MTFCA Forum

Rebuilding a couple coils for my own use, do any of you ever reuse the points &

Randall strickland wrote: ↑

Mon Aug 22, 2022 6:49 pm

Rebuilding a couple coils for my own use, do any of you ever reuse the points &

Yes, in fact old stock normally have the upper point rivet correct & dont need addressing.
If there is enough point face left after surfacing, you are good.

Cushion spring clearance between the rivet and the upper bridge should be around .005" , ( some references say .005 - .010" ).... Distance between compressed vibrator spring against the steel core and top cushion spring averages .030" to start on adjusting electrical values and for elimination of double sparking to end with distinct single sparks at 1.3 amp AC draw on a HCCT. Used points maybe reused, but you have to remember 1 will have a slight buildup and 1 point will have a slight depth that the buildup transferred from... So on installation, the points have to be placed together so they match up and then tightened in that position to work..... And you may have to rely on eyesight to adjust the gap. Capacitors usually have to be replaced. I've only had one set of coils, that came from a 1922 touring, that the capacitors actually passed the test, adjusted the electrical value and the car just purrs along

I just did a video on how to adjust coil points. Maybe it will help? https://youtu.be/zfXVIlIO_4Q

If the points have sufficient material, and the cushion spring is in good order, then yes. If the cushion spring has been incorrectly bent or the rivet damaged, it's very difficult to get correct adjustment. Another thing to watch out for is the actual point riveting - sometimes the point is loose and doesn't always make contact, even though it looks good.