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Classic/Antique Car Repair/Cylinder 3 and 4 run hotter?


Hello Jack, is it true that cylinder 3 and 4 run hotter in a Model A engine? If it is true is there anything I can do to prevent the head gasket from being damaged? Many thanks and greetings from Germany. Regards Gernot

I have never heard of that.  If they run hotter, it's not by much.  Don't worry about it.  Your car probably overheats.  Most do, due to a clogged radiator.  If you can run 45 mph for a straight 10 min. without overheating, then you have a good system.  If you can do that, then your head gasket will be OK.  If not, search youtube for "jackbahm" and watch my video about overheating.  Good luck.  jack

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jack bahm


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


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

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 and you will find them. Also, go to and search for "jackbahm" and you will find over a hundred videos. Many about the Model A and our outings. jack

"More than you need to know about cars." Just a small book for Car Nuts. "Model A Ford Tips and Hints" "Get A Horse" (What to do when Henry's Lady quits on you.) or Snyder's Antique Parts. "Engineering Stuff" (For the Kid who likes to take things apart and get them back together). Kids book for ages 10-16. 2012 Many Model A movies that can be found on

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. Go to this site for my Model A videos.

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