Jonathan Pounsett Posted April 9 Share Posted April 9 Why is the wire between the coil and the fuse box a translucent resistance wire? What does it do that makes it different to any other wire? Quote Link to comment Share on other sites More sharing options...
cam.in.head Posted April 9 Share Posted April 9 the coil on a points type ignition system only runs at around 6-9v rather than 12v.the resistance wire keeps the coil voltage correct.once you operate the starter this voltage would fall lower but a bypass wire on the stater solenoid brings it up to full voltage ( which during cranking could be 10-11v) and this also give a temporary stronger spark to aid starting. this system only applies to a conventional points type distributor.if you ever fit an electronic ignition distributor from a gte for example then you need to run a constant 12v non resistive wire from the ignition switch. 3 1 Quote Link to comment Share on other sites More sharing options...
Jonathan Pounsett Posted April 9 Author Share Posted April 9 4 hours ago, cam.in.head said: the coil on a points type ignition system only runs at around 6-9v rather than 12v.the resistance wire keeps the coil voltage correct.once you operate the starter this voltage would fall lower but a bypass wire on the stater solenoid brings it up to full voltage ( which during cranking could be 10-11v) and this also give a temporary stronger spark to aid starting. this system only applies to a conventional points type distributor.if you ever fit an electronic ignition distributor from a gte for example then you need to run a constant 12v non resistive wire from the ignition switch. Thanks @cam.in.headfor a very informative and interesting reply. I knew someone in the club would know the answer. Quote Link to comment Share on other sites More sharing options...
cam.in.head Posted April 10 Share Posted April 10 youre welcome. 1 Quote Link to comment Share on other sites More sharing options...
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