View Single Post
Old 06-24-2010, 05:20 PM   #9
Purdy Swoft
Senior Member
 
Purdy Swoft's Avatar
 
Join Date: May 2010
Location: Alabama
Posts: 6,781
Default Re: Rotor gap to distributor body terminals

I agree with Mike K rotor gap is critical. Most of the reproduction distributor caps have TOO close of gap and the wider the gap the hotter the spark, to a point. If the gap is too wide you will have early coil failure. Les recommends a gap of .025, this is a safe gap as far as coil life goes but a bit conservative. I run a .035 gap with a hotter spark . I have ran one of my model A's with an 81 year old original coil and a .035 rotor gap for 10 years and NO problems. I also set the original style points with a gap of .022 and set my Champion W18 spark plugs with a gap of .035 . This all makes a big difference in the performance.
Purdy Swoft is online now   Reply With Quote