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#1
05-11-2007, 05:11 PM
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Expansion valve. And now COMPRESSOR SEALS!!!!
Thanks for scaring the %$#@ out of me about removing the expansion valve. I was so worked up about it from what I read here, that actually getting it off, drilling it out and re-installing it turned out to be nowhere near as hard as I'd expected!!
That's not to say it was a breeze, but not nearly as tough as I'd anticipated. I also think I found my leak -- the top two lines barely needed any force at all to break free. Tomorrow to my mechanic's to flush; install new valve, dryer and compressor; add oil and r12 charge; and hopefully that's that. Oh yeah, changed out my sieve-like primer pump also. Yeah!
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____________ 1998 E300 +310,000K1996 E300 +460,000K Last edited by Bill Ladd; 05-12-2007 at 04:59 PM. 
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#2
05-12-2007, 04:56 PM
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Seals
Okay. So I shoulda done a little more research on here and had the seals I needed on hand. See this post for an explanation... Tangofox's seal dilemma.
When I opened the R4 compressor, I saw a green seal, two red and two pilot bushings. Uh oh. I was pretty sure I was in for it, so I pumped a little gas in the system before I cranked the engine. Can I tell you that my freon rushed out just as fast as I pumped it in? Drat. Well, at least now I have the proper NAPA part#s. Thanks Tangofox. I gotta super long drive Sunday and Monday so I rented a car. As soon as I get back, I'll get the proper seals and be cool again!
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____________ 1998 E300 +310,000K1996 E300 +460,000K Last edited by Bill Ladd; 05-12-2007 at 05:32 PM.
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#3
05-12-2007, 06:21 PM
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My ten year old
My daughter says that tests aren't difficult if she studies. Search this forum and have easy tests. Way to go.
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2009 E320 Bluetec 117,000 1995 E300D 306,000 Sold 1996 Ford Taurus LX 130,000 Sold 1985 300TD Still 225,000 Sold 2016 Ford Fusion 24,900
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#4
05-13-2007, 12:03 AM
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I just did the job on my 300SD and it was a lot easier than I expected it to be. That being said, I'm glad I read the different posts here and was prepared for most of what I found.
Gotta thank all the writers who give their knowledge to us....it's an awesome thing! It's nice to have air again!
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1998 W202 C230 - The money pit of late. 1984 W126 300SD (356,800 miles) Gone to the wrenchapart  1984 W123 300D Gone to the wrenchapart 1972 W108 280SE 3.5 (sold but not forgotten) 1986 Buick Grand National 3.8l Turbo (86k miles) 1966 Glassic Model 'A' Replica http://www.glassicannex.org  http://banners.wunderground.com/weat...Round_Rock.gif
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#5
05-13-2007, 12:50 AM
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You have it easy
 At some point I need to get a new compressor, drier, and expansion valve set back in my 300D because the compressor started making a moaning noise and leaked all the freon out (dunno the exact circumstances - my brother was driving it at the time). What's worse, I'm in Texas and the 110* heat waves are coming. I can feel it. EDIT: Oh, and on top of all that, my system is converted to R-134 and I can't convert it back. WOOHOO, looks like a hot summer...
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1984 300DT turbo 138k mi Still hauling me to school and back. Handy Site: http://www.dieselgiant.com/
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#6
05-13-2007, 01:04 AM
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I spent hours getting mine out.. Would have been easy if I could find the right tools at the right price.. ($0)
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Ich liebe meine Autos! 1991 Mercedes-Benz 560SEL | Megasquirt MS3-Pro | 722.6 transmission w/ AMG paddles | Feind Motorsports Sway Bar | Stinger VIP Radar | AntiLaser Priority | PLX Wideband O2 | 150A Alternator | Cat Delete 1981 Mercedes-Benz 300SD | Blown engine, rebuilding someday... 1981 Mercedes-Benz 300SD | Rear ended, retired in garage. 2009 Yamaha AR230HO | Das Boot Excessive speeding? It ain't excessive till I redline!
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