I too had trouble timing the Petronix unit with a static light until I
figured out that with the electonic unit, the circuit is collapsed when the
light goes OFF, not when it comes on as with the regular breaker points.
When I originally timed it so it was set where the light comes on I was
about 90deg out, just as you were.
Hope this helps?
Scott
52TD
>From: Andrew Moyce <amoyce@pol.net>
>To: "Nigel Geach (CRFPULP)" <Ngeach@fccl.com>, "'MDandGI@webtv.net'"
><MDandGI@webtv.net>, candahill@worldnet.att.net
>CC: mg-t@autox.team.net, mg-tabc@egroups.com
>Subject: Re:Pertronix Ignition Installation
>Date: Wed, 31 May 2000 12:45:01 -0400 (EDT)
>
>Just thought I would share my experience in installing the Pertronix
>in my TD. First problem started in selecting the correct unit. I
>looked at the illustrations in the service manual and compared those
>to my distributor cam but could not distinguish between asymmetric,
>high lift and whatever the other one was. I drove the car out to Skip
>Kelsey's, and we looked at it together and made an educated guess.
>Finally we decided on the asymmetric. When I got home and tried to
>slide the magnet over the distributor cam it wouldn't seat. It would
>slide over the cam but not far enough to allow the rotor to seat
>properly. I assumed I had the wrong unit. I exchanged it for the
>other unit (there are only two for the TD) and found that fit was
>worse.
>
>I talked to other members in the club who had installed these things.
> No one seemed to have experienced a tight fit over the cam. Finally
>with Skip's pen knife we whittled away at the plastic ridge inside the
>magnet and got it to slide down over the cam. The car started right
>up. I had about a three mile drive home before I could set the
>timing.
>
>I remember discussions long-ago about rattling in the gear shift lever
>being attributed to retarded timing, and I can attest that this was
>significant. Traveling uphill the gear shift lever sounded like
>marbles in a coffee can. I first tried to set the timing by the
>static method, but couldn't start the engine after three different
>tries. I finally resorted to a timing light, aligning the distributor
>to its original position, and then rotating it while the engine was
>running. I was surprised at how far off the timing was . . . actually
>advanced by about 80 degrees (360 degrees in a circle). With the
>timing light I set it to about five degrees advanced (rpm at 800)...
>rotating the distributor 30 or 40 degrees counter clockwise to do so.
>Now it runs like a dream. I used to think the engine was pretty
>smooth, but now it buzzes like a contented bee at all speeds. We just
>completed a 600 mile trip to Yosemite and back and it performed
>beautifully.
>
>So, installation was not smooth and easy, and I have a suspicion that
>I have the magnet misalignedd a bit on the cam, but the results are
>wonderful.
>
>Andy Moyce
>52 TD
>
>
>
>------------------ Reply Separator --------------------
>Originally From: "Nigel Geach (CRFPULP)" <Ngeach@fccl.com>
>Subject: RE: [mg-tabc] Re: TC Top
>Date: 05/31/2000 08:20am
>
>
>Thanks, Geoff,
>Since March '46 would be " early '46 ", the ragged black top on my TC
>0710
>might very well be original! It sure looks like it. If that's the
>case, I
>think I'll keep it black. Thanks, groups, for all the input. Any other
>'46
>owners care to comment?
>Cheers,
>Nigel
>46 TC 0710
>73 Triumph Trident (for the times when I want to go faster!)
>
> > -----Original Message-----
> > From: MDandGI@webtv.net [SMTP:MDandGI@webtv.net]
> > Sent: Tuesday, May 30, 2000 5:35 PM
> > To: candahill@worldnet.att.net
> > Cc: mg-t@autox.team.net; mg-tabc@egroups.com
> > Subject: Re: [mg-tabc] Re: TC Top
> >
> > You are right Charles the 1945 and the early 1946 had black tops in
> > company with any colour you want providing its black!
> >
> > Regards Geoff
> >
> >
> >
>
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