re:More ignition trivia: rotor-arm gaps

From: Andy Whiteford (A.G.Whiteford(at)gcal.ac.uk)
Date: Tue Oct 07 1997 - 07:50:33 CDT


Dick t. wrote:
>.......when the dist body has to be rotated a large
>amount to obtain idle rpm timing setting, the rotor can be so far off
>from its alignment with the cap contact that a large air gap occurs,
>and the spark must leap this gap.....resulting in misfires and/or
>poor running at higher speeds.

Is it true that Lucas re-designed the rotor-arm a couple of times on the
Alpine / Arrow range distributer to minimise air gap at different
rpm/timings?. Is their a more modern rotor-arm we should be using?

Andy



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