Search found 201 matches

by Al9
Sun May 17, 2020 3:07 am
Forum: Automotive Air Conditioning Forum
Topic: Old Chrysler A/C
Replies: 18
Views: 4410

Re: Old Chrysler A/C

so I may suck it all out and replace it with known Pag oil with dye There's no such thing as "suck it all out". It's "flush it all out". You guess it, things have to come apart to be flushed. You guys are getting me into a lot more work than I had planned on but in reality what ...
by Al9
Sat May 16, 2020 6:36 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: 5398

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

Update: As the weather is becoming warmer and warmer (around 77 F ambient and increasing solar heat gain now) the system still seems to cool fine both stationary and moving, but what i've been able to notice is that it takes a relatively long time to achieve the liquid line pressure required to turn...
by Al9
Wed May 13, 2020 3:11 am
Forum: Automotive Air Conditioning Forum
Topic: High 'Low-Side' Pressure
Replies: 18
Views: 3585

Re: High 'Low-Side' Pressure

Too much dye adds up to the oil charge and results in oil overcharge issues. Dye is usually Ester oil mixed with trace amounts of the actual UV dye. Some dyes may also include lubricity additives (which most PAG oils already have anyway). Most shops have the habit of giving a dye "shot" to...
by Al9
Sun May 10, 2020 10:05 am
Forum: Automotive Air Conditioning Forum
Topic: High 'Low-Side' Pressure
Replies: 18
Views: 3585

Re: High 'Low-Side' Pressure

Check your cabin air filter. If it's not the filter you likely have a leaking air duct somewhere under the dash.
by Al9
Sun May 10, 2020 8:34 am
Forum: Automotive Air Conditioning Forum
Topic: No cool at idle and smoke
Replies: 16
Views: 3678

Re: No cool at idle and smoke

Even better, do both things at once. I.e. rotate the clutch hub with the refrigerant ports (no crankcase->no oil drain hole on this comp) facing downwards so that the oil drains into a container.
by Al9
Fri May 08, 2020 10:57 am
Forum: Automotive Air Conditioning Forum
Topic: 1987/1993/1996 Bronco AC upgrade...
Replies: 26
Views: 7530

Re: 1987/1993/1996 Bronco AC upgrade...

Interesting. In variable comps like mine it's the other way around. Patent US6379121B1 (not involved with it in any way, just came across it) which likely refers to a Denso variable comp basically states that the suction reed valves don't open all the way and tend to vibrate when the swashplate is a...
by Al9
Thu May 07, 2020 7:17 am
Forum: Automotive Air Conditioning Forum
Topic: Evaporator fin density and differing TXV adjustments
Replies: 4
Views: 2109

Re: Evaporator fin density and differing TXV adjustments

Thanks for this informative answer, i understand this basically means that different fin density won't really affect correct TXV operation as long as the TR rating is proper. About the comments, the real thing is, i've noticed different makers are using the same TXV both with variable displacement c...
by Al9
Thu May 07, 2020 5:10 am
Forum: Automotive Air Conditioning Forum
Topic: Excavator a/c
Replies: 21
Views: 6881

Re: Excavator a/c

now it will freeze u out in the morning 39-40f out the vent 10 psi low side and 170 ish high side in the morning 70 degrees outside... As the day goes on the vent temp warms to 55-60 and it doesn't keep the cab cool... This sounds like really bizarre behaviour for a bad evaporator temperature probe.
by Al9
Thu May 07, 2020 1:21 am
Forum: Automotive Air Conditioning Forum
Topic: equal pressure both sides of the gauges
Replies: 7
Views: 2396

Re: equal pressure both sides of the gauges

Not unlikely at all. Modern comps do away with piston rings and have a polymer coating either on the piston or on the cylinder as a means of sealing. If this one wears down too much you get a compressor that is only good at making noise and nothing else. I think prolonged running in this condition c...
by Al9
Tue May 05, 2020 7:08 am
Forum: Automotive Air Conditioning Forum
Topic: Vintage Air in Modified Corvette with LS3
Replies: 7
Views: 2342

Re: Vintage Air in Modified Corvette with LS3

I've once had a faulty LP schrader core and it leaked through the tightly fitted seal-equipped port cap. About half the R-134A system charge (which is little over 1 lb) leaked out in the course of about 15 days. Shop idiot i trusted my car to, ironically enough to fix two leaks i noticed, either did...

Go to advanced search