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rotorwrench · 05-06-2022, 09:26 AM

A lot of the ones I've seen that have marks look like that potvin cam where the marks are a little off. With 11 teeth that would only be 32.7 degrees of separation. That close to the center of the cam isn't a lot of distance between centers.

I don't think the distributor will care if it's rotated one way other the other a little bit. A person's going to have to time the engine anyway so it's not going to make much difference if the distributor is off a few degrees from where it was before the gear was replaced. The vacuum advance can may be off 16 degrees one way or the other and the vacuum tube will still screw on there.

05-06-2022, 09:26 AM	#20
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,527	Re: Distributor drive gear A lot of the ones I've seen that have marks look like that potvin cam where the marks are a little off. With 11 teeth that would only be 32.7 degrees of separation. That close to the center of the cam isn't a lot of distance between centers. I don't think the distributor will care if it's rotated one way other the other a little bit. A person's going to have to time the engine anyway so it's not going to make much difference if the distributor is off a few degrees from where it was before the gear was replaced. The vacuum advance can may be off 16 degrees one way or the other and the vacuum tube will still screw on there.