Volvo 850 Made from 1993 to 1997, this Volvo line was available in both a wagon and a sedan, both with were graced with several trim levels.

A/C Compressor Clutch Reshimming

  #1  
Old 07-09-2006, 01:59 AM
tech's Avatar
Administrator
Thread Starter
Join Date: Sep 2004
Location: Orlando, Florida
Posts: 36,351
Default A/C Compressor Clutch Reshimming

Once compressor is off set it like the following pic and remove the 10mm screw in the middle of the pulley.
Name:  picture520.jpg
Views: 9455
Size:  53.7 KB
Then carefully remove the outer part of the Clutch.(There is a special tool which I didn't have I used to screw drivers but be careful)
Name:  picture521.jpg
Views: 6527
Size:  51.7 KB
Name:  picture522.jpg
Views: 9465
Size:  54.9 KB
Then either the shims will come out with the outer peice like mine did or they will be sitting on the shaft once the outer part is removed.
Name:  picture523.jpg
Views: 8286
Size:  55.5 KB
Name:  picture524.jpg
Views: 7810
Size:  50.1 KB
Name:  picture525.jpg
Views: 6304
Size:  35.1 KB
If you look closely the washers/shims are different thicknesses. You will need to Measure the thickness and then find one a little thinner and reinstall and check the Gap between the outer and inner part of the clutch.
I will have to find out the exact specs but I believe it needs to be .016 Cannot be more than .020.
Use a fueller gauge to measure the gap.

Hopefully this helps.

If you have any questions feel free to ask.

Compressor Specs: Gap should be between .3MM(.012Inches) and .5MM(.020Inches)
.6mm(.024) should not fit in at all
 

Last edited by rspi; 08-08-2011 at 09:07 PM. Reason: typo
  #2  
Old 07-20-2006, 10:45 PM
Senior Member
Join Date: Nov 2005
Location:
Posts: 176
Default RE: A/C Compressor Clutch Reshimming

Tech... excellent post. Just to clarify, I should be measuring between the clutch surfaces, and I'm guessing the gap will be bigger than the spec (due to clutch wear) thus, going with a thinner shim will bring it back into spec?

Wear would I get the correct shims? Thanks - AB
 
  #3  
Old 07-21-2006, 12:24 AM
tech's Avatar
Administrator
Thread Starter
Join Date: Sep 2004
Location: Orlando, Florida
Posts: 36,351
Default RE: A/C Compressor Clutch Reshimming

Yes you are correct.

I used small washers that were close to the size of the shims.
Volvo only sells 4 shims for it.

If I needed to go thinner on the washer I rubbed it on a file to thin it out.
 
  #4  
Old 12-29-2006, 12:06 PM
Senior Member
Join Date: Feb 2006
Posts: 827
Default RE: A/C Compressor Clutch Reshimming

Any spec on the material the washer has to be made of? I imagine it has to been stainless steel, but any other spec?
 
  #5  
Old 12-30-2006, 12:02 AM
tech's Avatar
Administrator
Thread Starter
Join Date: Sep 2004
Location: Orlando, Florida
Posts: 36,351
Default RE: A/C Compressor Clutch Reshimming

Not that I have.
Most of the time you just need to remove one of the one that are already there to bring it into specs.
 
  #6  
Old 03-21-2008, 01:33 PM
xpiecemealx's Avatar
Member
Join Date: May 2005
Location:
Posts: 61
Default RE: A/C Compressor Clutch Reshimming

So would this be my problem if my car doesnt even do anything when I turn the ac on? No engine bogging down or no parts turning. Nothing!
 
  #7  
Old 03-21-2008, 06:37 PM
tech's Avatar
Administrator
Thread Starter
Join Date: Sep 2004
Location: Orlando, Florida
Posts: 36,351
Default RE: A/C Compressor Clutch Reshimming

Does the center of the compressor spin?
Do you have power to the low pressure switch?
 
  #8  
Old 12-28-2008, 02:18 PM
Member
Join Date: Nov 2008
Posts: 59
Default RE: A/C Compressor Clutch Reshimming

A 30 minute job put my 96 850 AC clutch back in order. I had heard that if AC is on, compressor wheel is turning but will not engage, I could take a broom stick and lightly push it against clutch plate wth motor running and AC on at lowest temperature setting. If clutch plate kicks in and engages the compressor, them shimming is needed hold plate clearances within spects. I jacked up the right front, put in a safety jack stand,and working from underneath, I checked the clearance. It was 30 thousands over spects. With Simple Green and water ,I cleaned the clutch face and blew it dry. Working from underneath(which gives access to the clutch) and using a screwdriver to lift the existing spacing tabs, I inserted a small, bread bag tie clip size and thickness, shim under each tab and secured them in place with epoxy. Some use crazy glue. This is hold shims in place when clutch is not engaged. A recheck showed spect. clearance and the AC works perfectly. This may not be Mfg's recommendations; however, it worked for me and saved dismantling the clutch assembly.
 
  #9  
Old 06-30-2009, 04:33 PM
Junior Member
Join Date: Apr 2009
Posts: 13
Default A/C intermittent

would this work the same for a 2005 v50? The A/C cuts out intermittently. If I tap the compressor with a wrench it will start spinning again. Also can I do this on the vehicle, removing belts first of course.
 
  #10  
Old 06-30-2009, 08:44 PM
tech's Avatar
Administrator
Thread Starter
Join Date: Sep 2004
Location: Orlando, Florida
Posts: 36,351
Default

It works exactly the same way. On the 05 you should be able to unscrew it from the oil pan and leave all the lines connected.
 
  #11  
Old 07-01-2009, 10:51 AM
Junior Member
Join Date: Apr 2009
Posts: 13
Default a/c compressor

Worked like a charm. Mine had 3 shims. I removed 2 and it is working great. I had to use a puller to remove it and the outside looked slightly different with 2 belt pulleys. Thanks for saving me hundreds of dollars!
 
  #12  
Old 07-02-2009, 04:51 PM
Junior Member
Join Date: Jul 2009
Posts: 2
Default

Hey Jimboy, could you please tell me what type clutch puller you used and where you got it? I'm desperately trying to pry mine off today and it doesn't come off... I have 2004.5 T5 similarly than you... Thanks in advance!
 
  #13  
Old 07-03-2009, 09:02 AM
tech's Avatar
Administrator
Thread Starter
Join Date: Sep 2004
Location: Orlando, Florida
Posts: 36,351
Default

I use a small one like the one in the picture.
 
  #14  
Old 07-10-2009, 07:42 PM
Junior Member
Join Date: Dec 2008
Posts: 26
Default

My 2001 V70 compressor works flawlessly until today, when we hit 107. Now it kicks off and won't kick back on until the unit has had a few minutes to cool. Is this a shim issue or is the unit overheating, causing some safety device to disengage the clutch.

Thank you!
 
  #15  
Old 07-10-2009, 08:16 PM
850tony's Avatar
Senior Member
Join Date: May 2009
Location: wisconsin
Posts: 787
Default

prolly overheating....
 
  #16  
Old 07-11-2009, 08:46 PM
Junior Member
Join Date: Dec 2008
Posts: 26
Default

Originally Posted by 850tony View Post
prolly overheating....
So, if overheating, how is this fixed. Shop service with coolant and oil change or something else? An A/C that doesn't work when it's hot out is kinda foolish. Thank you for the help.
 
  #17  
Old 07-11-2009, 09:17 PM
850tony's Avatar
Senior Member
Join Date: May 2009
Location: wisconsin
Posts: 787
Default

prolly an ac change...
 
  #18  
Old 07-12-2009, 02:06 AM
blackbrick's Avatar
Senior Member
Join Date: Apr 2009
Location: Phoenix,Arizona
Posts: 448
  #19  
Old 07-14-2009, 04:14 PM
Junior Member
Join Date: Dec 2008
Posts: 26
Default

Originally Posted by blackbrick View Post
Thanks blackbrick. The information was insightful. Looks like I have some tinkerig to do and budgeting to do for some AC work in the near future.
 
  #20  
Old 07-18-2009, 02:43 PM
Junior Member
Join Date: Jul 2009
Posts: 11
Default







More AC A/C Compressor, Low Sensor, High Sensor Pics at: https://volvoforums.com/forum/album.php?albumid=156
 

Last edited by rspi; 08-08-2011 at 09:18 PM. Reason: spacing - pics

Thread Tools
Search this Thread
Quick Reply: A/C Compressor Clutch Reshimming


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.