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#1
06-06-2009, 05:37 PM
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R4 compressor oil leak?
Where does this dude like to usually leak oil from?
Thanks
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I'm not a doctor, but I'll have a look.  '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG] 
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#2
06-06-2009, 06:59 PM
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from the seals mainly
__________________
1986 300SDL, 211K,Dealership serviced its whole life 1991 190E 2.6(120k) 1983 300D(300k) 1977 300D(211k)
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#3
06-06-2009, 07:02 PM
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Quote:
__________________
Jimmy L. '05 Acura TL 6MT  2001 ML430 My Spare Gone: '95 E300 188K "Batmobile" Texas Unfriendly Black '85 300TD 235K "The Wagon" Texas Friendly White '80 240D 154K "China"  Scar engine installed'81 300TD 240K "Smash" '80 240D 230K "The Squash" '81 240D 293K"Scar" Rear ended harder than Elton John
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#4
06-06-2009, 07:05 PM
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Ah coy today are we?
Front shaft? Body? 
__________________
I'm not a doctor, but I'll have a look. '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]
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#5
06-06-2009, 07:10 PM
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Quote:
the only thing than logically leak is the seals under normal conditions unless you put a hole into the casting of the compressor... bearings usually go before they began to leak.
__________________
1986 300SDL, 211K,Dealership serviced its whole life 1991 190E 2.6(120k) 1983 300D(300k) 1977 300D(211k)
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#6
06-06-2009, 07:13 PM
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Hm okay, I have some thin mystery oil in that area and had me alarmed after a few week rebuild and I'd be madder than a wet hen if the compressor was leaking. Shaft has no oil under and rear orings are fine. Guess it can only be PS due to the location.
Guess I'll just run it until it blows up. 
__________________
I'm not a doctor, but I'll have a look. '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]
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#7
06-06-2009, 07:16 PM
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Quote:
__________________
1986 300SDL, 211K,Dealership serviced its whole life 1991 190E 2.6(120k) 1983 300D(300k) 1977 300D(211k)
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#8
06-06-2009, 07:17 PM
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At your leisure would be great.
__________________
I'm not a doctor, but I'll have a look. '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]
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#9
06-06-2009, 07:39 PM
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Quote:
__________________
1986 300SDL, 211K,Dealership serviced its whole life 1991 190E 2.6(120k) 1983 300D(300k) 1977 300D(211k)
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#10
06-06-2009, 07:41 PM
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Sounds great, thanks again.
__________________
I'm not a doctor, but I'll have a look. '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]
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#11
06-06-2009, 08:11 PM
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In the usual course of life it would leak at the main shaft ... since it has an ' engineered ' leak there to keep the front seal lubed... which means one should start and engage the air compressor once a month even in the winter..
If something has been changed out then the seals at the manifold are going to be suspect...
__________________
1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/diesel-discussion/10414-help-i-need-check-stretch.html http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html
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#12
06-06-2009, 08:20 PM
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Quote:
This would drip straight down if it was main shaft seal would it not?
__________________
I'm not a doctor, but I'll have a look. '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]
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#13
06-06-2009, 08:29 PM
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Straight down from whereever it followed the compressor body and encountered a change in direction back upwards...
__________________
1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/showthread.php?threadid=10414 http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html
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#14
06-06-2009, 08:30 PM
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After I R&R'd the original compressor on my '83 to replace the shaft seal, I still noticed some oil on the steel housing. In order to keep from wasting R-12, I replaced it with a new one. Upon removing the steel shell from the original, it was like brand new inside. What was leaking were the large "O" rings that seal the housing to the body. I replaced them, and kept the unit as a spare. If anyone is interested, I'll get the Mcmaster-Carr part # for you.
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#15
06-06-2009, 09:00 PM
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power steering can leak from the cover gasket or the front seal, and get thrown all over the place from the pulley.
I'd imagine it would be similar for the AC comp.
__________________
1984 123.193 372,xxx miles, room for Seven. 1999 Dodge Durango Cummins 4BTAA 47RE 5k lb 4x4 getting 25+mpgs, room for Seven.
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