[Healeys] Possible explanation on the Petronix positive ground and Smith loop style Tach

[Bob Spidell]

Been many years since I put in a Pertronix, but I seem to recall adding an 'extra' loop on the inductive pickup. 

Bob 


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Bob Spidell - San Jose, CA 

----- Original Message -----


Hi Bob, 

I ran into this when I first installed my Pertronix on my positive ground BJ8. 
I found that the Pertronix doesn't draw as much current as points and 
therefore does not create enough of a magnetic field with only one loop on the 
back of the tach. I ended up splicing in some thin wire so I could make 3 or 
4 loops where there would normally only be one and that made the tach very 
responsive and accurate. 

You might try this. 

Cheers, 
Chris 
BJ8...in the final bodywork stages