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What's the best way for a DIYer to fix a leaking compressor

Carlton on Thu May 22, 2008 6:17 PM User is offlineView users profile

Year: 1992
Make: Opel
Model: Omega A
Engine Size: 2600
Refrigerant Type: 134a
Country of Origin: United Kingdom

I'm in UK where my options a limited by lack of expertise in the country. I have replaced compressor with used model but that leaks as well. I think it is a Harrison V5 (although why do they all look different?). Ive been quoted £250 for a rebuild or £800 new. Would I be better off importing one from the US if I could find an equivalent? I guess the exchange rate doubles these figures?

I think there is a suspect pressure switch to operate the condenser fan as it never comes on even though the fan works. I'm also not convinced the ac tech used the correct grade of PAG oil as they use the same machine on everything and i note GM compressors use the heavier grade. The new looking compressor in the pic is the 'Harrison daewoo 134a' model and the other is the original Harrison R12 model. If I go for the rebuild option, which do you suggest I have rebuilt? Is rebuilding it myself realistic and is there a surplus of brand new models in the US somewhere?

Petrol over here reached £1.28 per litre or £5.76 ($13 a gallon) today so I want to make sure I enjoy my car journeys!

Chick on Thu May 22, 2008 6:59 PM User is offlineView users profile

Those are V5 compressors, and the black one seems to be leaking around the body O rings, while the newer Dawoo compressor seems to be leaking around the control valve. Can't see the front seal, or the switches in the rear, but all those O rings are available. You will need special tools if the front seal is leaking, otherwise a pair of snap ring pliers, remove the control valve and switches and change the O rings..Hope this helps..

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

Karl Hofmann on Fri May 23, 2008 9:15 AM User is offlineView users profile

Send your Harrison to MotorClimate at Bordsley heath in Birmingham, they have always done a top job rebuilding compressors that are hard to find... The V5 is as common as muck to find but the configuration of ears, and head drillings vary but if you have found the identical compressor from a Daewoo then you could fit a new compressor from this car... What was it off?

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Never knock on deaths door... Ring the doorbell and run away, death really hates that!

mk378 on Fri May 23, 2008 11:55 AM User is offline

Case leaks often start with corrosion from the outside, which eventually gets under the o-ring and then you have a leak. The only cure may be a new part because the sealing surface is corroded away. It would have to be disassembled to inspect first. The one on the left of the picture, if it is leaking around the control valve, should be easy. Remove the snap ring and pull the valve out.

bohica2xo on Fri May 23, 2008 2:34 PM User is offline

Post the part numbers on the two compressors, my catalogs don't show non-US cars like the Opel... We can find you a US cross reference.

A new V5 compressor is only worth about 350 USD. Quality remanufactured stuff around 200 USD.

B.



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"Among the many misdeeds of the British rule in India, history will look upon the act of depriving a whole nation of arms, as the blackest."
~ Mahatma Gandhi, Gandhi, An Autobiography, M. K. Gandhi, page 446.

Carlton on Tue May 27, 2008 12:34 PM User is offlineView users profile

The original black one is an R12 model for the car and it has model number 1131739 on it. It says it was made in New York. I understand that they a pretty much all r134a versions since 1994.
A fellow Omega A enthusiast may consider buying one too if there is a saving on shipping. Where would I go from here should there be a suitable cross reference? What is shipping likely to cost as they are pretty heavy and would two cost twice as much to ship as one?

bohica2xo on Tue May 27, 2008 3:05 PM User is offline

Carlton:

The last 25 pound box I shipped to Swindon (SN2-2AF) UK cost me 85 USD for USPS service, and took about ten days.

This Company carries it under a CarGo number 240599. Since you are closer to North Wales than the USA, it is worth a try first.

B.

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"Among the many misdeeds of the British rule in India, history will look upon the act of depriving a whole nation of arms, as the blackest."
~ Mahatma Gandhi, Gandhi, An Autobiography, M. K. Gandhi, page 446.

Carlton on Wed May 28, 2008 10:21 AM User is offlineView users profile

Contacted them this morning and the model no longer available, so here are my options;
(For USA, VAT is Value Added Tax @ 17.5%)

Brand new from GM dealer £800+VAT ($1800 dollars)
Airconditioningsupplies.com will cost £295+VAT for rebuild - approx $700 dollars
Compressortech (Birmingham, West Mids) £195+VAT for rebuild - approx $500 dollars
or, from USA
Rebuilt unit from USA $200 + $85 carriage - $285 dollars (or £150)
New unit from USA $350 + $85 carriage - $435 dollars (or £220)

I'll contact the shop to see what they come back with

Carlton on Thu June 05, 2008 10:49 AM User is offlineView users profile

Hi - I have concluded the search

I went to compressortech.com in Birmingham, Westmidlands. £170+VAT for a rebuild.

But then sickeningly a brand new one from a GM dealer appeared on Ebay for £70 2 days later so I got that as a spare. So..2 for £250. But the one I bought had a guarantee (albeit with so many clauses it isn't worth a great deal)

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