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Old 12-27-2023, 09:43 PM   #124
Old Henry
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Join Date: Oct 2010
Location: Orem, Utah
Posts: 5,781
Default Re: 47 V8 ignition mystery

I know, I know, I hate this never ending story as much as anyone but I have just got to solve this mystery or die trying so I still need your help.

At least another clue has manifested itself:

Quote:
Originally Posted by Als48 View Post
Craig, Is there any way to tell if your distributor cap is seating properly? I had a cap once that failed to seat correctly and it caused the exact problem you are seeing. It seemed to be cocked slightly when attached, causing the rotor to not fire two of the cylinders due to an enlarged gap at some of the inner terminals. That would also cause the rotor to be too close to some of the other terminals, which might cause the rotor to make contact and loosen the brass tip, as you have seen. Possible?

Al Hook
Quote:
Originally Posted by Old Henry View Post
I had all of those same thoughts yesterday and will check that.
So, yesterday I replaced the gasket between the distributor cap and the distributor base. My old one was in pretty bad shape - all soft and lumpy and uneven. To my great surprise that fixed my problem. I drove 9 miles up the canyon, with all 8 cylinders firing without a skip no matter what I tried to duplicate the problem, all the way to Vivian Park where I turned around and headed back. I was elated, euphoric, thrilled, happy, composing the glorious post I was going to share as my final chapter in this saga as soon as I got home, until a few blocks from home when the grim reaper phantom raised its head again with all of the same old symptoms of cylinder #6 misfiring along with some others. I was devastated. How could it be??? It certainly turned me away from a wiring problem. I couldn't figure out how all wires could function perfectly for 17 miles then fail again identically to before I straightened the distributor cap.

Any ideas?
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