Re: Pertronix

From: Matt & Peggy (peartree(at)aa.net)
Date: Fri Jan 28 2000 - 18:45:10 CST


Well, I just called SS and a new set of points are one their way. Probably
just send the "P" unit back for a refund. It was worth a shot. Bugs me when
things don't work out according to the specs. Check the posts, another Alpine
owner had the same problem. I don't like his solution.

Matt

Jarrid Gross wrote:

> Matt wrote,
>
> >Ok, new Alpine owner, another question.
> >I installed the pertronox ignitor on my 66 Alpine V and now the timing
> >is way off.
> >At 800 rpm with the distributor cranked all the way counterclockwise,
> >(the vacuum advance is now up against the block) the best I can get,
> >(with the vacuum disconnected) is 30 degrees bftdc. With the points I
> >didn't have this problem.
>
> The pertonics sensor is mis-phased in relation to the rotor.
> There is supposed to be a lucas specific pertronix unit, which should
> put the trigger point at about the same position as where the points
> would open.
>
> You sure you have the right pertronics unit?
> Is it mounted at the correct point on the advance plate?
>
> Also it may be worth mentioning that although your timing shows
> correct with a light, the rotor will be so misphased that the spark will
> have to jump
> a huge gap from the rotor to the cap, that you spark will be very weak, and
> may even jump to an adjacent terminal in the cap.
> This is to say that even if you didnt mind the the didtributor touching your
> block, you shouldnt leave it this way.
>
> >P.S. The centrifugal weights read 13 degrees. So I figure static 8 + 13
> >centrifugal should give me 21. If my math is correct. I took new math in
> >school so no telling what the correct answer should be.
>
> The 13 you read is the number of cam degrees that the advance weights are
> set for.
> This is 26 degrees at the crank.
> with a static of 8, and the 26 crank degrees, you should see a net advance
> of 34
> at 3500 RPM (with the vacuum line removed).
>
> Good luck,
>
> Jarrid Gross



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