1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Distributor timing and split

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Old 12-18-20, 12:36 AM
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Distributor timing and split

Hello, maybe I知 searching the wrong terms, but I知 trying to find out how the split timing is controlled on the distributor. It seems to me that it would be controlled by the spacing of the contacts inside the distributor cap, but without a running rotary in front of me, or even a distributor setup, I have no good way of looking into it.

any help is appreciated
Old 12-18-20, 07:33 AM
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the 2 black plastic parts at 9 and 3, they can be adjusted individually of each other. one each for leading and trailing.


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Old 12-19-20, 05:34 PM
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Wow, thanks for the quick response, and that痴 exactly what I was looking for.

have you messed with changing the split? Is it difficult to get set where you want it?
Old 12-19-20, 06:34 PM
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never messed with it. it's whatever the factory setting is from 83.
Old 12-20-20, 10:36 AM
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Originally Posted by DriftFB
Wow, thanks for the quick response, and that痴 exactly what I was looking for.

have you messed with changing the split? Is it difficult to get set where you want it?
its very easy, trailing vacuum advance is slotted, and that is how you would adjust it. feel free to play with it, although i don't think you'd notice much on a stock engine

Old 12-25-20, 05:02 AM
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With a stock ignition just leave it stock. If you have a aftermarket carb with no vacuum advance hooked up. I like 0 leading 10 trailing. Just need to mark the pulley halfway between the yellow and red marks 10ー
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