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-   -   A/C Compressor Clutch removal (http://www.peachparts.com/shopforum/showthread.php?t=164062)

Ron in SC 09-09-2006 12:33 PM

A/C Compressor Clutch removal
 
Compressor is Denso 7SB16C. Vehicle is an ML 320 compressor is same as on W140 chassis.

How to remove? 10mm bolt on front is off. To I need puller, pry off, take off front part then pulley or all at same time. Not sure how to proceed.

Any hints?

engatwork 09-09-2006 01:41 PM

There is a puller made for it. Check out AutoZone. I believe the have the puller as part of the tool loaner program.

deltajetfixer 09-09-2006 08:33 PM

Quote:

Originally Posted by Ron in SC (Post 1271194)
Compressor is Denso 7SB16C. Vehicle is an ML 320 compressor is same as on W140 chassis.

How to remove? 10mm bolt on front is off. To I need puller, pry off, take off front part then pulley or all at same time. Not sure how to proceed.

Any hints?

I just replaced mine on my '99 E300. The shaft is splined. Sounds like you have a bit of light corrosion between the hub and the shaft. Try a putty knife working around the circumference of the hub/pully gap. Also watch for the shims that will try and fall out when you get the hub off.

Have you verified that the compressor isn't shot?

Ron in SC 09-09-2006 10:08 PM

Quote:

Have you verified that the compressor isn't shot?
The compressor is fine and the A/C works great. I had the serpentine belt off to check the bearings in all the accessories. I found that the idler puller was noisey, no grease in bearings so I replace it. Everything else was fine except the clutch, when I spun it, it made a rumbling noise, felt like no grease in bearings.

I have the front part of clutch off, but the pulley is still on and seems stuck. I have removed the snap ring that retains the pulley. I'm going to Autozone tomorrow as advised above for a puller.

I've not removed the compressor from the vehicle since I'm doing this job, or at least that's my plan with the compressor installed.

deltajetfixer 09-10-2006 07:36 AM

Quote:

Originally Posted by Ron in SC (Post 1271698)
The compressor is fine and the A/C works great. I had the serpentine belt off to check the bearings in all the accessories. I found that the idler puller was noisey, no grease in bearings so I replace it. Everything else was fine except the clutch, when I spun it, it made a rumbling noise, felt like no grease in bearings.

I have the front part of clutch off, but the pulley is still on and seems stuck. I have removed the snap ring that retains the pulley. I'm going to Autozone tomorrow as advised above for a puller.

I've not removed the compressor from the vehicle since I'm doing this job, or at least that's my plan with the compressor installed.

Oh. From your original post I got the impression that the hub was stuck as you had the 10mm bolt out.

Yeah, I wouldn't be too thrilled to start prying between the compressor body and pully as the compressor body is aluminum.

Keep us posted on your progress. As my coil was "baked", I had to remove the radiator to get clearance to access the coil snapring. I could get the pulley snapring off without doing that though.

Best of luck!

Ron in SC 09-10-2006 02:49 PM

Check this thread, it describes job.
http://www.peachparts.com/shopforum/showthread.php?t=164166

I did not remove the coil. I believe I could have removed it with the compressor installed in vehicle. With the ML once you take off the fan shroud there is a lot of room, 6" in front of compressor and that’s with the spring plate and pulley installed.

The pulley came off easily this morning without any puller. I sprayed penetrating lube in the area of the shaft last night and that made it fairly simple to wiggle off the pulley by hand.

deltajetfixer 09-10-2006 06:17 PM

Quote:

Originally Posted by Ron in SC (Post 1272129)
I did not remove the coil. I believe I could have removed it with the compressor installed in vehicle. With the ML once you take off the fan shroud there is a lot of room, 6" in front of compressor and that’s with the spring plate and pulley installed.

WOW! 6"! I just checked and in the W210 you only get 2 1/8"!

I bet I didn't even have 6" with the radiator out!:sad:

Glad yours went smoothly.:beerchug:


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