|  01-12-2018, 11:58 AM | #21 | 
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				Join Date: Mar 2012 Location: Ft. Leonard Wood 
					Posts: 6,167
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					Originally Posted by jb92563  What is the purpose of the alternator having a clutch?
 Does it engage under computer control or is it static?
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Here is a fairly decent explanation: Denlors Auto Blog » Blog Archive » Overrunning Alternator Decoupler – Clutch Type Alternator | 
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