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Old 04-08-2003, 09:41 PM   #1
Pardue'sCustoms
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cam and crank gears please help

what year did chevy line the dots up on both the cam and crank i thank i have a 1980 motor suffix code tmm casteing # 3970010 and do the dot go up on the crank and cam down or both up thanks
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Old 04-08-2003, 10:00 PM   #2
Chevy67Tk
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Crank up, cam down so they line up. If you know some one with a degree wheel and dial indicator kit make use of it you would be amazed at how many are off mark a degree or 2 on the factory marks.
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Old 04-08-2003, 10:10 PM   #3
lngbed71
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Crank up....cam down
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Old 04-08-2003, 10:16 PM   #4
bigjimzlll
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with the crank at 12 oclock and the cam at 6 oclock you will be on number 6 compression stroke...turn the crank one revolution and the crank will be at 12 and so will the cam...now your on the #1 compression stroke....so ...install crank 12 and cam 6...then rotate crank 360 degrres for the distributor install
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