Now there is an interesting analysis!!!

Not really, when you consider that everything runs off one serpentine belt. It not only happened once, but twice. It was tested, as I suspected the compressor on that belt. And yes, the compressor was under a lot more pressure to work with the 134A, than Freeze 12 or R-12. So . . . no, am not smoking anything funny. The second one was about to snap when I brought it in for the valve job/clutch replacement. They had to weld it up to withstand the pull on it from the compressor . . . they tested it, and sure enough . . . but as with many shops, they were never a fan of the conversions.

Torie
(retired USAR)

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1983 300D, the "Avocado"
1976 240D, 4-spd the "Pumpkin", SOLD to Pierre
1984 190D, 2.2L, 5-spd, my intro to MBZ diesels, crashed into in 2002

Personally, i take it mine to a working class neighborhood indy shop. Since those of us who don't have a hundred grand to throw down for a new benz every year keep the old ones a long time. They've gotten it right every time. Took it to a new place today (!!) we'll see how they did when i get it back tomorrow.

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In the Garage:
'84 300SD, 85K "The Princess"
2011 BMW 328I XDrive, DD

Here is an interesting site page... from the website of Steve Brotherton... former moderator here...

http://www.continentalimports.com/ser_index.html

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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