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Old 09-20-2020, 10:40 PM   #19
CWPASADENA
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Join Date: May 2010
Location: PASADENA, CA
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Default Re: B Distributor Initial Timing

Quote:
Originally Posted by Patrick L. View Post
I would not recommend setting base timing more than 12º. Any more than that and the engine could kick back while starting.

A distributor advance putting out 12º equals 24º at the crank. So 36º total is plenty.

So if you have TDC marked on the pulley just raise the engine speed to a good cruise RPM and then guesstimate the amount of timing advance with the timing light. Or add a timing strip and you'll know for sure.
The Model "B" distributor has only 12 Deg. mechanical advance as measured at the crank shaft, (or 6 deg. Distributor shaft deg.). You could hand crank Model B's with 18-19 deg. initial without a problem at all. Time it the way Henry said to do it and it will be fine.

If you do not have enough initial timing when using a "B" distributor, the engine will be too retarded and will run hot and be down on power.

If you are running a 6.0 high compression head, it is not a good idea to have more than 28-30 deg. total timing at 2000 rpm.

My opinion,

Chris W.
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