Well, ATTABOY, anyway. ;<)
Wilton
----- Original Message -----
From: "Rick Hawkins Java via Mercedes" <mercedes@okiebenz.com>
To: "mercedes@okiebenz.com List" <Mercedes@okiebenz.com>
Cc: "Rick Hawkins Java" <macj...@aol.com>
Sent: Tuesday, September 08, 2015 2:21 AM
Subject: [MBZ] latest 1982 300td ac saga
Folks,
i did a stupid thing but it;s fixed now.
After the r4 ac compressor blew its housing a month ago, i had to fix it. I
bought a compressor on amazon and a receiver drier on ebay or somewhere and
found some more straight mineral oil and assorted seals and orings and etc.
I went to my ac expert. He hung the compressor and i hung the receiver. He's
younger than my 61 years and refuses to wear glasses. We were working at his
place about 40 miles north of here. We evacuated and charged the system with
some of my r12 stash.
About 10 miles south of him, headed to athens, i stopped for a few minutes
and then when i started again, NO AC. I stopped and looked at it and saw
that the ac belt had broken but the compressor was still free.
The next day we tried to install the belt and noticed that the pulleys
didn't line up. A little research by looking at some of my failed
compressors determined that the R4 installed on the Benz had an incorrect
pulley for a benz. So, the AC guy who refuses to wear reading glasses
installed the compressor with a pulley that was a belt width off
alignment …. a guaranteed failure.
SO, since i didn't want to pull the compressor and recharge the system, i
started studying how to remove the pulley. The compressor i bought was just
some random r4 for a GM application. I thought they all had the same pulley
setup. Anyway, i watched some videos by BOB on youtube about removing and
installing the clutch and pulley.
Fortunately, auto zone has LOTS of ac tools to borrow. I got a bunch of
pullers and such and easily took one apart on the bench.
Can it be done in the car …. Yes, with some effort. I had to remove the
radiator and then there is just enough room. There are a bunch of details. …
snap rings and beys in the shaft. So, probably 12 man hours later or more
(not including time researching the procedures) i am back on the road with
ice cold AC.
So, i was stupid for buying the wrong part.
My AC guy was even stupider for installing it
And i was even stupider that that for not comparing old and new part and not
inspecting the job better.
He DOES do a good job …. his work has held pressure (no freon added) for the
3 or 4 year life that is the max i've ever gotten out of an R4
Take heed and learn from my mistakes.
No animals were harmed and no freon was vented.
Now i'm off to Tupelo MS to deliver a 1500 lb printing press as soon as i
get the press ready and loaded. I hate hauling the ones that are that heavy.
thanks,
xx rick
Rick Hawkins
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