[DML] Re: AC system compressor doesn't cycle, high discharge pressure

["Marty Galbreath" <marty@xxxxxxxxxxxxxxxxx>]

Last night I did some more work and proved beyond a doubt that my 
compressor is indeed shot. Using procedures I gleaned from
Sanden's website, I saw that the pressure between the high and
low side would equalize in only 20 seconds after being turned off. 
The spec is at least 2 minutes. I then recovered enough Freon so 
that the compressor would cycle normally, 7 sec on, 9 sec off. I 
went on a test drive and everything worked well for about 5 minutes, 
then quit. Returning home and connecting my gauges, I saw that the 
pressure in both the high and low sides was 80 psi. I believe the 
compressor is toasted. I'll update after I install a new one.

Many thank to all who have replied!


Marty
#3765

 





--- In dmcnews@xxxxxxxxxxxxxxx, "Marty Galbreath" <marty@xxxx> wrote:
> I am having a terrible problem with my AC system on the Delorean. 
> Maybe someone can point me in the right direction.
> 
> The beginning?after I had my car restoration complete, I checked
> the Freon charge and saw it was empty. I evacuated the system and 
> charged with 36 ounces of R12. I had replaced the low pressure 
> switch since it was old and rusty, but nothing else was done to 
the 
> system.
> 
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