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 Posted: 03-14-2008 06:46 pm
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12371

 

Joined: 09-22-2006
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 I've sent my speedo and tach to nisonger instruments for rebuilding.  Luckily I read that the only electric ignition system that they can calabrate to is a Petronix.  I've purchased a "classic" replacment tach which is very similar to the original but I'm not sure of the connection.  The car has the standard Green, black, white and white/slate.

The Nisonger instructions show:
Green:  fused power source
Black:  Metal ground
Brown/Grey: Trim off, not used
Red/White:  Light harness
White: only for electronic ignition-Connect to tach prot of ignition module.  Do not connect to a tach adaptor box.

Long story short.  I'm assuming green to green but anyone know which lead the "white" on the new tach goes to.  White/Slate or plain White?

Please add any relevent info.