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| | | | Joined: Dec 2005 Posts: 101 Member | | Member Joined: Dec 2005 Posts: 101 | I set my timing light on my harmonic balancer and adjust my distributor. Then when I rev the motor up the mark slowly rolls away to where I cannot see it. I have seen they mark move slightly but never move to where you could not see it.
Any thoughts!
Roger
http://www.flickr.com/photos/45469713@N00/?saved=1
| | | | | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | Roger,
Between the vacuum advance and the centrifugal advance, it should be normal for the mark to disappear. You are seeing 'advance in action'.
Stuart | | | | | Joined: Nov 2006 Posts: 247 'Bolter | | 'Bolter Joined: Nov 2006 Posts: 247 | Roger
It depends on how far the mark is moving and it should be going in the advance direction. Your distributor should have a mechanical and a vacuum advance on it. The mechanical advance is a couple of weights that rotate outward as the rpm increases and advances the timing. The vacuum advance should kick in as the speed of the engine picks up and also advance the timing.
You should be able to find out how much advance you should have in the tune up specs for your engine.
Hope this helps.
Jim | | |
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