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A/C repair

A/C repair

 
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Purplecomputer
Slowness 220D

897
07-07-2012, 11:35 AM #1
Hey guys,

My a/c has been dead for a few months now. It died in spring which wasnt a big deal but now Its summer and summers here on long island are anywhere from 90 to 100 plus degress with high humidity. I also drive alot for work and being stuck in my benz with this weather sucks.

Anyone ever replace their compressor and refill it themselves? Think I could do it on a weekend? Tips?
Purplecomputer
07-07-2012, 11:35 AM #1

Hey guys,

My a/c has been dead for a few months now. It died in spring which wasnt a big deal but now Its summer and summers here on long island are anywhere from 90 to 100 plus degress with high humidity. I also drive alot for work and being stuck in my benz with this weather sucks.

Anyone ever replace their compressor and refill it themselves? Think I could do it on a weekend? Tips?

aaa
GT2256V

913
07-07-2012, 11:58 AM #2
So you know the compressor's toast? You'll need a vacuum pump and gauges.
aaa
07-07-2012, 11:58 AM #2

So you know the compressor's toast? You'll need a vacuum pump and gauges.

Purplecomputer
Slowness 220D

897
07-07-2012, 01:51 PM #3
(07-07-2012, 11:58 AM)aaa So you know the compressor's toast? You'll need a vacuum pump and gauges.

yeah, I was refilling i when the car started to smoke. Shut off engine and the ac compressor was glowing a cherry red
Purplecomputer
07-07-2012, 01:51 PM #3

(07-07-2012, 11:58 AM)aaa So you know the compressor's toast? You'll need a vacuum pump and gauges.

yeah, I was refilling i when the car started to smoke. Shut off engine and the ac compressor was glowing a cherry red

sassparilla_kid
diesel > all other fuels

1,618
07-07-2012, 06:29 PM #4
Check this out, it seems to be pretty thorough

http://www.dieselgiant.com/repairyourac.htm

Unfortunately I think the problem with my a/c is something electrical Sad
This post was last modified: 07-07-2012, 06:36 PM by sassparilla_kid.

-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
sassparilla_kid
07-07-2012, 06:29 PM #4

Check this out, it seems to be pretty thorough

http://www.dieselgiant.com/repairyourac.htm


Unfortunately I think the problem with my a/c is something electrical Sad


-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!

Purplecomputer
Slowness 220D

897
07-07-2012, 09:22 PM #5
(07-07-2012, 06:29 PM)sassparilla_kid Check this out, it seems to be pretty thorough

http://www.dieselgiant.com/repairyourac.htm

Unfortunately I think the problem with my a/c is something electrical Sad

I was taking a look at that earlier today. Seems easy enough. the only thing I dont think ill have easy access to is that vacuum thing he was using.
Purplecomputer
07-07-2012, 09:22 PM #5

(07-07-2012, 06:29 PM)sassparilla_kid Check this out, it seems to be pretty thorough

http://www.dieselgiant.com/repairyourac.htm

Unfortunately I think the problem with my a/c is something electrical Sad

I was taking a look at that earlier today. Seems easy enough. the only thing I dont think ill have easy access to is that vacuum thing he was using.

ronnie
GT2559V

179
07-09-2012, 05:09 PM #6
With the engine off see if the compressor will still turn by hand, not the pullies but the outer part of the clutch. This will turn just the compressor. If it will not turn the compressor is toast. If it turns but does not have any "compression" than likely bad too. If you get a junkyard one turn it to check compression, should have some, and turn without any grinding, roughness etc.

Yes you will need a vacuum pump, just no way around it. You should flush the system just to be sure no bits of the compressor made its way around. My suggestion would be to flush it, get the replacement parts on with new o-rings, and a new receiver/ dryer, then have a shop vacuum it, leak check, and refill with r-12. 134 will not do very well, you will not be happy. I have enviro safe in mine, this is a propane mix, mostly r-290(refridgerant grade propane) This works very well, but some think it is not safe, so research and decide for your self.
ronnie
07-09-2012, 05:09 PM #6

With the engine off see if the compressor will still turn by hand, not the pullies but the outer part of the clutch. This will turn just the compressor. If it will not turn the compressor is toast. If it turns but does not have any "compression" than likely bad too. If you get a junkyard one turn it to check compression, should have some, and turn without any grinding, roughness etc.

Yes you will need a vacuum pump, just no way around it. You should flush the system just to be sure no bits of the compressor made its way around. My suggestion would be to flush it, get the replacement parts on with new o-rings, and a new receiver/ dryer, then have a shop vacuum it, leak check, and refill with r-12. 134 will not do very well, you will not be happy. I have enviro safe in mine, this is a propane mix, mostly r-290(refridgerant grade propane) This works very well, but some think it is not safe, so research and decide for your self.

 
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