The Ford Barn

barkleydave · 03-31-2020, 08:08 AM

All good areas to check. Question: are you using float-a motor mounts? If so do you have a ground strap from your battery to the transmission to insure a solid engine ground?

katy · 03-31-2020, 11:33 AM

You could try a temporary ground wire from the screw that holds the condensor in to the body or frame somewhere.

Mike Peters · 03-31-2020, 12:50 PM

Some years ago the distributor cap body (where the brass spark plug connectors attach) shorted out internally on my AA truck. This caused cross firing between various cylinders, resulting in much back firing. Sounds a bit like your symptoms, although your back firing is intermittent. I put a different distributor body on the truck and it ran fine. If you have another distributor body, try it on your car and see what happens.

03-31-2020, 08:08 AM	#21
barkleydave Senior Member Join Date: Oct 2014 Location: Kentucky Posts: 502	Re: grounding distributor All good areas to check. Question: are you using float-a motor mounts? If so do you have a ground strap from your battery to the transmission to insure a solid engine ground?

03-31-2020, 11:33 AM	#22
katy Senior Member Join Date: Jun 2015 Location: Red Deer, Alberta Posts: 5,046	Re: grounding distributor You could try a temporary ground wire from the screw that holds the condensor in to the body or frame somewhere. __________________ If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn!

03-31-2020, 12:50 PM	#23
Mike Peters Senior Member Join Date: Aug 2012 Location: South East Wisconsin Posts: 1,279	Re: grounding distributor Some years ago the distributor cap body (where the brass spark plug connectors attach) shorted out internally on my AA truck. This caused cross firing between various cylinders, resulting in much back firing. Sounds a bit like your symptoms, although your back firing is intermittent. I put a different distributor body on the truck and it ran fine. If you have another distributor body, try it on your car and see what happens.