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Noisy AC compressor

katar83
Posts: 2714
Joined: Tue Aug 23, 2011 11:17 am
Location: Cambridge

Noisy AC compressor

Postby katar83 » Sun Nov 18, 2018 9:44 pm

Thought I'd mention it here in case anyone has same problem. X300 use Denso 10PA compressor but the XJ40 can have the same issues.

I've been living with a noisy compressor for 3, maybe 4 years now, since its been working fine and I thought repair would either mean a replacement or at least compressor removal and then regas which would be a major PITA, I thought I'd just leave it until it fails completely. As it turned out the clutch bearing can be replaced with the compressor still connected to the system and I've only just found out a week ago :o

I've purchased a replacement bearing(30x52x22mm), which cost £12.56 and proceeded with repair which turned out to be very simple, rather very rare thing for a Jag :shock:

Had my brother hold the clutch and I've undid a bolt in the middle holding it, all done from underneath the car, then I tried for 25 minutes to get to the circlip holding the clutch only to give up. I've undone 4 bolts holding the compressor, moved it back by maybe 15cm and could finally see this devilish contraption and could get my circlip pliers onto it! :evil:

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Circlip then removed easily and the whole clutch came off. I did make sure not to loose two tiny special washers while taking it off.

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Bearing was hammered out and new one hammered back in(using the old one).

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Fitted it all back

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and the noise is finally gone! :mrgreen: 8-) :D

Surprisingly the old bearing seemed fine, no damaged to rollers or seal, only movement was back and forth but only by maybe half a mm but that was enough to create all that annoying noise :o

Very happy with results! :)
1997, 4.0 LWB X300 - Unlucky car but still a daily driver.
1988, 3.6S XJS - Never ending restoration project.
1994, 3.2S X300 - Accident damaged, October 2015. Gone!
1994, 3.2S XJ40 - Long gone.

NMV 1E
Snr Member
Posts: 902
Joined: Fri Apr 17, 2009 9:26 pm
Location: Lydiate, Merseyside.

Re: Noisy AC compressor

Postby NMV 1E » Mon Nov 19, 2018 10:14 am

Well done that man, my kind of repair sir, cheap, effective, but frustratingly fiddly. ;)
Life begins at Forty !... I was born with nothing, I seem to have most of it left.


2006 Baby Blue Hyundai Getz 1.4 CDX, Auto (yes I know, I know, but you'd be surprised, I was !)
1989 White and Navy Blue V.W. Golf Cabriolet (G.T.i.)
1992 Tornado Red V.W. Golf "tintop" 5 door (G.T.i.) For Sale !

naki_k
Super Moderator
Posts: 28512
Joined: Sun Feb 21, 2010 9:25 pm
Location: Kirton, nr Boston, Lincolnshire

Re: Noisy AC compressor

Postby naki_k » Tue Nov 20, 2018 11:46 am

Great fix, well done.
I have a couple that need doing at least.

Where did you get the bearing? Is there a part number?
The nearest I found is a “clutch service kit”.

https://www.jaguarclassicparts.com/uk/part/JLM11954
88 3.6 XJ6 PDH/CEM
90 Range Rover Vogue SE 3.9 V8 LPG
91 4.0 XJ6 Manual
92 4.0 XJR Manual
92 4.0 XJR
93 3.2s - 4.0 Manual conv
93 4.0 Sovereign
93 6.0 XJ81 DD6 x2
93 6.0 XJ81 XJ12
94 4.0 XJR
94 4.0 Daimler
96 4.0 X306 XJR
96 4.0 X300 D6
97 4.0 X300 Sport Manual
2000 LR Discovery ES TD5 A
Breaking 40/ 300

katar83
Posts: 2714
Joined: Tue Aug 23, 2011 11:17 am
Location: Cambridge

Re: Noisy AC compressor

Postby katar83 » Tue Nov 20, 2018 12:28 pm

naki_k wrote:Great fix, well done.
I have a couple that need doing at least.

Where did you get the bearing? Is there a part number?
The nearest I found is a “clutch service kit”.

https://www.jaguarclassicparts.com/uk/part/JLM11954


Noise from these bearings can be extremely irritating, especially if you drive in town with your windows down in the summer so I can highly recommend it Naki :)
I got bearing from eBay, its 949100-4570 Nippondenso 30x52x22mm, not sure what its in that clutch service kit from JCP, a pic from SNG barrat of the same part number only shows, special washers, circlip and a bolt but that doesn't make much sense to me. A full clutch kit for that Denso 10PA, that include the coil, clutch and drive plate can be bought for ~£70 so if that JCP kit has anything more than what's in SNG Barrat pic it would be well worth its ~£25 price. I suspect that would be too good to be true though :)
1997, 4.0 LWB X300 - Unlucky car but still a daily driver.
1988, 3.6S XJS - Never ending restoration project.
1994, 3.2S X300 - Accident damaged, October 2015. Gone!
1994, 3.2S XJ40 - Long gone.

naki_k
Super Moderator
Posts: 28512
Joined: Sun Feb 21, 2010 9:25 pm
Location: Kirton, nr Boston, Lincolnshire

Re: Noisy AC compressor

Postby naki_k » Thu Nov 22, 2018 1:21 am

I just ordered three bearings. As I think most will be on their way out now.
Plus the 10% discount on multibuy orders. ;)

https://www.ebay.co.uk/itm/Compressor-P ... SwhvFZLnjI
88 3.6 XJ6 PDH/CEM
90 Range Rover Vogue SE 3.9 V8 LPG
91 4.0 XJ6 Manual
92 4.0 XJR Manual
92 4.0 XJR
93 3.2s - 4.0 Manual conv
93 4.0 Sovereign
93 6.0 XJ81 DD6 x2
93 6.0 XJ81 XJ12
94 4.0 XJR
94 4.0 Daimler
96 4.0 X306 XJR
96 4.0 X300 D6
97 4.0 X300 Sport Manual
2000 LR Discovery ES TD5 A
Breaking 40/ 300

katar83
Posts: 2714
Joined: Tue Aug 23, 2011 11:17 am
Location: Cambridge

Re: Noisy AC compressor

Postby katar83 » Thu Nov 22, 2018 8:33 am

naki_k wrote:I just ordered three bearings. As I think most will be on their way out now.
Plus the 10% discount on multibuy orders. ;)

https://www.ebay.co.uk/itm/Compressor-P ... SwhvFZLnjI


You're correct Naki, original compressor on this car was shot, when I bought it, couldn't even move the clutch by hand, bearing was so damaged and I've binned it and replaced with this one which also developed this noise shortly after! Probably just the bearing needed replacing.
Anyway, add a pic or two when you get to it! :)
1997, 4.0 LWB X300 - Unlucky car but still a daily driver.
1988, 3.6S XJS - Never ending restoration project.
1994, 3.2S X300 - Accident damaged, October 2015. Gone!
1994, 3.2S XJ40 - Long gone.

naki_k
Super Moderator
Posts: 28512
Joined: Sun Feb 21, 2010 9:25 pm
Location: Kirton, nr Boston, Lincolnshire

Re: Noisy AC compressor

Postby naki_k » Thu Nov 22, 2018 12:58 pm

katar83 wrote:
naki_k wrote:I just ordered three bearings. As I think most will be on their way out now.
Plus the 10% discount on multibuy orders. ;)

https://www.ebay.co.uk/itm/Compressor-P ... SwhvFZLnjI


You're correct Naki, original compressor on this car was shot, when I bought it, couldn't even move the clutch by hand, bearing was so damaged and I've binned it and replaced with this one which also developed this noise shortly after! Probably just the bearing needed replacing.
Anyway, add a pic or two when you get to it! :)


I have two on a shelf and one on a car at least with bearing noise/ slight play on the pulley.
That slight play does seem to be enough to create the noise. Even if slight. I think most bearings with collapse and seize of they are still used when worn.
I hadn’t ever looked into a repair, but it’s surprising it’s so simple and cheap. With the 40 Sanden units I think it’s a send away job for refurbishing?
88 3.6 XJ6 PDH/CEM
90 Range Rover Vogue SE 3.9 V8 LPG
91 4.0 XJ6 Manual
92 4.0 XJR Manual
92 4.0 XJR
93 3.2s - 4.0 Manual conv
93 4.0 Sovereign
93 6.0 XJ81 DD6 x2
93 6.0 XJ81 XJ12
94 4.0 XJR
94 4.0 Daimler
96 4.0 X306 XJR
96 4.0 X300 D6
97 4.0 X300 Sport Manual
2000 LR Discovery ES TD5 A
Breaking 40/ 300

katar83
Posts: 2714
Joined: Tue Aug 23, 2011 11:17 am
Location: Cambridge

Re: Noisy AC compressor

Postby katar83 » Thu Nov 22, 2018 4:35 pm

naki_k wrote:
katar83 wrote:
naki_k wrote:(...)I hadn’t ever looked into a repair, but it’s surprising it’s so simple and cheap. With the 40 Sanden units I think it’s a send away job for refurbishing?


Its exactly the same repair with a 40 compressor. Have a look here:

https://www.jaguarclassicparts.com/uk/part/JLM1174

Bearing = part 3, JLM2134 - £56.78 still available from JCP, although not for early cars, these are no longer available.

JLM1174 is a clutch kit, still available from JCP too, although expensive!

Image
1997, 4.0 LWB X300 - Unlucky car but still a daily driver.
1988, 3.6S XJS - Never ending restoration project.
1994, 3.2S X300 - Accident damaged, October 2015. Gone!
1994, 3.2S XJ40 - Long gone.

naki_k
Super Moderator
Posts: 28512
Joined: Sun Feb 21, 2010 9:25 pm
Location: Kirton, nr Boston, Lincolnshire

Re: Noisy AC compressor

Postby naki_k » Sat Nov 24, 2018 6:14 pm

Ok, good stuff. I have never looked into it before, though I don’t think the pulley bearings go as much as the X300 versions. They can/ do leak on the main shaft seals though.
88 3.6 XJ6 PDH/CEM
90 Range Rover Vogue SE 3.9 V8 LPG
91 4.0 XJ6 Manual
92 4.0 XJR Manual
92 4.0 XJR
93 3.2s - 4.0 Manual conv
93 4.0 Sovereign
93 6.0 XJ81 DD6 x2
93 6.0 XJ81 XJ12
94 4.0 XJR
94 4.0 Daimler
96 4.0 X306 XJR
96 4.0 X300 D6
97 4.0 X300 Sport Manual
2000 LR Discovery ES TD5 A
Breaking 40/ 300

naki_k
Super Moderator
Posts: 28512
Joined: Sun Feb 21, 2010 9:25 pm
Location: Kirton, nr Boston, Lincolnshire

Re: Noisy AC compressor

Postby naki_k » Tue Nov 27, 2018 12:09 am

My 3 pack of bearings arrived today.
I successfully completed one of these. Although oddly the pulley seemed to be sticking on something, so didn't come off without a bit of encouragement. :? Although on a bench it will be easier than on a car.
I have the luxury of a bearing press though, so getting the bearings out/ in is nice and smooth. its not aparticularly tight fit, so it does not take much force.

Image

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Image

Image

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All done and back together. Thanks to Lucas for the inspiration.

Though this is a spare unit. Should i now attempt it on the car? or just swap the whole compressor?
Last edited by naki_k on Tue Nov 27, 2018 10:47 am, edited 2 times in total.
88 3.6 XJ6 PDH/CEM
90 Range Rover Vogue SE 3.9 V8 LPG
91 4.0 XJ6 Manual
92 4.0 XJR Manual
92 4.0 XJR
93 3.2s - 4.0 Manual conv
93 4.0 Sovereign
93 6.0 XJ81 DD6 x2
93 6.0 XJ81 XJ12
94 4.0 XJR
94 4.0 Daimler
96 4.0 X306 XJR
96 4.0 X300 D6
97 4.0 X300 Sport Manual
2000 LR Discovery ES TD5 A
Breaking 40/ 300