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Old 04-30-2006, 10:49 PM
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Small frame (case) GM alternator donor cars

Many hot rod parts suppliers advertise "small case" alternators (in the 100 amp range). What donor cars (single groove pulley) would these typically come from? I am using it in a T bucket with an SBC, low mount, drivers side installation. The 10 SI (6 inch or 150 mm case) alternator I have does not allow for fan belt adjustment before the alternator case hits the frame of the car. So far in my research it looks like they might be the GM CS130 (130 mm or 5.12" case) model but I am not certain about this. Half an inch more space between the alternator and the frame would solve my problem.
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Old 05-01-2006, 06:38 PM
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Try a shorter fan belt.

vicrod
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Old 05-01-2006, 08:34 PM
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Originally Posted by vicrod
Try a shorter fan belt.

vicrod
Or solid mount the alternator to where it is non adjustable then install an adjustable idler pulley.

Vince
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Old 05-01-2006, 10:01 PM
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Doc here,

Or a larger Diameter Aftermarket Alternator pulley.

Tons of options..

Doc
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