A lot of guys use masking tape to transfer the mark.
Best,
Ray McCrary
"Speed is Life;
of course Luck and Altitude
are helpful, too."
----- Original Message -----
From: "Bob Howard" <mgbob@juno.com>
To: <spook01@home.com>
Cc: <amoyce@pol.net>; <mg-t@autox.team.net>
Sent: Saturday, June 24, 2000 8:30 AM
Subject: Re: Timing the Pertronix ignition
> Ray,
> That's good advice you gave Andy. TD's are static-timed, and they have
> only one notch on the pulley, at TDC. He will need to measure diameter
> of the pulley, calculate circumference, then work out the distance in
> inches that represents 32 degrees. I did this some time ago as a check
> on my distributor's advance. I worked it out, then cut a strip of plastic
> from the curved side of a margerine tub to that length, so that I could
> then put a spot of paint on the pulley. Sorry, I forget the
> measurements. And, since there are at least three distributors used in
> TDs, he will need to use appropriate measurements for his car.
> Bob
>
>
> On Fri, 23 Jun 2000 22:13:15 -0500 "Ray McCrary" <spook01@home.com>
> writes:
> > Why not just adjust the timing so that total crank degrees of timing
> > is
> > achieved, and let the idle timing take care of itself?
> > By this I mean that you know that it takes a total of, say, 32
> > degrees total
> > (crank) advance at 3000 rpm to achieve maximum performance. You set
> > the
> > distributor to give 32 degrees at 3000 rpm, and let the timing at
> > idle fall
> > where it will.
> > BTW, the 32 degrees is just an arbitrary figure that I have used on
> > other
> > engines; you will have to determine total advance on the MG
> > distributor from
> > a Lucas manual or other info source.
> > Best,
> > Ray McCrary
> > "Speed is Life;
> > of course Luck and Altitude
> > are helpful, too."
> > ----- Original Message -----
> > From: "Andrew Moyce" <amoyce@pol.net>
> > To: <mg-t@autox.team.net>
> > Sent: Friday, June 23, 2000 7:19 PM
> > Subject: Re: Timing the Pertronix ignition
> >
> >
> > > I'm still having some minor timing problems with the Pertronix. I
> > > haven't been able to static time, using either light off or light
> > on
> > > as an end point, so have to resort to timing light. The problem,
> > > I've been told, is that above 6 or 700 rpm the spring weights come
> > > into play, so the setting will be a little retarded.
> > > I currently have it set (idling at about 800) at a few minutes
> > > before 11 o'clock . . . assuming TDC is 12 o'clock. Runs okay, but
> > > I'm getting gear lever rattle on acceleration. The rattle wasn't
> > > there when I had the timing set closer to 11:15 or 11:30. Should I
> > > go back there?
> > >
> > > Andy Moyce
> > > 52 TD
> > >
> >
>
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