Timing
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Timing
I put a timing light on my car for the first time and with the engine running the mark on the pully was TDC. Was does that mean. I did have the timing light connected to the #1 plug wire. How do I resolve this?
Drifting
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From: DeBary Fl. Amateur Radio Operator K3CQR
Did you disconnect and plug the vac can? If so, and you were at 0*, loosen the dist bolt and turn the dist counterclock wise until you see 10* BTDC. Lock down the dist, and you should be good to go. Reconnect vac hose. Bill.
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I disconnected the vac hose but I didn't plug it.
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From: Conroe Texas
I'm no expert (standard internet weasel disclaimer) but I remember reading here on the forum that if the timing chain cover is not matched to the harmonic balancer, then the timing mark on the balancer will not correctly align with the timing tab on the chain cover.
Something about early model balancer versus late model timing chain cover.
However I don't remember if the mis-match would result in the timing appearing too far advanced, or too far retarded.
Here's the thread that discussed it, but I can't tell from the details in this thread where the timing mark would end up in relation to the tab on the timing chain cover, if your timing was at about 8 or 10 degrees advanced, but you used the mis-matched components
http://forums.corvetteforum.com/show...er+mark+timing
It is also possible that all of your components are correct, but maybe the outer ring of the balancer slipped in relation to the inner ring due to a failure in the rubber layer that bonds the two together.
Last edited by 62Jeff; Feb 23, 2008 at 11:48 PM.
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Tech Contributor
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From: Conroe Texas
Live Free or Die
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From: One thing is for sure this kind of discourse and BS would not be tolerated on the NCRS forum. Ohio
You can't rotate the distributor due to the cable that drives the high pressure pump needs to line up with the distributor. There is a pin that locates the distributor so it can't move.
There is a band on the distributor that you loosen and then you can adjust timing.
There is a band on the distributor that you loosen and then you can adjust timing.