring sound. I have changed the condenser on the distributor, properly aligned the points, installed a new manifold and checked for leaks and had the carburetor rebuilt. The mixture screw seems to run best at 3\4 out. As a matter of fact, when I start to close it the popping\backfiring gets worse. This seems backward to me. Also, when installing the new manifold there wasn't a flange between the manifold end and the tailpipe. Since this is not there could it be creating some type of popping sound? Any thoughts? Thanks. JIM
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