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

1991 Tensioner Pulley

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Old Jan 14, 2015 | 11:56 PM
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Default 1991 Tensioner Pulley

Hi all, what's involved with changing the accessory belt tensioner pulley assembly? I believe mine is giving out and ate up my accessory belt. Looks like the mounting bolt runs into that front cross bar above the power steering ger at some point and it wont back it out enough to get it or the assemble out?
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Old Jan 15, 2015 | 03:12 AM
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The tensioner is bolted to the AC compressor bracket. One bolt holds it in place. It mounts just below #5 in this picture:



If the bolt hits something then you will need to move the AC compressor bracket out of the way.

Last edited by Cliff Harris; Jan 15, 2015 at 03:15 AM.
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Old Jan 15, 2015 | 08:28 AM
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Ok thanks. That's what I was thinking. Either remove the AC bracket or remove that passenger side motor mount bolt and lift up on the engine a bit. Just wanted to confirm. Hopefully, the tensioner bolt out enough without having to do either. Thanks.
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Old Jan 15, 2015 | 11:43 PM
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You should be able to remove the idler pulley assembly after loosening the bolt that holds the assembly to the bracket. The bolt does not have to come all the way out. The bolt will come out with the assembly once it is loose enough. Make sure you have your belt off the pulley so it is not putting any tension on the assembly.
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Old Jan 16, 2015 | 02:15 PM
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Ok esham, I'm going to give it a try this weekend. I'm hoping I can get it out just enough to remove the pulley. Thanks.
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Old Jan 17, 2015 | 11:15 AM
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Hi all. I was not able to remove the tensioner bolt because it runs right smack into the front frame cross bar located above the steering gear as you unbolt it. I was able to get the bolt out by unbolting the compressor and compressor mounting bracket bolts which allowed the compressor bracket to move up just enough to allow the tensioner bolt to completely come out.

The thing that is now puzzling is why the old belt got ripped in half length wise. The old tensioner looks good and feels good except the wheel spins mucher freely than the new one.

Last edited by hgoodwiniii; Jan 17, 2015 at 12:19 PM.
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