Pelican Parts Forums - Please help with A/C problem

Pelican Parts Forums (http://forums.pelicanparts.com/)

- Porsche 924/944/968 Technical Forum (http://forums.pelicanparts.com/porsche-924-944-968-technical-forum/)

- - Please help with A/C problem (http://forums.pelicanparts.com/porsche-924-944-968-technical-forum/14444-please-help-c-problem.html)

Please help with A/C problem

1987 944na

Can you tell me the proper high-side and low-side pressure for the A/C system and the associated RPM.

Some guy at Vertex told me that the high-side pressure with a warm engine at 3000RPM is 280psi. That sounds higher than other cars. Is this figure correct.

Also, just to make sure, the high side line is the smaller diameter one that has the valve on the top side of the engine near the brake master cylinder. And the low side is the valve right next to the compressor and is on the larger diameter hose.

Thanks!

http://aircondition.com/dsmobileac/

check out this site, lots of cool info. what type of expansion valve does the late944 have? block, internal, etc...?

Do a topic search, someone posted the exact pressures about a month ago.