that tractor is better looking then you too jimmy
just hadda put in my .02 cents seeing everyone is bashing stuff

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commercial fisherman diesel in my blood in my boats trucks and Dear old Dad has had me drivin them since i got my first license in 1968
1986 300 SDL 427654
1999 Chevy Crew Cab Dually 225423
1986 300 SDL 287000 Dad's
1987 190 Turbo 158000 Mom's (my inheritance)

Wow, after reading all these posts, I have no idea what to do. I have essentially 4 M-B a/c units in 4 cars. Two are converted and labeled 134 by POs, the other two are R-12. None of them work. While I have the gauges and pump back from the mid 1980's for R-12, I have not worked on a system for decades. All systems are complete and all compressors, York, turn. I want to make two working systems out of the collection. What to do?

BTW, I purchased my 1993 Dodge (Cummins) new. It has been a trouble free engine (Bosch IP broke one spring), and almost trouble free truck for 320K miles. It has the original a/c system with all the original parts. Two years ago, the heater core sprung a tiny leak, just enough to drip out the heater duct at random times. To change the core, the entire evaporator/heater box must come out from behind/under the dash, meaning the a/c system must be discharged. A local a/c shop removed the R-12 for $50, since I can't recover it. I did the heater repair, then pumped down the a/c system for several days. I then had the shop "return" my R-12 for another $50. It's still working! These systems can live a long time.

Ron

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1971 220D, daily driver, new paint, 142K
1973 220D, low compression
1975 300D, back on the road! 166K
1971 220D, salvage, rear hit, engine excellent
1972 250, bad cam, but runs!
1971 230, engine stuck
1971 220D, low compression, rusty
1976 240D, salvage, engine excellent
1966 230SL, water in oil after rebuild

15years and only one tear-out is pretty good for a ChryCo A/C system, they're doing better.

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Gone to the dark side

- Jeff

Ron, first check for leaks....
You might want to rent or buy a tank of nitrogen for this... you can add four ounces of R22 to a fill of nitrogen and use a leak detector to search for it....
You can discharge it into the atmosphere after you find the leak...
Lots of people will now post saying you can't do that... but the rules allow that to encourage finding leaks.... better to put four oz into the atmosphere and be dealing with a sealed system than keep putting refrigerant into a slowly leaking system forever...
I have never heard of anyone having four York compressors ... they are very sturdy compared to the Delco... you will need to bend your own ' oil dip stick' to get the right level of oil in them... instructions are in the MB AC Manual...

Where you been Cap'n? You finally get that boat off the sand bar and make it back to port......

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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

Mine has the CC servo , nuff said

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Willie White
1980 300SD 116
82 D engine and transmission
If something can go wrong--it will

EVIL SERVO
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