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Ac copressor cluth broken, can i pull the pulley off to remove the clutch

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I have done this on my tractor trailer im sure this can be done on a smaller compressor only if you are pulling it off to replace it! if you just want to remove it to disable you cant.remove compressor on get new belt just tell parts person you dont have a/c

Posted on Jul 20, 2008

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How to remove and reinstall a clutch on an a/c compressor



The AC compressor continued to turn even after I pulled the 12-volt supply wire to the unit. The AC compressor exhibited no unusual symptoms that would explain the locked clutch, there was no bearing failure, no unusual noise, On the contrary, the AC continued to work properly. The Jaguar cooled as good or better than the other cars I currently own, all of which have original factory 134a AC systems. uses the GM A6 compressor, a common compressor used by a variety of General Motor's cars I was not about to disassemble a perfectly working AC system because of a defective clutch. The project starts by removing the hood. Clearance in the Jaguar engine bay is non-existent. In addition, the AC compressor is located 3 inches from the radiator top support. it is possible to do this with the hood on you will regret it. The objective is to replace the AC clutch on the car. Remove the AC compressor's front and rear bolts only. Lift the front of the compressor up to clear the top radiator support. Do not depressurize the system or remove any hoses.
Remove the center 9/16-inch nut from the compressor shaft. A special clutch holding tool is not needed if an air impact wrench is used.
install the clutch removal tool. The clutch is "press fit" to the AC compressor front shaft.
Instead of a clutch holding tool, I used a bar resting on the engine (blue arrow) to hold the tool removal nut while I turned the center stud that forces the clutch off.
The pulley is now completely visible. You will need a large snap ring pliers to remove the snap ring that secures the pulley.
Notice the towel below the compressor. Snap rings (red arrow) have a habit of flying off the pliers and disappearing forever into the engine. You are farned
The pulley is a zero clearance fit to the compressor nose. If you are lucky it will slide off by pulling on it. You will probably not be lucky. I used a puller to remove the pulley. Be careful here. You must identify what the puller can and cannot push against. The center compressor shaft must not be used as leverage to pull or push any component not on the compressor shaft. A 1 1/8-inch, 1/2-in drive socket (red arrow) will fit over the center shaft and rests on the compressor nose cone. This is my leverage point. I taped a large washer (blue arrow) to the socket to provide a contact point for the puller.
Attach puller jaws in the pulley groves and place the modified washer to rest against the nose cone. Slowly tighten the puller to remove pulley.
Locate and secure pulley key. If the key stays on the compressor shaft, do not remove it. An even bigger snap ring secures the coil assembly to the compressor. Remove the snap ring.
Remove coil assembly.
The clutch release springs (blue arrows) also appear to be in working order.
Testing the resistance of the coil assemblies indicate that they are within specs. The old coil pack reads 4.8 ohms.
The rebuilt coil pack reads 4.5 ohms.
In removing the clutch it appeared the coil was permanently energized. The clutch removal tool had to forcefully pull the clutch from the pulley. I was not about to put this coil pack back on. I cleaned the contacts on the rebuilt unit prior to installation.
Gently clean the nose cone remove any surface rust. the clutch bearing rides on this surface, it must not be damaged.
connect coil pack to compressor and install. Make sure the coil pack is attached properly to the electrical connector. There are three indicators on the rear of the coil pack that must match the corresponding holes in the compressor body (red arrow). Install big snap ring.
Clean pulley surface and install pulley. The bearing might require some slight persuasion to slide onto the nose cone. Use a drift (red arrow) that contacts the inner ring of the bearing only. Tap gently until the pulley bearing seats.
Install second snap ring. Make sure that the snap ring seats fully in the shaft grove. Tap the snap ring fully into the groove with a screwdriver if necessary. (red arrow)
Clean clutch mating surface and install clutch to the compressor. Note position of shaft key and corresponding clutch key slot. (red arrows). Make sure they line up before installing clutch to compressor shaft.
use the clutch installation tool. The front of the tool (blue arrow) screws over the threads of the exposed 9/16-inch shaft stud (yellow arrow). The nut then forces the bearing (red arrow)against the clutch face, forcing it onto the compressor shaft. One side of the bearing rotates with the nut to reduce friction as it forces the clutch onto the shaft. Note that the forces all act on the compressor shaft, not against it.
Hold the center bolt while tightening the nut down.
You are looking for a pulley clearance of .010 to .015. If you inadvertently create too close a gap, put the clutch puller back on and pull the clutch out accordingly. Replacement and or rebuilt parts are rarely perfect. You will probably get different readings at various locations around the circumference of the clutch. If the closest gap is .010 or more and the largest gap is .015 or less you are OK.
Install 9/16-inch self-locking nut and tighten. If a clutch holding tool is not available, then finish tightening this nut after the compressor belt is on and the clutch energized. This nut does not hold on or impacts the position of the clutch. It appears to be a safety precaution just in case the press fit clutch somehow comes off the compressor shaft.
Install compressor to engine. Tighten 4 bolts to engine bracket. Connect electrical connections to coil assembly. Install belts.
Turn on your vehicle and let there be cold air, good luck sorry illustrations wouldn't load to this format

on Mar 05, 2011 | Jaguar XJ12 Cars & Trucks

2 Answers

Toyota 2004 A/C compressor clutch seizing


need PUC unlocked
sim TF64SIMC4
# 7064316017

Apr 18, 2013 | 2004 Toyota Sequoia

1 Answer

I ust had the water pump replaced. Now my ac has gone out. I know nothing about cars but I do know that I hear a strange noise and the front part of the ac unit was turning and now it's not. It seems...


It is unlikely that the replacement of the water pump and AC failing are related, however ensure that the V belt is correctly positioned and under tension. The AC pulley should be spinning continuously by the V belt. The AC compressor is engaged by an electrically operated clutch within/behind the pulley wheel. If the pulley wheel is not spinning but the belt is sliding over it then you have a seized AC compressor and this will most probably need replacing. If the wheel is spinning but the AC compressor is not working (no cooling) then it is the clutch that is not engaging. This could be due to a worn clutch, failed clutch actuator, broken electrical connection, failed relay, broken fuse a failed interior thermostat (the car thinks that the 'set' temperature has been reached and so switches the AC off). To check, put the AC on the lowest setting and test the voltage at the AC compressor connection. If voltage is being supplied it is likely to be a failed AC clutch. There are lots of AC clutch repair videos on youtube and these should be a great help.

Aug 22, 2011 | 1999 Mercury Mystique

2 Answers

Ac clutch squeals when i hit the gas no matter if ac is on or off but not at idle 98 jeep gc 5.9 need steps to replace clutch assembly


Are you certain that it's the clutch assembly?
Check the idler pulley. Poor tension in the idler pulley spring will cause the belt to squeal AT THE ALTERNATOR, and it may sound like it's coming from the AC.
The AC pulley typically "freewheels" when the AC is not on and the engine is running.
Have someone turn the AC on and off while the engine is running and watch the operation of the AC clutch. If it's working properly, the clutch should "click" and the back part of the pulley should start turning or try to turn.
If the squealing noise continues when the clutch is freewheeling, it's probably the idler pulley. If the AC Pulley won't start freewheeling, it's probably the clutch.
To remove the clutch system,
  • disengage the idler pulley and remove the serpentine belt from one of the pulleys.
  • rent, purchase or borrow a puller from a local auto parts retailer (Auto Zone and O'Reilly auto parts are both helpful)
  • some of the clutch systems have retaining bolts, some are just pressed in, figure out what you have before removing the clutch assembly using the puller.
  • The puller is also designed to help put the NEW clutch assembly back on the shaft.
The idler pulley assembly is a lot easier to replace.

Feb 19, 2011 | Jeep Grand Cherokee Cars & Trucks

1 Answer

Looks like a faceplate or some sort of front cover on the ac compressor looks like it broke free. Possibly bolts snapped off?


The ac compressor has a clutch on the front end where the belt pulley runs. When the ac is off the clutch disengages and the compressor stops running. The pulley will continue to turn with the engine. If the belt is running normally and that pulley is turning normally along with the other accessories on the belt, it may not be broken, just that the clutch is disengaged. If it is still in place and spinning then your clutch is probably not broken, but more likely you are low on freon. When the freon is low a switch tells the compressor not to come on, and only the pulley will turn. Your ac will not get cold. There may also be other reasons the clutch won't pull in, such as fuses and such.

Sep 22, 2010 | 1993 Buick Regal

1 Answer

My jag's a/c compresor froz up and now shop wast 1200.00 for change out and charge system. Is that all it will need jag X type 3.0


The AC is driven by a pulley pulled by the serpentine belt. When the AC is switched on an electrical clutch engages the driven pulley with the AC compressor on the same shaft. If the AC compressor is frozen up the pulley will not turn when the AC is switched on and the belt will squeal as it is pulled over the static pulley wheel. If, when the AC is switched on, the pulley wheel continues to spin then it is likely that the electrical clutch is not engaging. It is much more often the case that the clutch fails before the AC seizes. If this is the case check out the AC fuse and clutch relay. The fuse can be inspected visually and the relay can possibly be inter- changed with one that is similar (windscreen wiper or electric windows). The relay should make a 'click' that can be heard when the AC is switched on. Put the suspect relay into a circuit that you know is working in order to check it.

Jul 01, 2010 | 2004 Jaguar X-Type

1 Answer

How to change ac pulley on 1999 ford expedition


Remove the bolt from the front of it pull the clutch off then there's a spring clip behind the clutch remove that then lightly pry between the OUTSIDE of the pulley and the compressor it should work off

May 11, 2010 | 1999 Ford Expedition

1 Answer

The ac of my 2002 explorer works well, but sometime stops and after 2 minutes works again.


I would check the a/c compressor clutch gap. As the clutch wears the gap increases. Measure with a feeler gauge (with the engine off) between the clutch pulley and the clutch plate (the part that engages and disengages while the a/c is on. The factory gap spec is .018" to .030". If the gap is greater than .030" then remove the 8mm bolt that is in the center of the clutch plate. Slide the plate off the compressor shaft slowly and look for a small shim (washer ) or shims between the shaft and clutch plate. If there is more than one shim then remove the thinnest one, reassemble the cluth and check the gap. If only one shim was found try sanding it thinner on a piece of fine sandpaper of emery clothe. Reassemble and check gap.
Hope this helps

Apr 07, 2010 | 2002 Ford Explorer

2 Answers

AC clutch is grinding how do i fix? 1997 buick lesabre


Remove the clutch with a clutch removal tool after removing nut. The pulley for the belt does not need to be removed. The clutch needs to be shimmed with some small thin shims or shim that look like washers to space it out from the pulley. You will not lose freon doing this.

Dec 07, 2009 | 1997 Buick LeSabre

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