A/C Compressor Fun

Puffster · May 19th, 2024, 07:58

A/C compressor clutch has gone and with summer coming up and two dogs in the back, time to replace it. Not going to fanny around with shims.
Garage got the part number and compressor duly arrived BUT it has a different pulley! Instead of running around all the other pulleys with a multi rib belt, mine has its own little v-belt running from one of the other pulleys... That's as the garage explained it.
Checked the part number again on the compressor and the right one was given, it just appears that for some cars, there is a different setup.
After a lot of ringing around, one now on its way.
How weird!

GrahamBrown1 · May 19th, 2024, 08:09

As far as I am aware the AC has always been driven off the power steering pump via its own stretch belt.

The outer Aux belt has only ever driven the alternator and power steering pump on the cars I’ve had.

The only difference and I think this could be your problem is a change in power steering pump, later cars have the hydro electric system which uses the thinner belt where as earlier cars had the standard hydraulic system which uses a much larger/wider stretch belt.

With yours an ex service car there could be some other changes maybe?

Puffster · May 19th, 2024, 09:43

I did wonder that. On the Volvo Special Vehicles spec I got from Volvo nothing is mentioned, bar the uprated alternator but as you say, that's on a different belt anyway.

May 19th, 2024, 07:58	#1
Puffster Senior Member Last Online: Yesterday 17:54 Join Date: Feb 2012 Location: Carmarthenshire	A/C Compressor Fun A/C compressor clutch has gone and with summer coming up and two dogs in the back, time to replace it. Not going to fanny around with shims. Garage got the part number and compressor duly arrived BUT it has a different pulley! Instead of running around all the other pulleys with a multi rib belt, mine has its own little v-belt running from one of the other pulleys... That's as the garage explained it. Checked the part number again on the compressor and the right one was given, it just appears that for some cars, there is a different setup. After a lot of ringing around, one now on its way. How weird! __________________ Blue 2011 Volvo XC70 D5 AWD Police Spec - Current Grey 2005 Volvo XC70 D5 AWD SE - Gone after 230,000 miles

May 19th, 2024, 08:09	#2
GrahamBrown1 VOC Member Last Online: Yesterday 21:27 Join Date: Feb 2013 Location: North Yorkshire	As far as I am aware the AC has always been driven off the power steering pump via its own stretch belt. The outer Aux belt has only ever driven the alternator and power steering pump on the cars I’ve had. The only difference and I think this could be your problem is a change in power steering pump, later cars have the hydro electric system which uses the thinner belt where as earlier cars had the standard hydraulic system which uses a much larger/wider stretch belt. With yours an ex service car there could be some other changes maybe? __________________ Previous -03 S40, 04 V70 D5, 04 V70 D5 Sport, 05 V50, 07 S60 D5, 09 V70 D5 R design, 12 XC60 DrivE, 15 V60 D3 Current- 05 XC90 D5 Exec, 12 XC70 D4 AWD Se Lux, 14 S80 D3 Se Lux

May 19th, 2024, 09:43	#3
Puffster Senior Member Last Online: Yesterday 17:54 Join Date: Feb 2012 Location: Carmarthenshire	I did wonder that. On the Volvo Special Vehicles spec I got from Volvo nothing is mentioned, bar the uprated alternator but as you say, that's on a different belt anyway. __________________ Blue 2011 Volvo XC70 D5 AWD Police Spec - Current Grey 2005 Volvo XC70 D5 AWD SE - Gone after 230,000 miles

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