Search found 24 matches

by TheBandit
Thu Aug 23, 2018 8:27 am
Forum: Automotive Air Conditioning Forum
Topic: Resurrecting 1970 GM AC with POA
Replies: 30
Views: 45311

Re: Resurrecting 1970 GM AC with POA

High Pressure Line Many years ago I picked up compressor fittings from Docs Blocks just before they went out of business. I got both straight and angle/tube adapters and ended up using a combination: straight on the suction side and right angle on the high pressure outlet. Unfortunately the right a...
by TheBandit
Wed Aug 22, 2018 9:25 am
Forum: Automotive Air Conditioning Forum
Topic: Resurrecting 1970 GM AC with POA
Replies: 30
Views: 45311

Re: Resurrecting 1970 GM AC with POA

Thanks for the info 71403. Out of curiosity, do you know what the ECM does as an anti-slug routine?
by TheBandit
Tue Aug 21, 2018 12:59 pm
Forum: Automotive Air Conditioning Forum
Topic: Resurrecting 1970 GM AC with POA
Replies: 30
Views: 45311

Re: Resurrecting 1970 GM AC with POA

Liquid Line Last night I loosely mounted the drier and started looking at liquid line routing. I was happy to see I should be able to route the line tucked inside the fender and out of sight by using 45 degree fittings on either side of the drier and a 90 degree fitting at the TXV. http://cjnn.xtre...
by TheBandit
Tue Aug 21, 2018 12:49 pm
Forum: Automotive Air Conditioning Forum
Topic: Resurrecting 1970 GM AC with POA
Replies: 30
Views: 45311

Re: Resurrecting 1970 GM AC with POA

DEC PAG explanation https://www.autoacforum.com/messageview.cfm?catid=20&threadid=17571 For heater valves on GM stuff I use a vacuum unit, like the AC Delco P/N 155536 It was used on G vans, and P vans from 1990 to 1996. Thank you for both suggestions! I will look into these.
by TheBandit
Tue Aug 21, 2018 12:47 pm
Forum: Automotive Air Conditioning Forum
Topic: Resurrecting 1970 GM AC with POA
Replies: 30
Views: 45311

Re: Resurrecting 1970 GM AC with POA

Here is a look at the exit of the POA valve showing the adjustment screw and lock nut. http://cjnn.xtremefabricator.com/images/LY6swap/ly6swap1417.jpg Can someone confirm if the threads are standard direction? i.e. I would turn the lock nut counter clockwise to unlock. Also which direction on the ad...
by TheBandit
Tue Aug 21, 2018 12:42 pm
Forum: Automotive Air Conditioning Forum
Topic: Resurrecting 1970 GM AC with POA
Replies: 30
Views: 45311

Re: Resurrecting 1970 GM AC with POA

POA Valve Testing The POA has followed me in storage for the last twenty years, always kept in a ziplock bag in a storage bin of parts for the Nova. It's been moved dozens of times and it's sort of a miracle I haven't lost it. For a long time I was dragging around all the AC-related parts including...
by TheBandit
Tue Aug 21, 2018 12:29 pm
Forum: Automotive Air Conditioning Forum
Topic: Resurrecting 1970 GM AC with POA
Replies: 30
Views: 45311

Re: Resurrecting 1970 GM AC with POA

History Detour I have had my car for 20 years now. Back in 1998 when I first got it, the original engine and AC system were fully connected, although I don't know if the system was functional. Here is what things looked like way back then: http://cjnn.xtremefabricator.com/images/psnpics/engine1.jpg...
by TheBandit
Tue Aug 21, 2018 12:13 pm
Forum: Automotive Air Conditioning Forum
Topic: Resurrecting 1970 GM AC with POA
Replies: 30
Views: 45311

Re: Resurrecting 1970 GM AC with POA

Thank you bohica2xo! Can't tell you how much I appreciate the input. Yes this was a long time in the planning. I bought the docs adapters when I first got the compressor because I was aware they were going out of business and they were liquidating supply. However at this point my timeline is within ...
by TheBandit
Tue Aug 21, 2018 9:49 am
Forum: Automotive Air Conditioning Forum
Topic: Resurrecting 1970 GM AC with POA
Replies: 30
Views: 45311

Re: Resurrecting 1970 GM AC with POA

Suction Hose I have been sorting out fittings and hose ends to plumb the system. One place where a standard fitting poses a problem is at the exit of the POA valve. This joint is a #12 o-ring, however the standard size now used for the suction line to the compressor is #10. I needed a 180 degree #1...
by TheBandit
Tue Aug 21, 2018 9:36 am
Forum: Automotive Air Conditioning Forum
Topic: Resurrecting 1970 GM AC with POA
Replies: 30
Views: 45311

Re: Resurrecting 1970 GM AC with POA

Be gentle with the schrader valve on the oil return line at the POA body. I was thinking to just leave that valve in place. I worry about damaging it while trying to remove and reinstall. Is there any reason to remove it for flush or test? If not, I will leave it undisturbed. The 26 psi adjustment ...

Go to advanced search