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#1
02-16-2004, 03:08 PM
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Having probem to align the ac belt on my 1970 Pontiac LeMans Sport Conv whit 400 cu engine,
have an AC crankshaft pully stampt whit 9790843YC,should the pulley be turnd with the number against the block or against the radiator,could mention that the crankshaft pully have 9790842YB stampt on it and waterpump pulley is 9799128-XT. Thanks ///Mikael |
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#2
02-16-2004, 03:08 PM
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Having probem to align the ac belt on my 1970 Pontiac LeMans Sport Conv whit 400 cu engine,
have an AC crankshaft pully stampt whit 9790843YC,should the pulley be turnd with the number against the block or against the radiator,could mention that the crankshaft pully have 9790842YB stampt on it and waterpump pulley is 9799128-XT. Thanks ///Mikael |
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#3
02-16-2004, 05:26 PM
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I looked at some crankshaft and AC pulleys that were wrecked because of someone incorrectly mounted them. The 9790843 stamping goes against the crankshaft pulley. If you did it the other way, there is an approx. 1/8" gap left between the two that will crack either pulley when tightened down (more than likely will be the crankshaft pulley, around the retainer ring).
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So long, farewell. |
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#4
02-17-2004, 01:48 AM
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Im asking becuse when i took it apart the number on the AC crankshaft pully was turn to the block then there was a spacer filling the gap between it and the crankshaft pully and ac belt didnt line up,when im turn the AC crankshaft pully whit the number to the radiator and remove the spacer and put the crankshaft pully on it lines up fine,what could the spacer be for,is that something that is not supposed to be there?
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#5
02-17-2004, 06:28 AM
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Mikael:
That piece you're talking about is not a spacer, it's a reinforcement that goes on last, inside of your outermost pulley. The four bolts which hold everything to the crankshaft dampener tighten against that reinforcement. Hope this helps. Later, "455HO" Lloyd 1972 Formula 455HO; Lucerne Blue; 12.96 @ 104 MPH @ the '03 PSN's 1970 GTO 455HO; Palomino Copper 1972 GTO 455HO; Sundance Orange
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Regards, "455HO" Lloyd 2008 GMC Sierra Denali 2WD Crew, L92 6L80E, Silver w/ Ebony guts, 14.26 @ 98 
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#6
02-19-2004, 12:42 PM
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also, some of the set ups had a rubber ring that fit inside between the two pulleys so they nest together nicely.
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