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Re: belt noise
Look down over the shroud if the belt is seem to be bouncing a fair amount might be loose
if the engine not be running long ( you just started up place you hand on top of the alt pay attention to the belt does not get close to the belt fingers feel for vibration then the a/c pump again watch the belt does not grab your finger. Or a auto Stethoscope if you want be safer. (when the belt is not running the longest part between pulleys should have about 1/2 play in the middle when you press on it. Oh those alt's are know to have bearing go bad a lot more then any other AC Delco alt's
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 1977 REG cab Long Bed with a 1984 Front Clip, 82 305 .60 over 9.0.1 flat top pistons, 4bbl, TH350, w/84 SS-intake & cam , w/ 1977 big block rad, 1975 gear box, 1984 master w/ metric fittings top & SAE fitting @ portion block, 1975 3.42 gear open diff. Duel 77-87 Factory air cleaner, duel inlet from rad support . Down sized 9' to new 8' Steel flat bed
Was a 77 454 w/308 gear. Taken out 550 lbs. up front with motor clip change.
Last edited by Pontiac1976; 04-24-2021 at 06:49 PM.
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