It is time to replace the leaking GM / Harrison R4 A/C compressor (leaking out back plate seal) on my 1983 300SD beater. I know that it is far better to buy new but because of budget $ , I will have to go with a rebuilt specd on a GM vehicle to get the best price - ebay?) . Which GM models ( for what vehicle and year ) and years will fit ( and possible A/C delco part #s too ) ? Thanks

(btw - I had another post here - GM & Aftermarket A/C Compressors vs MB compressors on a Sanden switchout but never found that Sanden adapter that my friend had on his 1985 300D )

http://www.ackits.net/merchant2/merchant.mvc?Screen=PROD&Store_Code=AMA&Product_Code=15-20206

worth a look.

Also, techchoiceparts (or something like that) in Midlothian, TX sells on Ebay often. The phone # is in the archives somewhere. They know their compressors!!

EDIT: Found it: post #4........Notes on AC Compressor Replacement - Turning and adding oil

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The Golden Rule

1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later)

YES. Tech Choice Parts in Midlothian.
Great price, cheaper than rebuilt. Really know their stuff.

I did the same in my 300SD, 1983.

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80 300D 340K Owned 30 yrs
83 300SD 440K Owned 9 yrs - Daily Driver 150mi/day
02 Z71 Suburban 117,000
15 Toyota Prius 2600 miles
00 Harley Sportster 24k
09 Yamaha R6
03 Ninja 250

I have been through a few R4s new and rebuilt. The new ones come with those leak prone suction side GM seal washers for the ports, The rebuilds have the o-rings. My new ackits $300 GM seal R4 locked up after a year and leaked (R12)! I now have the $154 Behr (o-ring) rebuild form www.europartsdirect.com. So far So good! No leaks! Keeping my fingers crossed! The quality of the Behr seems better than the Apco Air, Champion, Four Seansons and others R4 rebuilds I have had. To aide in compressor life I used BVA 4 napthetic mineral oil 300 visc. Good luck.

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1993 Mercedes Benz 300D 2.5 205K (ex wife's)
1984 Mercedes Benz 300SD 320K (SOLD)
2004 Mercedes Benz C240 75K
1995 GMC Sierra 2WD 5.7L 188K
1983 Mercedes Benz 300SD 239K (SOLD)
1987 BMW 325i 220K (SOLD FOR SALVAGE)

609 Certification

can anyone recommend a good compressor oil ? Or can I just use the stuff that comes with my recharge kit??? Im looking at the enviro-safe product.

This guy likes Frigi Quiet: http://dieselgiant.com/repairyourac.htm

Also, Can I just add oil to my compressor to ensure it is not dry and not seize it prematurely?



Cheers!

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Thank you for all the help guys!

"Old Gretchen" <--1983 300SD w126 cali. emissions (so it says on wdw sticker)
LIght metallic blue with dark blue interior. Odo stuck at 160,500 mi.

www.handydo.joolo.com

James L

Thanks for the Europarts Direct source.

What is the difference between the two receiver driers offered? Hansa is a lot more expensive than Behr - why?

Ken300D

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1982 300D at 351K miles
1984 300SD at 217K miles
1987 300D at 370K miles

The Hansa (made in Germany) has a clear site glass on top to see refrigerant flow, The lesser expensive one may not have the sight glass.

rbardolov, I recommended a good compressor oil (BVA mineral oil for R12). for other refrigerant blends or 134A, I do not know.

__________________
1993 Mercedes Benz 300D 2.5 205K (ex wife's)
1984 Mercedes Benz 300SD 320K (SOLD)
2004 Mercedes Benz C240 75K
1995 GMC Sierra 2WD 5.7L 188K
1983 Mercedes Benz 300SD 239K (SOLD)
1987 BMW 325i 220K (SOLD FOR SALVAGE)

609 Certification

I bought a new R4 from the local autoparts store last year (advanceautoparts) - still works.

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It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so. Robert A. Heinlein


09 Jetta TDI
1985 300D