12371 
Member
  
  
   | Joined:  | 09-22-2006 |  
   | Location:  |   |  
   | Posts:  | 17 |  
   | Status:  | 
 Offline 
 |  
 
 
    | 
   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. 
 
    |