Setting base timing on Prestolite distributor

banderberg

Petty Officer 2nd Class
Joined
Jun 30, 2022
Messages
102
Good morning, I want to check/set the timing on my Mercruiser 3.0L. It has the conventional ignition (as opposed to EST). The distributor is Prestolite IBM 7026. The videos I have found on YouTube all show EST distributors and they have a shunt at the base of the distributor where you jump two wires to put the engine into base timing mode. The Prestolite distributor does not, as far as I can tell, have such a thing. I'm looking for information on how to put the engine into base timing mode with the Prestolite distributor that's on my engine. Thanks!
 
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