Search found 153 matches

by Al9
Tue Aug 04, 2020 12:16 am
Forum: Automotive Air Conditioning Forum
Topic: Forgot more than I know
Replies: 27
Views: 1779

Re: Forgot more than I know

when I did the compressor / accumulator / condenser changeout last year I dropped exactly 7oz of PAG 46 into the compressor That is supposed to be a system's oil charge. Since you mention you didn't flush the evaporator and that you had a slow leak, you could likely have had lots of oil inside the ...
by Al9
Mon Aug 03, 2020 12:48 pm
Forum: Automotive Air Conditioning Forum
Topic: Forgot more than I know
Replies: 27
Views: 1779

Re: Forgot more than I know

Or way too much oil inside...
by Al9
Mon Aug 03, 2020 1:43 am
Forum: Automotive Air Conditioning Forum
Topic: Weak Compressors, or bad orifice tube?
Replies: 22
Views: 1700

Re: Weak Compressors, or bad orifice tube?

Or turn the AC on while the engine coolant is still cold. Get a better vent temperature that way and here's your problem.
by Al9
Fri Jul 31, 2020 1:19 am
Forum: Automotive Air Conditioning Forum
Topic: Forgot more than I know
Replies: 27
Views: 1779

Re: Forgot more than I know

I'd say anything that is able to evaporate fast (hexane/heptane, isopropyl alcohol or a mix of both) is an exceptional flush solvent in my honest opinion. I flushed an evaporator (plus a set of hoses) with quick drying contact cleaner (based upon both chemicals according to the SDS) myself and it di...
by Al9
Thu Jul 30, 2020 12:52 am
Forum: Automotive Air Conditioning Forum
Topic: Rattling from new receiver dryer
Replies: 6
Views: 505

Re: Rattling from new receiver dryer

Story goes on. New receiver dryer just arrived (took its sweet time due to the virus thing). Same brand and part number, only different supplier. This time it's been packaged really carefully, both the envelope and the actual box were filled with vibration-dampening material. This one isn't rattling...
by Al9
Tue Jul 28, 2020 12:41 pm
Forum: Automotive Air Conditioning Forum
Topic: 1993 Honda Accord weak AC after total rebuild
Replies: 12
Views: 628

Re: 1993 Honda Accord weak AC after total rebuild

AI9, what do you mean when you say 134A-tailored cross charge? The system was originally built for R12, and has been charged with pure R12. It was fully evacuated and flushed before new refrigerant was injected, and oiled with 4.5 ounces of Mineral Oil. The system may use whatever refrigerant, but ...
by Al9
Tue Jul 28, 2020 8:12 am
Forum: Automotive Air Conditioning Forum
Topic: 1993 Honda Accord weak AC after total rebuild
Replies: 12
Views: 628

Re: 1993 Honda Accord weak AC after total rebuild

Well, i highly doubt that reheat issues go away by themselves once RPM goes up. Don't know the specs but if it has a 134A-tailored cross-charge this could possibly be the problem. Floods evaporator below a precise evaporator pressure value and the two refrigerants have different P/T charts. Which is...
by Al9
Tue Jul 28, 2020 2:15 am
Forum: Automotive Air Conditioning Forum
Topic: Want my 1956 Imperial to be a freezer in the summer
Replies: 6
Views: 360

Re: Want my 1956 Imperial to be a freezer in the summer

bohica2xo wrote:all of the OEM systems drag in outside air - even when set on recirculate.

Seems to be true - the recirculation flap on my car features a small bypass hatch that seems to let something through from the interior even when set to 100% fresh air. Wonder if it also works the opposite way.
by Al9
Mon Jul 27, 2020 2:34 am
Forum: Automotive Air Conditioning Forum
Topic: Want my 1956 Imperial to be a freezer in the summer
Replies: 6
Views: 360

Re: Want my 1956 Imperial to be a freezer in the summer

From what I have read the standard car AC is anywhere from 3 to 7 ton capacity Well it's actually lower than that since most auto expansion valves are rated around 1.5 to 2 ton. 3 to 7 is more like a shuttle bus/city bus. The dual AC compressor setup is optimal for a dual evaporator setup since it ...
by Al9
Mon Jul 27, 2020 2:22 am
Forum: Automotive Air Conditioning Forum
Topic: Very weak cooling suddenly?
Replies: 6
Views: 287

Re: Very weak cooling suddenly?

Many things can go wrong with such an old car. This is really weird, especially the warm out of the blue part, but definitely sounds like the compressor has lived its long life and is now lying on the death bed (knocked too many reed valves off perhaps? no sump unlike with the A6, with double acting...

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