AC Fittings all messed up?

Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's, Olds 98 91-96, Buick Lesabres and Park Avenue 91-96. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
Post Reply
93Bonneville
SE Member
SE Member
Posts: 24
Joined: Sun Feb 27, 2011 5:32 pm
Year and Trim: 1993 Bonneville SSE

AC Fittings all messed up?

Post by 93Bonneville »

My AC system works extremely well when charged. But it doesn't stay charged. I have tracked the leak down to the low side shrader valve. I know that the shrader valves are not the primary seal, but I also know that my shrader valves are leaking more than the normal, and probably because the car was ran without the caps for awhile and dirt got in.

I decided that I will replace all the orings, orifice tube, and the shrader valves. Then vacuum down and recharge. The system has plenty of oil, and probably more than enough because the R134a we threw in it last summer had some oil charge in it. The receiver drier is also fine. My low side has a standard R134a connector, so replacing the shrader valve is no problem. But my high side has some freaky things going on with it.

Low side, with the normal cap/adapter:

Image

High side, with what appears to be the original R12 fitting??

Image

I am assuming that the high side has the R12 fitting. And the previous owners never put the r134a adapter on it? If so, does that old r12 fitting unscrew, and I just screw this new one in?
http://www.ebay.com/itm/R134a-High-Side ... e1&vxp=mtr

Also, should I replace the orings/seals for where the hoses connect to the compressor?

Thanks for any info in advance!
Top
Post Reply

Return to “1992-1999”