Thread: Alternator bolt loose???
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Old Oct 21, 2009 | 10:33 PM
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onehundred80
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From: Ontario
Default Re: Alternator bolt loose???
Originally Posted by kenng
If this was on an aircraft, I would assume I'm looking at fore/aft spacers (shims) to ensure belt alignment (manufacturing stack tolerances could drive the alternator pulley slightly fore or aft - during engine assembly I would assume there is a belt alignment check with a method to "zero" tolerances and ensure alignment)... Just a thought.
What you see is a bushing that fits the outside diameter of the bolt and the inside diameter of the casting, the shoulder of the bolts push against the bushings forcing the generator against the rear casting and locking it in place. Any pulley mis-alignment would be capable of being taken up by the length of belt from the idler and the water pump pulleys.
 
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