Search found 1197 matches

by JohnHere
Sun Sep 17, 2023 7:36 am
Forum: Automotive Air Conditioning Forum
Topic: AC is AC.........Caterpillar backhoe
Replies: 5
Views: 1838

Re: AC is AC.........Caterpillar backhoe

Have you measured the clutch gap and/or tried nudging the front of the clutch with a suitable wood tool, like a section of 2x2, to see whether it engages? The clutch gap might be too wide for the clutch coil to pull-in the driven disk, or the coil itself might be defective in some way as mentioned. ...
by JohnHere
Sat Sep 16, 2023 7:51 pm
Forum: Automotive Air Conditioning Forum
Topic: Toyota Auris A/C not working?
Replies: 10
Views: 2836

Re: Toyota Auris A/C not working?

The problem was because the system was low in pressure. And therefore low on refrigerant, as we thought. I hope it lasts. Did the shop check the system for leaks, and did they find any? If not, the leakage might be slight seasonal losses from the front compressor seal. Took it to a A/C workshop who...
by JohnHere
Fri Sep 15, 2023 11:55 am
Forum: Automotive Air Conditioning Forum
Topic: Separate Systems for each Refrigerant ?
Replies: 10
Views: 3048

Re: Separate Systems for each Refrigerant ?

I believe that a separate recovery/recharge machine is required by regulation for each refrigerant type. At least a couple of manufacturers are now producing EPA-approved RRR machines designed to handle both R-134a and R-1234yf simultaneously. The Konfort 780R Bi-Gas is one that recently appeared i...
by JohnHere
Fri Sep 15, 2023 9:12 am
Forum: Automotive Air Conditioning Forum
Topic: Separate Systems for each Refrigerant ?
Replies: 10
Views: 3048

Re: Separate Systems for each Refrigerant ?

When searching a forum before asking a possibly redundant question, seeing topic title -"Situation XYZ (SOLVED)" is one I'll be clicking on first The only way I can think of to do that is to start another duplicate topic with "solved" at the end of it. As far as I know (and I'm ...
by JohnHere
Thu Sep 14, 2023 9:35 pm
Forum: Automotive Air Conditioning Forum
Topic: 10S20F Performance Chart
Replies: 14
Views: 3430

Re: 10S20F Performance Chart

I know what I would do if it were my van and I were the only one that would ever work on. Block off the rear A/C and replace the front OT with a TXV? Or make custom lines and replace the compressor with a V7, leaving everything else as is? I replaced the GM White 0.072" tube with a Ford Red 0....
by JohnHere
Thu Sep 14, 2023 8:21 pm
Forum: Automotive Air Conditioning Forum
Topic: When charging by weight, fill to max?
Replies: 7
Views: 2490

Re: When charging by weight, fill to max?

bohica2xo wrote: Wed Sep 13, 2023 8:36 am So for fun I just charged my 6 foot high side hose on the gauge set with liquid. 36.5 grams according to my charging scale.
Very interesting. Appreciate your taking the time to do that measurement.
by JohnHere
Thu Sep 14, 2023 8:14 pm
Forum: Automotive Air Conditioning Forum
Topic: Separate Systems for each Refrigerant ?
Replies: 10
Views: 3048

Re: Separate Systems for each Refrigerant ?

robertdaleweir wrote: Wed Sep 13, 2023 7:57 am Not sure how to mark this question solved but I now know what I need to do.
No need to mark this thread "solved." You said it, and most if not all of the Forum's consultants will see your comment.
by JohnHere
Wed Sep 13, 2023 5:01 pm
Forum: Automotive Air Conditioning Forum
Topic: refilling a large r134a self-sealing can?
Replies: 3
Views: 1541

Re: refilling a large r134a self-sealing can?

Taking the discussion further, why not just purchase a 30-pound cylinder and be done with it? I know R-134a is more costly nowadays, but the upside is you'll have plenty of refrigerant to use in the future should you need it...and you probably will. Also invest in a good refrigerant scale so that yo...
by JohnHere
Wed Sep 13, 2023 7:11 am
Forum: Automotive Air Conditioning Forum
Topic: Separate Systems for each Refrigerant ?
Replies: 10
Views: 3048

Re: Separate Systems for each Refrigerant ?

I think what you're referring to is recovery instead of evacuation . In theory, you could recover the refrigerant by using a vacuum pump and storage tank. But remember that a modern RRR machine also recycles the refrigerant by identifying, filtering, and removing moisture from the recovered refriger...
by JohnHere
Tue Sep 12, 2023 9:45 am
Forum: Automotive Air Conditioning Forum
Topic: Separate Systems for each Refrigerant ?
Replies: 10
Views: 3048

Re: Separate Systems for each Refrigerant ?

If you're referring to professional RRR machines, they usually are designed for specific refrigerants and oil types—for example, R-12/Mineral Oil (virtually obsolete nowadays); R-134a/PAG Oil; and R-1234yf/Special PAG Oil. Lately, I've heard that RRR machines are now being produced that can handle b...