C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Serpentine tensioner.

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Old Apr 22, 2007 | 06:11 PM
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From: sidney bc
Default Serpentine tensioner.

Hey guys,

I just replaced my alternator and even with tensioner backed way off, i still can't get the belt back on... Suggestions?
TIA
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Old Apr 22, 2007 | 07:08 PM
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With the tensioner fully released it is still very tight. I like to align the belt over everything but the alternator, then pry the tensioner all the way back and slip the belt over the alternator last.
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Old Apr 22, 2007 | 10:30 PM
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i have done it b/f takes patience and practice
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Old Apr 22, 2007 | 11:13 PM
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Just a reminder that it's easier to slide onto the ones without ridges (backside).
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Old Apr 23, 2007 | 12:01 AM
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Originally Posted by aminnich
With the tensioner fully released it is still very tight. I like to align the belt over everything but the alternator, then pry the tensioner all the way back and slip the belt over the alternator last.
easiest way
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Old Apr 23, 2007 | 12:02 AM
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make sure you do in fact have the tensioner fully backed off too...I was having a very hard time because my wrench was too long and the radiator hose was getting in my way.

A second set of hands can be very helpful too.
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Old Apr 23, 2007 | 01:40 AM
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another posibility is the belt has shrunk due to heat. Not that long a go I smoked my belt trying to set my valve lash (long story) in short the belt shrunk and I had to replace it the new belt slid on very easily. I also recomend a belt tensioner tool ($20 at autozone or other) the thin bar helps get into the tight space and make shure the tensioner is fully released
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Old Apr 23, 2007 | 07:31 AM
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Purchased a serpentine belt tool from Summit Racing. It fully depresses the tensioner with your left hand while you slip the belt over the alternator with your right hand.

OR, ask your wife, neighbor or friend to fully depress the tensioner while you slip belt on.
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Old Apr 23, 2007 | 10:47 AM
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And be sure you don't break your water temp sensor off in your pump housing (LT engines). It's very easy to do.
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