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Classic/Antique Car Repair/1967 289 spark problem

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Expert: - 11/18/2008


Question
We have had the Pertronix ignition for a year. Seems to be missing on a cylinder (or more) once warmed up. We replaced the dist cap, plugs, and thought it was fixed. Ran great for a day, then mystery missfire begins. One old plug looked like it had not been firing for a while when we replaced them. Think Pertronix is failing?, or a bad plug wire (those are lees than year old).

Answer
I have no idea what you are talking about.  You put this system on a Model A????  
Sound like it's a heat related problem.  Check to see what is near the exhaust system that could get hot and warp or stop working.  The electronic box that controls the system could go bad when it gets hot.
Sorry, but I am a Model
a guy and don't know your system.
jack

Classic/Antique Car Repair

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jack bahm

Expertise

Only repair type questions on the 1928-1931 Ford Model A.

Experience

Owned one when I was 15 yrs old, and now have owned 5. Still own and play with 2 of them.

Organizations
Oakleaf region of MARC. Model A Restorers Club. I have put several Model A videos on the Oakleaf site that may be of help. Things like how to start the A, how to Time it, how to troubleshoot it.. Go to oakleafregion.org and you will find them. jack

Publications
"More than you need to know about cars." Just a small book for Car Nuts. Blurb.com "Model A Ford Tips and Hints" Blurb.com 2010 Many Model A movies that can be found on youtube.com/jackbahm

Education/Credentials
BSME LSU, 1958, Masters of automotive engineering from the Chrysler Institute of engineering, 1960, MBA Mich State, 1976. Worked as an engineer at Chrysler from 1958 to the end of 1991.

Awards and Honors
Two patents while working in auto industry.

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