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Old 12-14-2025, 10:24 PM   #20
41SupDelux
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Join Date: Oct 2024
Posts: 23
Default Re: Timing advance plate - Crab Distributor

Quote:
Originally Posted by 38 coupe View Post
These days I typically advance a front mount distributor several notches more than factory spec and find the engine runs better. I suspect that is due to a bit of wear in both the front slot of the cam and in the drive tang of the distributor.

Today's fuel with octane higher than the 1930s, with a bit of alcohol in it, probably matters too.

I have a pertronix solid state in my crab distributor and I want to adjust the timing plate - that little plate with the notches. I am having a heck of a time finding out which direction adjusts it how. If I'm facing the engine, which way do I push the screw and plate to advance or retard? Left or right? (Or up or down, depending on how you think of it.)
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