The Ford Barn

kenparker0703 · 11-18-2023, 08:10 AM

Coils an condensers and other components of teh distributor should not know the difference between number 2 and number 134. Have you checked for something like a foouled out number two spark plug.

Y-Blockhead · 11-18-2023, 10:46 AM

I have not seen it mentioned but have you checked for "Carbon Tracking" on the coil and the distributor body and rotor.

In a darken garage, start the engine and check for "leaks" on the coil and distributor. With a clear cap you can check inside the distributor body.

This is mentioned in the Service Bulletins, page 368, "Most Coil Troubles Due to Neglect".

katy · 11-18-2023, 07:26 PM

Is there no spark at #2? or is it not firing? Have you done a compression test on #2?

nkaminar · 11-19-2023, 08:01 AM

The distributor housing sometimes has internal shorts or open circuits. I know you tried a different housing. But just to make sure, measure the resistance between the #2 point inside the distributor housing and the connection on the outside for the strap for #2 plug. It should measure close to zero ohms, less than one ohm. You may need to file or scratch the point inside the housing to get a good contact.

Rob Doe · 12-18-2023, 04:12 PM

Any updates here, Todojo????

Replace the rotor with a known good one.

11-18-2023, 08:10 AM	#21
kenparker0703 Member Join Date: Sep 2018 Posts: 88	Re: Inconsistent spark plug firing; can't get all 4 to fire Coils an condensers and other components of teh distributor should not know the difference between number 2 and number 134. Have you checked for something like a foouled out number two spark plug.

11-18-2023, 10:46 AM	#22
Y-Blockhead Senior Member Join Date: Jul 2011 Location: Redondo Beach, CA Posts: 5,848	Re: Inconsistent spark plug firing; can't get all 4 to fire I have not seen it mentioned but have you checked for "Carbon Tracking" on the coil and the distributor body and rotor. In a darken garage, start the engine and check for "leaks" on the coil and distributor. With a clear cap you can check inside the distributor body. This is mentioned in the Service Bulletins, page 368, "Most Coil Troubles Due to Neglect".

11-18-2023, 07:26 PM	#23
katy Senior Member Join Date: Jun 2015 Location: Red Deer, Alberta Posts: 5,047	Re: Inconsistent spark plug firing; can't get all 4 to fire Is there no spark at #2? or is it not firing? Have you done a compression test on #2? __________________ If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn!

11-19-2023, 08:01 AM	#24
nkaminar Senior Member Join Date: Jan 2012 Location: Western North Carolina Posts: 3,913	Re: Inconsistent spark plug firing; can't get all 4 to fire The distributor housing sometimes has internal shorts or open circuits. I know you tried a different housing. But just to make sure, measure the resistance between the #2 point inside the distributor housing and the connection on the outside for the strap for #2 plug. It should measure close to zero ohms, less than one ohm. You may need to file or scratch the point inside the housing to get a good contact. __________________ A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past.

12-18-2023, 04:12 PM	#25
Rob Doe Senior Member Join Date: Apr 2021 Location: Central Illinois Posts: 498	Re: Inconsistent spark plug firing; can't get all 4 to fire Any updates here, Todojo???? Replace the rotor with a known good one. __________________ "It ain't what you know for certain that gets ya in trouble. It's what ya know for certain that just ain't so!"