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How to install a clutch pulley for the compressor

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I removed the compressor.
there is an 8 mm bolt that holds the hub on. remove the bolt and slide the hub off.
careful not to lose the shim between the hub and shaft, its small.
then snap ring pliers remove the snapring, tap the pulley off. if the bearing went bad, inspect the compressor case closely for damage.
if your replacing the coil, it is pressed on, use care when installing the new one.

Posted on Aug 06, 2010

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3.9 V6. How can I remove the A/C clutch?


You need special tool
Tools Required ?€¢
J 37872 Compressor Clutch Holding Tool


?€¢
J 6083 Snap Ring Pliers


Important: Remove the three adjustable dowels from the J37872 Compressor Clutch Holding Tool.
Install three 5/16 x 1 inch bolts in place of the dowels.
Remove and discard the compressor clutch plate bolt.
Use the J 37872 to hold the compressor clutch plate from turning.
Remove the compressor clutch plate from the compressor.
Remove the compressor pulley snap ring using the J 6083
Remove the compressor pulley from the compressor.
Remove the compressor clutch coil snap ring using the J 6083 .
Remove the compressor clutch coil from the compressor.
google J 37872 - to see tool !

Jan 31, 2016 | 2006 Chevrolet Chevrolet Impala LT

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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

Is there anyway to by pass the AC unit, when installing a new belt ?


There may be a compressor eliminator pulley kit for your car. Or if your compressor is locked up, replace the compressor with a used or rebuilt just for the sake of bearings. Or if a belt will clear with the compressor gone (or installed) , measure from your mark on one apex to the next pulley/ idler with the tensioner compressed more than halfway and add that distance to the remaining belt length between the marks and ransack the earth for one. Start with Graingers. Or try your parts supplier who took an oath not to try to match anything up. Here you'll have to ask to use the bathroom, and while in the back start measuring belts.

Nov 28, 2014 | AC Cars & Trucks

1 Answer

Im trying to replace the ac clutch on an 04 mustang. i have the clip off but the clutch won't slide off. help please


Clutch and Clutch Field Coil adobe.gif Printable View (235 KB)
Special Tool(s) st1260a.jpg 2-Jaw Puller
205-D026 (D80L-1002-L) or equivalent st1232a.jpg Installer, A/C Compressor Coil
412-065 (T89P-19623-EH) st1235a.jpg Holding Fixture, Compressor Clutch (3.8L vehicles)
412-098 (T94P-19703-AH) st2584a.jpg Holding Fixture, Compressor Clutch (4.6L vehicles)
412-103 (T95L-19703-AH) st1220a.jpg Remover, Differential Bearing
205-116 (T77F-4220-B1) st1234a.jpg Installer, A/C Compressor Field Coil
412-078 (T91L-19623-CH) st1233a.jpg Remover, A/C Compressor Field Coil
412-067 (T89P-19623-FH) Removal
  1. Remove the A/C compressor (19703). For additional information, refer to Air Conditioning (A/C) Compressor - 3.8L or Air Conditioning (A/C) Compressor - 4.6L in this section.
  1. Remove the bolt.
    1. Hold the A/C disc and hub assembly (19D786) with the special tool.
    1. Remove the bolt.
    a0030171.jpg
  1. Remove the A/C disc and hub assembly and the A/C clutch hub spacer (19D648).
    1. Thread an 8 x 1.25 mm bolt into the A/C clutch to force it from the compressor shaft.
    1. Lift the A/C disc and hub assembly and the A/C clutch hub spacer from the compressor shaft.
    al0322a.jpg
  1. Remove the pulley snap ring.
    l10153a.jpg
  1. Remove the A/C clutch pulley (2E884).
    l10154a.jpg
  1. ani_caut.gif CAUTION: Do not use air tools. The A/C clutch field coil (19D798) can be easily damaged.
    Remove the A/C clutch field coil.
    1. Note the location of the A/C clutch field coil electrical connector.
    1. Install the special tool on the nose opening of the A/C compressor.
    1. Install the special tool.
    1. Remove the A/C clutch field coil.
    am2024a.jpg
Installation
  1. NOTE: If installing a new A/C compressor, the A/C clutch components should be reused unless obvious signs of damage are found. If excessive grooving is found, a new A/C clutch disc and hub and A/C compressor pulley must be installed together. Otherwise, each component can be installed individually where needed.
    Visually inspect the A/C clutch disc and hub, A/C compressor pulley and A/C clutch field coil for damage.
    • Inspect for physical damage, including cracked or melted components or discoloration due to excessive heat.
    • Inspect for excessive wear, including grooving in the A/C clutch disc and hub or A/C compressor pulley that is more than fingernail depth.
    • Inspect for roughness in the A/C compressor pulley bearing.
  1. Clean the A/C disc and field coil and pulley mounting surfaces.
  1. ani_caut.gif CAUTION: Do not use air tools. The A/C clutch field coil can be easily damaged.
    Install the A/C clutch field coil.
    1. Place the A/C clutch field coil on the A/C compressor with the A/C clutch field coil electrical connector correctly positioned.
    1. Using the special tools, install the A/C field coil.
    gl2051a.jpg
  1. NOTE: The A/C clutch pulley is a tight fit on the A/C compressor head. It must be correctly aligned during installation.
    Install the A/C clutch pulley.
    l10157a.jpg
  1. Install the pulley snap ring with the bevel side out.
    l10158a.jpg
  1. Place one nominal thickness A/C clutch hub spacer inside the clutch hub spline opening.
    gl2100a.jpg
  1. Install the A/C clutch.
    l10159a.jpg
  1. Using the special tool, install the A/C disc and hub assembly retaining bolt.
    a0030060.jpg
  1. Measure and adjust the clutch air gap by removing or adding A/C clutch hub spacers.
    a0031504.jpg
  1. Install the A/C compressor. For additional information, refer to Air Conditioning (A/C) Compressor - 3.8L or Air Conditioning (A/C) Compressor - 4.6L in this section.
hope this helps

Aug 13, 2011 | 2004 Ford Mustang

1 Answer

Ac compressor grinding


You will need a new compressor clutch plate and pulley installed.If you attempt this the specs for spacing between the plate and pulley are 18-24 thousandths gap.You will also need a puller to remove the clutch plate.

Dec 06, 2010 | 1997 Pontiac Bonneville

1 Answer

A/C Compressor Noise


It sound like the A/C Compressor Clutch & Pulley Bearing, If it was the AC compressor bearing. You would see the oil leaking from the compressor and most likely have a non working AC.

How you do it:
Remove the serpentine belt and unbolt the compressor from it's mounts and tilt it up so you can get to the front easier. Use the clutch removal tool to pull off the clutch. Remove the large snap ring in front of the pulley. Spray some WD40 in the hub area and remove the pulley from the compressor. It's best to use the universal puller.

If you don't have the puller or forgot to rent it, bolt the compressor back down to it's mount and carefully pry the pulley away from the compressor. Be careful and don't stress the gas lines. The pulley bearing is pressed onto the aluminum casting of the compressor body so you are not prying against the compressor shaft. The bearing can be hard to remove because the steel bearing in contact with the aluminum frame will cause a dissimilar metal weld.

Clean off all the surfaces and threads using a wire brush and / or some sand paper. Note: The white circular object is the magnetic coil that activates the A/C. Place the new hub on the frame and tap into place with a piece of wood or use the special puller tool which will also press the new hub into the frame. Press the hub in until the groove is exposed enough to install the large snap ring. Install the large snap ring. Make sure it is seated all the way around. Install the clutch assembly taking care to position the shaft key in the compressor slot. Use the special installer tool to press the clutch into place. Leave between .020 and .030 air gap between the hub and the clutch.

Note: Some of the clutch replacement kits come with the coil. The coil is a circular elector magnet that pulls the clutch in and activates the compressor. While trying to get the coil off I removed a snap ring inside the hub which was holding the seal causing all the gas in the system to blow out; so be careful. Mark the electrical terminal location of the coil.

There is a special puller/ installer tool for removing the coil. If you don't have the puller try the following but you are on your own as far as damaging the compressor or seals.

The coil can be removed by working a couple of screw drivers behind the coil against the compressor frame. Be very careful and don’t try and force it. Be extra careful putting the new one on, it has a seal with a brass ring that needs to be pushed on. If you hit it with a socket you might nick it and the seal will probably fail.

The Clutch kit from NAPA lists for 299.67 and they can sell it for 195.91. What a markup when you go somewhere else to have it done. Another thing the clutch puller / installer #78-3213 works really good. It lists for 38.46 and they sell it for 26.99. I was told to make the air gap between the clutch and the pulley assembly between 20-30 thousands. A big note, when you get the clutch off put the tool back on and try and move the shaft up and down and sideways. If it moves around the bearings and seal are probably bad and no need to just replace the clutch.

Good luck and hope this helps keeps you from replacing the whole unit.

Dec 30, 2009 | 1997 Pontiac Grand Am

2 Answers

How do you change the pulley on the air conditioner motor on a 1993 s-10 blazer?


Hello, first of all you need to loosen your fan belt that drives your air conditioning pump. You then need to remove the nut that holds the pulley on. Then using what is called a pulley puller or clamp which is basically a three ponged devise with a nut in the center you screw it inward. The three arms clamp behind the pulley and slowly pull the pulley off. To put the new pulley on you gently tap it in place with a hammer and a piece of wood. Dont belt it hard and dont hit the pulley directly with the hammer. I hope this is helpful.

Nov 05, 2009 | 1993 Chevrolet S-10 Blazer

1 Answer

Do I need anything special toolwise to remove and


yes .you can rent a compressor clutch /pulley remover /installer from one of the auto parts store--pep boys,kragen or auto-zone.

Aug 22, 2009 | 2000 Ford Taurus

1 Answer

How do you go about disconnecting the clutch on an a/c compressor in a 1996 chevy blazer?


Removel:
  • Remove the serpentine belt and unbolt the compressor from it's mounts and tilt it up so you can get to the front easier.
  • Use the clutch removal tool to pull off the clutch.
  • Remove the large snap ring in front of the pulley.
  • Spray some WD40 in the hub area and remove the pulley from the compressor. It's best to use the universal puller.
  • If you don't have the puller bolt the compressor back down to it's mount and carefully pry the pulley away from the compressor. Be careful and don't stress the gas lines. The pulley bearing is pressed onto the aluminum casting of the compressor body so you are not prying against the compressor shaft. The bearing can be hard to remove because the steel bearing in contact with the aluminum frame will cause a dissimilar metal weld.
  • Clean off all the surfaces and threads using a wire brush and / or some sand paper. Note: The white circular object is the magnetic coil that activates the A/C.
Instalation:
  • Place the new hub on the frame and tap into place with a piece of wood or use the special puller tool which will also press the new hub into the frame.
  • Press the hub in until the groove is exposed enough to install the large snap ring.
  • Install the large snap ring. Make sure it is seated all the way around.
  • Install the clutch assembly taking care to position the shaft key in the compressor slot. Use the special installer tool to press the clutch into place. Leave between .020 and .030 air gap between the hub and the clutch.

Good luck and keep me posted, Be glad to answer any questions you may have and if you need help replacing the coil also, (clutch core)

Jul 16, 2009 | 1996 Chevrolet Blazer

1 Answer

92 Ford F-150 a/c clutch pulley removal


i would suggest that you replace the entire ac compressor if you have never installed a compressor clutch before.

there is a fragile ceramic seal behind the ac clutch pulley, and if you crack it you will have to replace the ac compressor anyway.

Apr 11, 2009 | 1996 Pontiac Sunfire

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