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#1
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a/c question
Does anyone kow if I put in a new a/c compressor do I have to charge the system right away or can I leave the wires disconected so that it does not ingage untill I get it charged. Or should I put oil in it and hook up the lines. then charge it not sure if the old system had a leek there was not much R-12 left in it at all. My old a/c compressor was not seezed up but had bad bearings on the pulley.
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#2
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No, you don't have to charge it right away. Make sure it has oil in it. Why not install it and leave the belt off for now? If you are replacing the compressor, you have to replace the receiver/drier. It will also void any compressor warranty you have if you don't replace the receiver/drier.
Why are you replacing the compressor? If the old one went bad, you also need to flush your system to remove all of the bearing material and other junk that is now contaminating everything else. Scott
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Scott 1982 Mercedes 240D, 4 speed, 275,000 1988 Porsche 944 Turbo S (70,000) 1987 Porsche 911 Coupe 109,000 (sold) 1998 Mercedes E300 TurboDiesel 147,000 (sold) 1985 Mercedes 300D 227,000 (totaled by inattentive driver with no insurance!) 1997 Mercedes E300 Diesel 236,000 (sold) 1995 Ducati 900SS (sold) 1987 VW Jetta GLI 157,000 (sold) 1986 Camaro 125,000 (sold - P.O.S.) 1977 Corvette L82 125,000 (sold) 1965 Pontiac GTO 15,000 restored (sold) |
#3
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You should probably replace the dryer even if the compressor warranty doesn't demand it. I would charge the system right away after a compressor R&R just to keep air and moisture out. But if you put a new dryer on, it is imperative to vacuum the system and recharge it right away. Don't even remove the plugs on the new dryer until it's ready to go in and go under a vacuum.
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#4
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The compressor won't engage if the system doesn't contain any refrigerant, so you should be okay to install it, but not charge it right away.
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Current cars: 2000 ML55 AMG, 174k miles 2003 C240 T-Modell, 202k miles 1995 S320, 207k Miles |
#5
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Contaminate
If the bearings can contaminate the AC Compressor and the whole system do you think a vacuum is going to suck out the contamination when the vacuum doesn't usually suck out all the oil???????? Jim
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James A. Harris Last edited by jim16671836; 06-09-2008 at 09:43 PM. Reason: More Information |
#6
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Quote:
You should remember my '96. I just got done reassembling the entire system. I flushed everything except the condenser, dryer and expansion valve, which I replaced. Nothing on the system had failed, but I had a restriction in the dryer so it had to come apart. |
#7
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Quote:
Moisture can react with certain oils and create acidic compounds, which will eat away at the metals in the system - including your new compressor. If you're not going to flush, evacuate, and charge, you would be better off leaving your new compressor in the box until you're ready for it.....
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Bob '82 300D Petrol B-G Metallic |
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