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

I put the frisbee back on.

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Old Apr 23, 2023 | 09:44 PM
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Default I put the frisbee back on.

Yes, I put the frisbee back on my ‘89 roadster. I think these came stock on 88-91 L98 cars. Big and heavy rotating mass on the water pump pulley. Took it off in 2006 when I acquired the car. Hoping for 3 hp. Having some idle issues lately. Air compressor would swing the belt tensioner so hard, you could feel it in the seat. This helped a lot.
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Old Apr 23, 2023 | 11:13 PM
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Forgot how impossible it is to get the belt on with the frisbee. And yes, I have the right tools.
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Old Apr 24, 2023 | 07:30 AM
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You might want to check the condition of compressor mounting bracket(s) if you've issues like you explain. The earlier 'denso mounts are known for failures.
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Old Apr 24, 2023 | 09:14 AM
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I replaced my water pump a few months ago and I put the frisbee back on too.
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Old Apr 24, 2023 | 10:32 AM
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Yes, check the compressor mounting brackets out while youre in there, they're cheap pot metal and I've destroyed them before.

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Old Oct 1, 2023 | 09:57 PM
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Installed a new reproduction tensioner and belt today. Much better. Stretched belt and/ or weak tensioner spring.
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