The pertronix draws less current through the white wire looped behind the
tach than the points did. Less current, smaller magnetic field, smaller
current on the transformer secondary winding (inside the tach). Must
increase the field. Add an additional loop or two to the loop at the back
of the tach.
Cheers,
Chris
BJ8
----- Original Message -----
From: <Awgertoo@aol.com>
To: <healeys@autox.team.net>
Sent: Thursday, April 13, 2006 8:20 PM
Subject: Pertronix interfering with tach?
> I'm posting this for a friend of mine who is not a subscriber but
> described
> an interesting situation to me--he says that about the same time he
> installed a
> Pertronix unit on his BJ8 his tach started to indicate about 20% low,
> apparently at all speeds.
>
> Does anyone have any experience or suggestions here?
>
> Best--Michael Oritt
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