1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

A/C Clutch?

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Old Apr 10, 2007 | 05:34 PM
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Default A/C Clutch?

I am working on my friends car, a 1995 SE. The AC pulley is making a horrible noise, and the inner part of it is turning at different speeds. It is turning very slowly, but not at a constant speed. It does this when the AC is on and when it is off. I am thinking it is the clutch, but i'm not sure. If it is, how difficult is this to repair?
Thanks
Art
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Old Apr 10, 2007 | 05:39 PM
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what kind of noise?
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Old Apr 10, 2007 | 05:40 PM
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I'm not sure about repair, but I did have that same issue with my 92. The clutch started to fall apart, and then quite literally fell to pieces and I have no idea where it fell off. I figured no big deal, cause there would be no clutch engaging, so I left it. But then, after a while, I started noticing a lot of noise coming from under the hood, and I realized later that it was the A/C pulley'* bearings were just running metal on metal, so I eventually bypassed the pulley with a smaller belt. I have thought about having the A/C replaced, but haven't gotten around to it yet. Let me know if you come up with a different solution.

I would possibly recommend bypassing it the same as I did for the time being, until you find a solution, otherwise your clutch/pulley could break apart as well.

Sorry I couldn't be of more help.
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Old Apr 10, 2007 | 05:43 PM
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What happens is that it starts breaking welds on the outer plate (or inner plate cant remember) But as the weld breaks it rubs the other plate and makes a loud tapping noise and gets faster as the RPMS raise. It sounds like that is what is happening 9but cant know for sure until you tell me the noise its making) and its like $100 for the plate and about 2 hours maybe to fix
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Old Apr 10, 2007 | 05:45 PM
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the hardest thing is finding the tools to it with.
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Old Apr 10, 2007 | 09:04 PM
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I think the route we're gonna go is the shorter belt for the time being. What size belt did you use to bypass the AC? And the noise is very hard to discribe, i'm gonna see if i can get a video of it tomorrow and upload it.
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Old Apr 10, 2007 | 09:08 PM
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it is possible that the gap between the AC clutches has gone a skew and they are rubbing. I had that happen on my 96. Got the clutch plates re-gapped and was silent again.

the clutches rubbing sounds like metal on metal.
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