Re: IML: New vs old style alternators

["mike sutton" <mikanlin62@xxxxxxxxxx>]

The easiest way is to look at the back of the alternator at the diodes, the 
newer ( 72 and later ) have a rectangular or squared off area that the 
diodes are built into.  The older ones are rounded, you can see 3 of the 
diodes pressed into one part of the alternator and it resembles a 3 leaf 
clover as you look directly at it.  ( Not the best visualization but once 
you see them together its unmistakeable.)  Another way is to notice that one 
brush lead is attached directly to the alternator frame and the other brush 
has the field wire.  The newer ones have two field leads.

Btw, the 100 amp unit is not included in this discussion, though it is very 
similar to the newer style.

Mikey
62 Crown Coupe 




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