Distributor, rotor only moves half way around

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Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=56594
Printed Date: May 12, 2025 at 11:48 PM

Topic: Distributor, rotor only moves half way around

Posted By: medman
Subject: Distributor, rotor only moves half way around
Date Posted: May 28, 2005 at 7:37 PM

Im trying to do the timing on my truck. I know its right when i put cap back on distributor, but when i try to start nothing. The distributor is only going around half as fast as engine. When i put at tdc and get distributor right then turn back to tdc with cap of the rotor only moves half way around. Is this how its supposed to be ?? Help???!!??

Replies:

Posted By: Mad Scientists
Date Posted: May 28, 2005 at 8:37 PM

Well.. year, make model and engine size would be helpful, but yes, the distributor spins at half crankshaft speed. If you turn the crankshaft around twice your distributor should end up where you set it.

Jim

Posted By: medman
Date Posted: May 28, 2005 at 8:44 PM

2.9l bronco II i forgot about compression then exhaust stroke and i feel like an idiot thanks though

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