Search found 157 matches

by Al9
Fri Aug 14, 2020 12:34 pm
Forum: Automotive Air Conditioning Forum
Topic: Oil Balance Question
Replies: 1
Views: 32

Re: Oil Balance Question

As long as you're using an evaporative flush solvent, chasing it with a lot of dry compressed air (or even better OFN) and then doing a good vacuum you should be fine. Ideally speaking, a flush solvent has to be evaporative so that it's easily removed from the system. If you flush the condenser too ...
by Al9
Thu Aug 13, 2020 9:15 am
Forum: Automotive Air Conditioning Forum
Topic: Dodge A/C Help
Replies: 10
Views: 95

Re: Dodge A/C Help

The expansion device is an orifice tube. These tubes have two screens which can clog up. This is the only way one of them can can go bad. Expansion valves tend to interfere with pressure based evaporator temperature control systems (such as cycling switches) unless they're carefully tailored to the ...
by Al9
Thu Aug 13, 2020 6:51 am
Forum: Automotive Air Conditioning Forum
Topic: Dodge A/C Help
Replies: 10
Views: 95

Re: Dodge A/C Help

It has only been checked by gauges. How do the check refrigerant weight? Would they evacuate the system then put in specified weight? Then they didn't check the refrigerant charge weight AT ALL. Refrigerant charge weight is checked by recovering whatever's left in a system and weighing it. My advic...
by Al9
Thu Aug 13, 2020 3:26 am
Forum: Automotive Air Conditioning Forum
Topic: Dodge A/C Help
Replies: 10
Views: 95

Re: Dodge A/C Help

Hello all, I had the R134 checked twice and it is full and pressures are fine. Before dismissing it with "It's normal since it's a cycling clutch orifice tube system", which sounds like what a shop would say when giving the runaround, are you sure that the actual refrigerant charge weight...
by Al9
Tue Aug 11, 2020 3:33 am
Forum: Automotive Air Conditioning Forum
Topic: Ac cold at idle, gets warm
Replies: 5
Views: 107

Re: Ac cold at idle, gets warm

The first thing to do when you have most AC problems is to verify the correct charge.. and thus eliminate that as a problem. Gospel truth. Unfortunately enough, too many owners feel too cheap (or lack the money needed for proper car maintenance in general) to either get the equipment needed (and th...
by Al9
Mon Aug 10, 2020 2:06 pm
Forum: Automotive Air Conditioning Forum
Topic: Ac cold at idle, gets warm
Replies: 5
Views: 107

Re: Ac cold at idle, gets warm

Maybe the evap is freezing up once compressor capacity climbs up enough? Does the air flow suddenly and eventually reduce?
by Al9
Sun Aug 09, 2020 9:37 am
Forum: Automotive Air Conditioning Forum
Topic: Very weak cooling suddenly?
Replies: 6
Views: 309

Re: Very weak cooling suddenly?

Good, so you replaced a dying comp in time before it had a chance to seize up and do more damage. Enjoy your cold air.
by Al9
Sat Aug 08, 2020 7:56 am
Forum: Automotive Air Conditioning Forum
Topic: 1961 cadillac conversion
Replies: 48
Views: 5523

Re: 1961 cadillac conversion

Malfunctioning cycling switch?
by Al9
Fri Aug 07, 2020 4:25 am
Forum: Automotive Air Conditioning Forum
Topic: Weak Compressors, or bad orifice tube?
Replies: 22
Views: 1735

Re: Weak Compressors, or bad orifice tube?

Likely not enough flow restriction in limited compressor capacity conditions (the higher than normal suction at idle).

VOVs try to mimic certain aspects of how cross-charged TXVs operate, albeit they can't finetune superheat.
by Al9
Thu Aug 06, 2020 8:11 am
Forum: Automotive Air Conditioning Forum
Topic: *FIXED**dying comp replaced* Old Delphi CVC-125 variable comp (TXV system) exhibiting a strange behaviour
Replies: 10
Views: 4972

Re: Old Delphi CVC-125 variable comp (TXV system) exhibiting a strange behaviour

Ok guys. Story goes on. Car is in the shop getting the compressor replaced. The old one has its original pulley bearing still able to rotate smoothly and quietly even though we are at about 73000 miles and the clutch assembly had been fiddled with 3 times to replace failed clutch coils. Old compress...

Go to advanced search