mrvette
Well-known member
TT is correct as usual....and another thing...IMO...set the initial at no more than 12 degrees, and set the cent timing to be all in by 3k rpms....which means spring and the weights...AND also the rubber limit shims on the spring studs they limit the amount the cent advance can do regardless of the rpm's....
so if you are limited by a rubber shim pack (2 of them, one per stud) the thing can't advance beyond that....
so to correct all that rev engine to say 3500 rpm and see that advance at say 36 degrees and holding...WITHOUT any vacuum advance applied at all....
then clamp the damn thing down...THAT is your initial timing....be it whatever...should hopefully be less than 12 degrees to aid hot starting....
hook up the vacuum advance and have at it....springs are for determining WHEN it comes in...not the total amount....
the WHEN is determined by driveability and pinging and so forth....so go conservative......
GENE
so if you are limited by a rubber shim pack (2 of them, one per stud) the thing can't advance beyond that....
so to correct all that rev engine to say 3500 rpm and see that advance at say 36 degrees and holding...WITHOUT any vacuum advance applied at all....
then clamp the damn thing down...THAT is your initial timing....be it whatever...should hopefully be less than 12 degrees to aid hot starting....
hook up the vacuum advance and have at it....springs are for determining WHEN it comes in...not the total amount....
the WHEN is determined by driveability and pinging and so forth....so go conservative......
GENE
