Posted by 440roadrunner on June 25, 2009 at 11:43:39 from (98.145.93.224):
In Reply to: alternator charging posted by Bob on June 25, 2009 at 09:38:19:
Bob said: (quoted from post at 09:38:19 06/25/09) It makes no difference to the actual charging mechanism, but the pulley MAY fall off!
Most Delcos ans many othere have no key in the pulley ), just depend upon the pulley turning in the direction that tightens the nut.
If you run that type of alternator the opposite rotation the load on the pulley will always be trying to work the nut loose. .
Absolute nonsense Every Delco I've ever seen on a car/ lite truck, and I've torn down a lot of them, had a right hand thread nut with no key, and last time I looked, cars and truck engines turned CLOCKWISE.
What may or may not make a difference is fan direction. Things like Corvairs had a reverse pitch alternator fan, as the generators and alternators on those ran CCW. However, if your tractor doesn't have much in the way of load, you'll probably get by fine.
We once converted an old Allis M crawler, reverse drove the alternator off the mag drive. Worked just fine.
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