Search found 31 matches

by robmaxfli
Mon Jul 17, 2017 8:55 pm
Forum: Automotive Air Conditioning Forum
Topic: Compressor will not cycle with LPCO jumpered
Replies: 6
Views: 9932

Re: Compressor will not cycle with LPCO jumpered

Why yes - its a '92 Park Avenue...What was the solution to the bulkhead connector issue? I did a continuity test on the high pressure switch on the back of the compressor and it passed - so it seems good. I did the same test on the low pressure switch (both installed with pressure) and it gave conti...
by robmaxfli
Mon Jul 17, 2017 6:05 pm
Forum: Automotive Air Conditioning Forum
Topic: Compressor will not cycle with LPCO jumpered
Replies: 6
Views: 9932

Compressor will not cycle with LPCO jumpered

I'm starting with all new AC parts - everything - on my 1992 R-12 system. I've added 18oz. of R-12 so far (38oz capacity) but I cannot add more because the comp. clutch will not come on again. At first, I was able to add some r-12 and the clutch cycled very quickly a few times. I could see the Low s...
by robmaxfli
Sat Jul 15, 2017 8:53 am
Forum: Automotive Air Conditioning Forum
Topic: Ruined New Compressor?
Replies: 0
Views: 8444

Ruined New Compressor?

1992 Buick - I could not rotate the new compressor by hand - too tight - so I installed it and jumpered the low pressure cutoff switch for about 5 seconds - it came on just fine. I took out the pin - it went off- and then did it again for another second - came on. I tried to do it a 3rd time but it ...
by robmaxfli
Fri Jul 14, 2017 12:08 pm
Forum: Automotive Air Conditioning Forum
Topic: Using R134 to test in an R-12 system
Replies: 3
Views: 6045

Re: Using R134 to test in an R-12 system

ok - If I add R134a will that distribute the UV dye that I added (without turning on the compressor)?
thanks
by robmaxfli
Fri Jul 14, 2017 10:12 am
Forum: Automotive Air Conditioning Forum
Topic: Using R134 to test in an R-12 system
Replies: 3
Views: 6045

Using R134 to test in an R-12 system

I've got all new AC components in my 1992 Buick - nothing reused. I hooked everything back together and pulled a vacuum but it will not hold overnight. I have already added R12 Mineral oil and UV Dye into the system. I have R12 that I want to recharge with eventually. I then used plain shop air to p...
by robmaxfli
Mon Jul 10, 2017 4:18 pm
Forum: Automotive Air Conditioning Forum
Topic: Drawing Down a Vacuum
Replies: 3
Views: 6047

Re: Drawing Down a Vacuum

I forgot to mention - I changed the vacuum pump (as well as the gauges) for the 2nd reading of Hg. - Autozone rentals ;) So I checked the current gauge set as suggested above and found that 25 Hg is the most it will pull down to on the gauge (no hoses used). So maybe it is the gauge for the amount o...
by robmaxfli
Sun Jul 09, 2017 7:09 pm
Forum: Automotive Air Conditioning Forum
Topic: Drawing Down a Vacuum
Replies: 3
Views: 6047

Drawing Down a Vacuum

Hi all, Working with a 1992 Buick park Avenue ( an R-12 car) . I took the AC completely apart and bought new everything: compressor , evaporator, Main Hoses, Accumulator , Condenser, O-Rings. I have R-12. so I finally got everything hooked back together with 8oz. on Oil in the system as well as some...
by robmaxfli
Mon Jun 05, 2017 5:19 am
Forum: Automotive Air Conditioning Forum
Topic: 1992 Buick Park Avenue Evaporator Removal
Replies: 0
Views: 7291

1992 Buick Park Avenue Evaporator Removal

Hello, I am at the final stage of removing the Evaporator but there is one more bolt that is preventing the whole case from being detached from the firewall. It is right in the middle of the case at the very bottom. It has a white plastic retainer on the threads. I have gone into the interior of the...
by robmaxfli
Thu Jun 01, 2017 10:33 am
Forum: Automotive Air Conditioning Forum
Topic: Cross-threaded Schrader Valve
Replies: 2
Views: 5056

Cross-threaded Schrader Valve

I went to remove my old Schrader valve to replace it using the cheap little tool from Autozone. It starts twisting and backing out - but then it won't back out any longer . I tried grabbing with needle-nose pliers - while twisting and pulling but no go. How can I get this valve out without damaging ...
by robmaxfli
Wed May 31, 2017 8:14 pm
Forum: Automotive Air Conditioning Forum
Topic: Testing for leaks
Replies: 4
Views: 7098

Re: Testing for leaks

Thanks for the reply. Air flow is great - just not cold. I did what you said about removing the blower thingy so I could look into the Evap case. It didn't feel oily but I saw some green dye specs on the fins from the viewpoint that I had. I am going to get another Evaporator and try it out. That &q...