Curious Leak from AC Compressor?

[Bitsyncmaster]

I once had a compressor bolt fall out (not on a DeLorean). The result was a leak like your seeing. The threads were stripped but it had held many years with no problems. I guess the factory had messed it up or some vibration that made if fail. I did fix it using a helicoil.

[kings1527]

Unless you're looking to be real adventurous and have a bunch of time, I'd recommend just putting in a new compressor that's brand new from Sanden rather than NOS and it's also a direct drop in replacement. Same as the original. This is that compressor:

http://store.sanden.com/index.php/4708.html

I've had the same one in my car for about 5 years and it's been perfect. If you're using R12 like I am, simply drain out the PAG oil that is pre-filled at the factory and replace it with an equal amount of mineral oil. Fill the system with R12 and you're all set. If you're using r134a, even better. Just mount it, connect the hoses, and fill the system with refrigerant.

The 4708 model of the SD7H15 couldn't be a more perfect fit for the DeLorean, no matter which refrigerant you're using.

[SBL]

When all is correct, with stock compressor, using R134a, how many PSI should the low pressure read as you add the refrigerant? Will this vary based on the RPM or temp? I read somewhere that 35 PSI was acceptable.

[Bitsyncmaster]

When all is correct, with stock compressor, using R134a, how many PSI should the low pressure read as you add the refrigerant? Will this vary based on the RPM or temp? I read somewhere that 35 PSI was acceptable.

The low pressure is controlled by the low pressure switch. Basically you should see it swinging about 25 to 45 PSI as the low pressure switch cuts in and out. It is not affected byt the amount of charge of the system.

[SBL]

Thanks. That will be what I need, David.