Search found 153 matches

by Al9
Thu Apr 23, 2020 2:10 am
Forum: Automotive Air Conditioning Forum
Topic: 2015 Subaru Forester AC Compressor replacement
Replies: 32
Views: 7249

Re: 2015 Subaru Forester AC Compressor replacement

No need to waste refrigerant. Carefully looking at all the lines and AC components in search for anything oily could do the trick. I once found a leaking o-ring behind the expansion valve by myself. Jamming a piece of weatherstrip foam between the TXV and its insert in the firewall and then retrievi...
by Al9
Tue Apr 21, 2020 5:07 am
Forum: Automotive Air Conditioning Forum
Topic: 2015 Subaru Forester AC Compressor replacement
Replies: 32
Views: 7249

Re: 2015 Subaru Forester AC Compressor replacement

By all means an OEM compressor is always the best choice for a relatively new vehicle. Be aware though that the part number is 73111FJ041 , not 7311FJ041. However, i think you have an underlying refrigerant leak issue somewhere and i suggest you to find it and address it before operating the new com...
by Al9
Sun Apr 19, 2020 3:26 pm
Forum: Automotive Air Conditioning Forum
Topic: 1990 Dodge D250 Cummins A/C Compressor
Replies: 7
Views: 2489

Re: 1990 Dodge D250 Cummins A/C Compressor

Unless you have a sump (and your compressor doesn't feature neither a sump, nor an isolated crankcase that can store a good amount of oil), almost nothing keeps the compressor lubricated during a DIY recharge accomplished with the compressor on, except perhaps that little oil (usually half an oz) wh...
by Al9
Sun Apr 19, 2020 2:32 am
Forum: Automotive Air Conditioning Forum
Topic: 2015 Subaru Forester AC Compressor replacement
Replies: 32
Views: 7249

Re: 2015 Subaru Forester AC Compressor replacement

Interesting you bring this up. I do notice the noise only when the AC is on. And I feel as though, last summer, my car just wouldn't get as cold inside. I contemplated recharging it. But then the non-engaging clutch problem came up. Followed by the noise. Now, if I try to run it, I get no cold air ...
by Al9
Fri Apr 17, 2020 3:57 am
Forum: Automotive Air Conditioning Forum
Topic: 2015 Subaru Forester AC Compressor replacement
Replies: 32
Views: 7249

Re: 2015 Subaru Forester AC Compressor replacement

Just speculating here. I've noticed the expansion valve's part number has been changed at some point on this car. Wondering if what affects these compressors is just normal wear or something else. Can't say anything about compressors from these brands, but curiously enough, 4seasons pretty always sh...
by Al9
Tue Apr 14, 2020 3:13 pm
Forum: Automotive Air Conditioning Forum
Topic: 1966 Oldsmobile A/C
Replies: 10
Views: 3173

Re: 1966 Oldsmobile A/C

A POA has to restrict the flow in order control evaporator pressure to a particular value (exactly like a TXV restricts the flow in order to have a certain superheat at the evaporator's outlet), so it's perfectly normal to have stuff getting cool downstream of it.
by Al9
Tue Apr 14, 2020 11:16 am
Forum: Automotive Air Conditioning Forum
Topic: 1966 Oldsmobile A/C
Replies: 10
Views: 3173

Re: 1966 Oldsmobile A/C

Something to consider: I know you said that you rebuilt the compressor, but it sounds to me like it's not up to the task of making normally expected pressures. Uneducated guess here, so take it with a grain of salt: since he stated that the compressor looks fine internally, i think a possible thing...
by Al9
Sun Apr 12, 2020 9:17 am
Forum: Automotive Air Conditioning Forum
Topic: 70's GM POA Valve Seepage
Replies: 4
Views: 1835

Re: 70's GM POA Valve Seepage

I'd recommend you to have a thorough reading at patent number US3817053A. Seems to cover a similar control system and it states a bleed port is included in order to leave the compressor cool and lubed up. I'm no expert on this system either - just curious. Other members might be much more knowledgea...
by Al9
Sat Apr 11, 2020 1:44 pm
Forum: Automotive Air Conditioning Forum
Topic: 70's GM POA Valve Seepage
Replies: 4
Views: 1835

Re: 70's GM POA Valve Seepage

To me it sounds like some kind of deliberate internal bleed intended to prevent compressor oil starvation and overheating at very low evaporator heat loads. Basically intended to keep the compressor from pumping itself into vacuum and killing itself, what could possibly happen if for example the eva...
by Al9
Fri Apr 10, 2020 3:01 pm
Forum: Automotive Air Conditioning Forum
Topic: 1987/1993/1996 Bronco AC upgrade...
Replies: 26
Views: 6661

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

About the lines, mufflers without any doubt. Remove them and you may get something similar to the "Sanden rumble". Still nothing compared to the array of noises (low pitched groans to high pitched moans) i have to put up with, my compressor can be described as an opera singer. Wonder why t...

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