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Ignition coil ground

Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=51649
Printed Date: November-21-2024 at 9:17pm


Topic: Ignition coil ground
Posted By: NeilMcG
Subject: Ignition coil ground
Date Posted: June-26-2024 at 9:44pm
'78 351 w/Pertronix e-conversion

Does the coil need its own ground wire or is it grounded to the block via the distributor?

I looked at the diagram here and I only saw two wires to the neg post: the tach and a black to the distributor.



Replies:
Posted By: KENO
Date Posted: June-27-2024 at 7:20am
It's grounded via the distributor

If you were to run a wire from the coil negative to ground your distributor wouldn't make any spark because the coil would never get to do it's thing and build up voltage and discharge itself to the plugs through the distributor.


Posted By: NeilMcG
Date Posted: June-27-2024 at 9:04am
Originally posted by KENO KENO wrote:

It's grounded via the distributor

If you were to run a wire from the coil negative to ground your distributor wouldn't make any spark because the coil would never get to do it's thing and build up voltage and discharge itself to the plugs through the distributor.

Thanks Ken. That makes perfect sense.




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