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Replacing Air Conditioning Compressor

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Old Jul 3, 2004 | 09:26 AM
  #16  
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slc10844
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From: Baltimore
If the compressor failed, the system is full on metal and needs to be flushed. If you just add oil and recharge, your just wasting your money. You will have another compressor failure in short order. You'll also need to replace the accumulator and orfice.
 
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Old Jul 3, 2004 | 10:33 AM
  #17  
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diego-ted
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Originally Posted by slc10844
If the compressor failed, the system is full on metal and needs to be flushed. If you just add oil and recharge, your just wasting your money. You will have another compressor failure in short order. You'll also need to replace the accumulator and orfice.
Thx I will take it is let them know What happened,. what I repleced and have them do the rest. I just needed to get it running so I could get it to the shop.
 
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Old Aug 31, 2004 | 02:50 PM
  #18  
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rvpfly
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From: Edmond
You guys mention flushing the system out.... how do you flush it out (ie compressor on/off, dryer on/off/ o-tube in/out, etc) and what type of flush would you recommend for an R12 to R-134 conversion. Thanks in advance
 
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Old Aug 31, 2004 | 03:26 PM
  #19  
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slc10844
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When the system needs flushing, it is best left to the professional mechanic. Flushing is only necessary if there is contamination. Most of the time, contamination is the result of compressor failure. There are a lot of variables when working on a/c systems, and it requires knowledge, skill and proper equipment to make repairs in a responsible manner. Unless you have a stash of R-12, conversion to R-134 is the only cost effective was to go.
 
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Old Aug 31, 2004 | 07:41 PM
  #20  
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bodabdan
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From: River Valley AR
OK, this may stir things up a bit so here goes-
There are two ways to do air conditioning work, right and wrong. If you are not experienced and certified, you are probably doing it wrong. I did not say that the system can't blow cold air, it can and it will. The difference will be two months of happiness or ten years of efficient service.
Air conditioning uses physics and chemistry to cool your vehicle. Some of the factors involved are Latent heat, change of phase, flourocarbons, chlorinated flourocarbons, PAG oils, ester oils, superheat charging tables, vapor-pressure-temperature relationships, airflow, condensible and non-condensible gases, and acid formation.
Don't take it personally but if you are not confident about the tensioner pulley, you are probably in over your head. I understand the predicament that you were in with the truck not starting. Pikachu is right about the compressor clutch. When a compressor locks up, it can stall the motor, but only if the clutch is energized or failed in the engaged position.
Where the problem is lies in improper disposal and recovery of refrigerants. Most people know when you spill oil everywhere because you can see it. If you dump freon nobody will know unless they watch you do it. You may not get caught but the damage is done regardless. This is the main reason that certification was made mandatory. I hope that you did properly recover the freon.
Air conditioning work is not rocket science, but it is science. If you have any doubts consult a professional.
I have had a broken compressor like yours before and the best temporary fix I could come up with was a short belt that bypassed the compressor completely.
 
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