Question about 1990 GMC K2500
Set cylinder 1 to top dead center then set the distributer to the #1 wire contact, snug down the distributor and start the engine, then hit the crank dampener with a timming light while clipped to the #1 spark plug wire and turn the distributor till the timming light is showing 0 on the crank, then tighted it down and timming is set.
Posted on Dec 11, 2008
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Posted on Jan 02, 2017
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