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What does this bracket do and how does it fit?

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Old Jul 3, 2021 | 04:15 PM
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Default What does this bracket do and how does it fit?

Whenever the alternator was replaced on my '81, this bracket was not refitted correctly.

What is its purpose, what does the text refer to and what is the correct orientation of fitment as I can't make it fit in a way that looks and feels like it is serving a purpose.

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Old Jul 3, 2021 | 06:16 PM
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The bracket attaches to the alternator bracket. I do not know what it is for.


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Old Jul 3, 2021 | 06:35 PM
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Thanks - I'll have another crack at fitting it, but from what I remember, in that position it hit the belt, but I'll double check.
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Old Jul 3, 2021 | 06:55 PM
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Belt guard..should be 1/4 inch away…



Last edited by interpon; Jul 3, 2021 at 07:02 PM.
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Old Jul 3, 2021 | 06:57 PM
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Originally Posted by interpon
Belt guard..should be 1/4 inch away…
Thanks.
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Old Jul 3, 2021 | 07:06 PM
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Old Jul 3, 2021 | 07:44 PM
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I guessI guess you could throw the hood in as other potential victims. $12 fan belt ends up being a $500 paint repair would rather suck. you could throw the hood in as other potential victims. $12 fan belt ends up being a $500 paint repair would rather suck.
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Old Jul 3, 2021 | 07:45 PM
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[QUOTE=derekderek;1603679327]I guessI guess you could throw the hood in as another potential victim. $12 fan belt ends up being a $500 paint repair would rather suck.
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Old Jul 3, 2021 | 08:46 PM
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It's there to prevent belt "whip". If a whip develops between two pulleys (more likely at higher rpm) it can make the belt jump off the smaller pulley. In this case the alternator pulley. When adjusted down to 1/4" from the belt it stops the whip.
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Old Jul 4, 2021 | 05:11 AM
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Thanks all. - I shall refit with a new found sense of wisdom and understanding, and then stand back and sip team like a proud Brit.
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Old Jul 4, 2021 | 08:03 AM
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Jolly good!!
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Old Jul 5, 2021 | 03:38 PM
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Ah, worked out what the problem is, I can't fit the bracket without it touching the belt, even on the end of it's travel - I need to rotate the alternator away from the engine and therefore down a touch to create any clearance, but I guess that's limited by the length of the alternator belt? I.e the only adjustment is the curved slot on the mounting bracket?

Last edited by Last Triumph; Jul 5, 2021 at 03:38 PM.
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Old Jul 6, 2021 | 07:28 AM
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perhaps you have the wrong belt. As you can see by photos supplied by myself and others. should work fine.
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Old Jul 6, 2021 | 07:53 AM
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Originally Posted by 4-vettes
perhaps you have the wrong belt. As you can see by photos supplied by myself and others. should work fine.
I was suspecting that.

What is the prescribed belt length for a '81 and does this also drive the smog pump?

Looks like I need to remove all the other belts to get to it - might be one for later down the line and the belt is pretty new.
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Old Jul 6, 2021 | 04:56 PM
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1953-1982 parts and illustrations guide c3 corvette lonk - CorvetteForum - Chevrolet Corvette Forum Discussion

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