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Trouble setting the timing

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Old Sep 6, 2012 | 03:44 PM
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Default Trouble setting the timing

I want to check/set the timing on my '79 but the harmonic balancer does not have any marks on it (completely worn off over the years). I cannot even find a grove cut into it for the mark. The timing tab is attached to the block, so that is ok.
So I have to find tdc to set the mark. I bought a tdc indicator, but I am not able to rotate the engine by hand to use it. I do have an 18" breaker bar and the right hex head socket, but with all the belts, hoses, and the fan, I cannot get a good hold to rotate the engine.
I read that a tdc whistle will work and you can use the starter to bump the engine over to use it. Anyone used one of these? After you hear the whistle, do you set the mark under the 0 degree of the timing tab?
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Old Sep 6, 2012 | 04:15 PM
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PM "Billa, he recently suggested 2 tools to help someone find TDC. I think the total cost of the tools was below $30. His suggestion may help you also. Good luck.
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Old Sep 6, 2012 | 04:16 PM
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I know it's more work but if you remove all the spark plugs you should be able to turn it. Amazed that you cannt see the groove in the balancer. Have you tried removing the distributor cap and bumping the engine over till the rotor is pointing to either the number 1 or number 6 cylinder wire location. At that point the groove should be near the tab.
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Old Sep 6, 2012 | 05:01 PM
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Originally Posted by jdbuddy
I want to check/set the timing on my '79 but the harmonic balancer does not have any marks on it (completely worn off over the years). I cannot even find a grove cut into it for the mark. The timing tab is attached to the block, so that is ok.
So I have to find tdc to set the mark. I bought a tdc indicator, but I am not able to rotate the engine by hand to use it. I do have an 18" breaker bar and the right hex head socket, but with all the belts, hoses, and the fan, I cannot get a good hold to rotate the engine.
I read that a tdc whistle will work and you can use the starter to bump the engine over to use it. Anyone used one of these? After you hear the whistle, do you set the mark under the 0 degree of the timing tab?
If your dampener is so worn down that the timing mark has "worn off", you need a new dampener, badly.

The mark is there, probably full of crud. Find it, and clean the crud out.


Keep the shiny side up!
Scott
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Old Sep 6, 2012 | 05:05 PM
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Had the same problem on my '79. cleaned te damper and a little white paint in the groove fixed it.
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Old Sep 7, 2012 | 10:13 AM
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You guys were right. I had to bump the starter several times, degreasing each time. I finally found the groove.

It is now painted white and shows up nicely with the timing light.

Thanks for the help.
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Old Sep 7, 2012 | 04:06 PM
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Originally Posted by jdbuddy
You guys were right. I had to bump the starter several times, degreasing each time. I finally found the groove.

It is now painted white and shows up nicely with the timing light.

Thanks for the help.
So, how's the timing look?


Keep the shiny side up!
Scott
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Old Sep 7, 2012 | 05:55 PM
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if yo are trying to turn the motor over with the breaker bar on the bolt in the balancer, you can strip this bolt out, be careful.
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Old Sep 7, 2012 | 07:19 PM
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Try something like this for turning the engine over.

http://www.summitracing.com/parts/WMR-W80510/?rtype=10


Keep the shiny side up!
Scott
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Old Sep 8, 2012 | 11:28 AM
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Looks ok. Initial around 15 and total in the low to mid 30's with the vacuum advance plugged up.
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Old Sep 8, 2012 | 03:41 PM
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Originally Posted by jdbuddy
Looks ok. Initial around 15 and total in the low to mid 30's with the vacuum advance plugged up.
Sounds good. Are you using Lars' article for setting your timing?


Keep the shiny side up!
Scott
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