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Old Sep 16, 2015 | 10:10 AM
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I was working on my 1970 454 corvette and had to take the distributor cap off. Did not move the distributor. Forgot to mark it. If I position the timing mark just above the "V" can I set that position for my #1 plug wire for the distributor cap?
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Old Sep 16, 2015 | 10:22 AM
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Originally Posted by Wig
I was working on my 1970 454 corvette and had to take the distributor cap off. Did not move the distributor. Forgot to mark it. If I position the timing mark just above the "V" can I set that position for my #1 plug wire for the distributor cap?
Not sure I understand your question. If you didn't move the distributor, the timing is unaffected.
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Old Sep 16, 2015 | 10:24 AM
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Do you mean that you removed the spark plug wires from the top of the cap?

I'm guessing the V is the mark on the timing tab that is attached to the timing cover.

You can bump the starter to get to the harmonic balance mark to line up with the timing tab mark...after doing that----if the rotor is pointing to the driver's side head at the front of the engine...then the engine should run when cranked after installing the plug wires onto the cap.

If the engine refuses to run.....the easiest method is to remove the #1 spark plug/stick the tip of your finger into the spark plug hole/have someone bump the starter lightly several times until you feel pressure trying to blow your fingertip out of the hole.

The #1 piston should be on the compression stroke at this point/the harmonic balance mark should be lining up closely with the timing tab/the #1 spark plug wire needs to be plugged into the distributor cap hole that the rotor tip is pointing toward. The engine should run when cranked.
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Old Sep 17, 2015 | 11:58 PM
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I think I understand your question, but I cant help with the answer. Are you asking if you bump the engine until the timing mark aligns with the V mark on the timing indicator, would that be top dead center for #1 cylinder. If that is true, then you want to drop in your distributor and have the rotor point towards the #1 cylinder, and timing should be close.

I think that is the question you are asking. Maybe some one else can answer this question. I dont know if this would necessarily make it the #1 cylinder top dead center.

kdf
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Old Sep 26, 2015 | 11:06 AM
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Originally Posted by Wig
I was working on my 1970 454 corvette and had to take the distributor cap off. Did not move the distributor. Forgot to mark it. If I position the timing mark just above the "V" can I set that position for my #1 plug wire for the distributor cap?
I think i understand your question. If I do. All you have to do is pick a #1( which is usually at 5 oclock looking at the cap from the front) and plug in the rest of your wires in firing sequence. You didnt move the distributor , Right???
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Old Sep 26, 2015 | 11:25 AM
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Originally Posted by Wig
I was working on my 1970 454 corvette and had to take the distributor cap off. Did not move the distributor. Forgot to mark it. If I position the timing mark just above the "V" can I set that position for my #1 plug wire for the distributor cap?
That will identify 1 or 6, depending on the stroke.
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Old Sep 28, 2015 | 04:06 AM
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TWO rotations of the engine for ONE rotation of the distributor. It's a four-stroke engine. When the harmonic balancer mark is lined up, you either have #1 TDC on compressions stroke or on exhaust stroke.

That's why you stick your pinky BY the spark plug hole so you can feel the outward airflow during the compression stroke. (Sorry, I don't stick my pinky IN the spark plug hole.)
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