Re: [DML] AC Compressor blows a back plate?
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Re: [DML] AC Compressor blows a back plate?





Paul, 

It's probably just old and/or corroded.  I would suspect that if your pressures 
were too high, it would blow one of the rubber hoses first.

For compressors, you either have NOS from DMC (DMC Midwest is my personal 
favorite) if you want the original factory look, or Hervey will sell you new 
compressors that fit as well.  It's really a just a matter of what you want to 
do.  Both are cheap and come with accumulator bottles and orifice tubes.

Depending on your VIN, you may or may not have a high pressure switch.  It's a 
nice feature, but my car has been blowing cold air for 30 years without one.  
Just make sure you use the proper oil, and change the accumulator and orifice 
tube (very carefully), vacuum down for at least an hour, and recharge.  Stick 
with R-12 when possible; it's not hard to get.  Clean all the dirt off the 
condenser, hose out the evaporator and drain tube, make sure your cooling fans 
both work, and enjoy the cool drive.

Jake Kamphoefner
1063

 



________________________________
From: Paul <paul.sweet@xxxxxxxxxxxx>
To: dmcnews@xxxxxxxxxxxxxxx
Sent: Sat, May 28, 2011 8:45:44 PM
Subject: [DML] AC Compressor blows a back plate?

  
Driving the car yesterday with my AC on, I hear a big "Whoosh" from the engine 
compartment and loss of my AC. After pulling in at home and taking a look, the 
rear part of the compressor (original), with the threads that hold the 
compressor hose bracket broke away from the main body of the compressor! The 
threaded piece of casting just broke apart, with screw and both hoses still 
attached. Is there too much pressure somehow or just old? It looks like I need 
to buy a new compressor, and wondered what the best choice is? Thanks, Paul 





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