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post #1 of 9 (permalink) Old 03-18-2017, 01:33 PM Thread Starter
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AC Compressor Pulley

Is it possible to remove the pulley to the A/C compressor without pulling the compressor out? I'm getting a warbling squeak on acceleration and the only thing there is the compressor. I've already changed the idler and tensioner pulleys...

Don't like squeaks!

Thanks amigos!
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post #2 of 9 (permalink) Old 03-18-2017, 01:49 PM
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Which motor? You may be able to bypass the A/C pulley with a different belt and arrangement.

This will avoid having to pull said pulley.

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post #3 of 9 (permalink) Old 03-18-2017, 02:29 PM Thread Starter
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I want to keep the A/C.
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post #4 of 9 (permalink) Old 03-18-2017, 03:43 PM
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Oh.

Yah, you can just replace the pulley; however, do remember, that compressor is ancient also.

I'd replace both, and convert to R134a (hey, that's what I DID do!)

But the pulley and clutch can be swapped separately. See, for instance, 1991 MERCURY COUGAR 5.0L V8 A/C Compressor Clutch | RockAuto

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post #5 of 9 (permalink) Old 03-19-2017, 11:43 AM Thread Starter
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So I think I'll buy a compressor and clutch as they can only be the ones squeaking. Guess I'll have Goodyear install them as I don't have all the tools needed, nor a lift!
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post #6 of 9 (permalink) Old 03-19-2017, 12:09 PM
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I didn't need the lift; DID need my vacuum pump, gauges, et al.

Goodyear will also want to swap the accumulator and the expansion valve; you should refresh all the seals / o-rings; and I'd consider having them flush what's left in the system.

Also, they'll want to convert to R134a; that does blow ice cold in our 1991 in 100F temps, so that's good.

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post #7 of 9 (permalink) Old 03-21-2017, 08:02 AM Thread Starter
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They don't service R12 systems to even hold my refrigerant (other's might). I bought a refurbished clutch, pulley and clutch coil for a great price.

I'm wanting to change them as I believe since the idler and tensioner pulleys were worn out, the a/c clutch must also be.. Swap them out and see if my warble goes away.
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post #8 of 9 (permalink) Old 03-26-2017, 03:28 PM Thread Starter
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Swapped out a/c coil, pulley and clutch today. Old one spins freely, but you can hear the clicking of the bearing as it spins. Kept the OEM coil, it's working just fine. Was a little bit of a PITA, had to remove the battery and undo the tranny line to the radiator... also had to buy a good set of locking clip pliers...but it's done. The new pulley didn't want to go on without some help from Mr. Heat Gun...but she's on now.

I've been on a hunt to eliminate worn out parts noises from the engine bay... almost there

Done the tensioner pulley, idler pulley, a/c pulley. I do notice some "play" in the pulley for the power steering... end slap, is that what they call it... ?
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post #9 of 9 (permalink) Old 03-26-2017, 09:53 PM
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It may be end slap; it may be time to replace that power steering pump.

Or convert to a Saginaw pump. (That appears to be for the not-faint-of-heart. I'll keep my Ford pump, thankewvellymuch)

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