1st Generation Specific 1979-1985 Discussion

How To Use A Timing Light?

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Old 08-17-2003, 11:32 PM
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I got ahold of a nice timing light with the tach and dwell meter on the back.....so how do I use this on a rotary. Ive actually had this question for a long time but I didnt have the light so I didnt ask.

I need to know how to use this on both the 13b and the 12a. Any help would be great.
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Old 08-17-2003, 11:53 PM
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Hook up the clamp style inductive pickup to the front rotor leading spark plug, ground the negative terminal/clamp, put the postive clamp/terminal on the + battery terminal, point and click at the pulley..
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Old 08-18-2003, 12:05 AM
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whats the tach and dwell for, v8's?
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Old 08-18-2003, 02:49 AM
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Originally Posted by 1Revvin7' date='Aug 17 2003, 08:53 PM
Hook up the clamp style inductive pickup to the front rotor leading spark plug, ground the negative terminal/clamp, put the postive clamp/terminal on the + battery terminal, point and click at the pulley..
ay is that on both 12a and 13b?
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Old 08-18-2003, 10:42 AM
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12a and 13b time the same. tach should be 4clyinder. dwell is for points
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Old 08-18-2003, 10:57 AM
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Thats what I thought. I have the electronic dizz.

Thanks guys.
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Old 08-19-2003, 01:09 PM
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What about the trailing timing? The adjustment on the side of the distributor? Do I do the same with the #1 trailing??
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Old 08-19-2003, 03:09 PM
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Originally Posted by nod1stgen' date='Aug 19 2003, 10:09 AM
What about the trailing timing? The adjustment on the side of the distributor? Do I do the same with the #1 trailing??
one of the vacuum advances is on slotted holes, that adjusts the trailing timing. put the light on #1 trailing



mike
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