Search found 379 matches

by Dougflas
Tue Mar 16, 2021 3:45 am
Forum: Automotive Air Conditioning Forum
Topic: POA valve cleaning and calibrating
Replies: 6
Views: 5013

Re: POA valve cleaning and calibrating

yes that is an adjustment screw. You would use a 7/32 socket and probably a pair of long nose piers. The socket will hold the adjustment while you tighten the screw. It is bear and you will see what I mean. If using R12, you should not have to touch it. I would use clean mineral oil for flushing. Th...
by Dougflas
Mon Mar 15, 2021 12:31 pm
Forum: Automotive Air Conditioning Forum
Topic: POA valve cleaning and calibrating
Replies: 6
Views: 5013

Re: POA valve cleaning and calibrating

There were instructions on testing in the tips section but they are long gone due to upgrades. POA lo side should be 28 to 32 PSI with r12 depending upon your sea level. Test off the vehicle by connecting high side hose to shop air about 65 to 75 PSI. Connect manifold middle hose to input of POA and...
by Dougflas
Sun Feb 14, 2021 5:17 pm
Forum: Automotive Air Conditioning Forum
Topic: New A/C compressor locked up after not operating for 6 months
Replies: 8
Views: 8606

Re: New A/C compressor locked up after not operating for 6 months

Original post states system worked fine and went bad after sitting 6 months. Also, rear fitting may be for a low charge switch thus 1/4 inch flare fitting.
by Dougflas
Sat Jan 23, 2021 5:27 am
Forum: Automotive Air Conditioning Forum
Topic: Help with refrigerant
Replies: 3
Views: 3872

Re: Help with refrigerant

At the minimum, a complete disassembly and flushing should be done. How do you know a buy did not get into the system? I would suggest you also replace the hoses and POA as well as the TXV. I would also pull the evaporator and replace the foam rubber mountings so you do not have air leaks around the...
by Dougflas
Mon Jan 11, 2021 7:28 am
Forum: Automotive Air Conditioning Forum
Topic: AC restoration questions, '93 Mazda RX7
Replies: 32
Views: 30503

Re: AC restoration questions, '93 Mazda RX7

Take the ass'y to a local welding shop and have them TIG weld it and be done with this.
by Dougflas
Fri Dec 18, 2020 6:47 pm
Forum: Automotive Air Conditioning Forum
Topic: Cannot get compressor to engage
Replies: 16
Views: 12339

Re: Cannot get compressor to engage

The way I read that is 4 lbs.24 oz so it's 4 1/4 lbs.
by Dougflas
Sat Dec 12, 2020 10:43 am
Forum: Automotive Air Conditioning Forum
Topic: AC machine vacuum hose identification
Replies: 3
Views: 3518

Re: AC machine vacuum hose identification

I have no idea but did you try McMaster Carr?
by Dougflas
Fri Dec 11, 2020 5:29 am
Forum: Automotive Air Conditioning Forum
Topic: Cannot get compressor to engage
Replies: 16
Views: 12339

Re: Cannot get compressor to engage

Make and model of vehicle would be a huge help
by Dougflas
Fri Nov 27, 2020 3:48 pm
Forum: Automotive Air Conditioning Forum
Topic: Condensor Pusher Fan w/mechanical fan
Replies: 2
Views: 3006

Re: Condensor Pusher Fan w/mechanical fan

Look up the circuit a Dodge Sprinter 2006 and see how they have it set up. They have exactly what you want.
by Dougflas
Tue Nov 24, 2020 4:26 am
Forum: Automotive Air Conditioning Forum
Topic: 1961 cadillac conversion
Replies: 60
Views: 56611

Re: 1961 cadillac conversion

This post is going nowhere. Let's grow up folks.