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1977 Chevy Silverado Timing mark
1977 CHEVROLET SILVERADO
1977 Chevy Silverado Four Wheel Drive Automatic
Why does the timing mark shift? I set it but it won't stay
have the same problem?
Wednesday, January 27th, 2010 AT 8:23 PM
Is the rubber in the harmonic balancer coming loose? Are you using a fluid damper balancer? Are you able to get it close to 7 degrees before TDC?
Wednesday, January 27th, 2010 AT 8:43 PM
Could be coming from the vacuum advance unit/worn distributor cam lobe Hence: Dwell angle will change ignition timing-Ignition timing will not change dwell angle.
Wednesday, January 27th, 2010 AT 8:45 PM
Check for wear on the distributor gear, I prefer brass gears.
Wednesday, January 27th, 2010 AT 8:51 PM
to post a reply.
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