Timely thread. I have reason to suspect my vac advance is faulty. I was just the other day looking at prices of the replacement units and they were 2x what I "guessed" they might be.

As I look for used or NOS replacements...did the vac advance EVER change during the 216/235 era? Some parts listings span 1937-1962. Others I see seem to be a more defined range of years.


1951 3100