Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 1970 Olds 455 not sparking
View Single Post
  #18 (permalink)  
Old 06-26-2012, 05:58 AM
67Mustang Al.'s Avatar
67Mustang Al. 67Mustang Al. is offline
Registered User
Last photo:
Join Date: Jan 2009
Location: Tasmania, Australia.
Posts: 433
Wiki Edits: 0

Thanks: 2
Thanked 6 Times in 6 Posts
Points operation in Volvo 4 cylinder dist.

Just snapped a shot of a Volvo distributor to show the spade connection on the side . The spade connection "MUST" be insulated from the body of the distributor and connects inside to a black wire which is connected to the moving arm of the points .
The moving arm of the points are insulated at the pivot with a nylon bush. When the points close the coil builds up a charge and then when the points open the field coils collapse in the coil and fire a 30k volt spark out of the coil top to the dist. cap centre . Points are basically a ground switch
The fixed arm of the points are earthed to the base of the distributor.
If you connect a positive wire to the side of the distributor you will fry stuff from that point back through the wiring.
Attached Thumbnails
Click image for larger version

Name:	Photo025.jpg
Views:	259
Size:	286.9 KB
ID:	66333  

Last edited by 67Mustang Al.; 06-26-2012 at 06:03 AM.
Reply With Quote