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Re: Pertronix questions

To: "Bob Howard" <>, <>
Subject: Re: Pertronix questions
From: "Telewest \(PH\)" <>
Date: Mon, 14 Oct 2002 16:13:37 +0100
A fluctuating tach needle indicates that the pulsing of current through the
coil is not consistent, hence the fluctuating idle.  Was it OK with points?
If so go back and if it is still OK there is a problem with the Pertronix or
its installation.

----- Original Message -----
From: "Bob Howard" <>
To: <>
Sent: Monday, October 14, 2002 3:49 PM
Subject: Pertronix questions

>    This weekend I installed a Pertronix in the 25D distributor of my
> 72MGB-GT.  It was easy to do, but now I understand why there are so many
> questions about installation from listers--the instructions are quite
> clear and informative, and leave out only one significant piece of
> information.
>    But to my questions---1) since installation, with timing set per the
> manual, 16 degrees BTDC @ 1500 rpm, the engine won't idle. It just
> stalls.    It runs OK, given enough throttle, but why should it now not
> want to run at the idle setting at which it was quite happy before?
>    2)  now the tach needle swings, about 200 rpm +/- at 2500 rpm, 300 rpm
> +/- at 3000 rpm.

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