Search found 846 matches

by Cusser
Tue Oct 17, 2023 6:26 am
Forum: Automotive Air Conditioning Forum
Topic: Vintage AC System Questions
Replies: 6
Views: 5987

Re: Vintage AC System Questions

I'm not an AC professional.

But I use 525 mineral oil with the R-12 in my 1988 Mazda truck. I use a compressor I purchased brand-new in 2014 from Tim, board sponsor. ackits.com
by Cusser
Mon Oct 16, 2023 7:10 am
Forum: Automotive Air Conditioning Forum
Topic: How much vacuum
Replies: 15
Views: 12511

Re: How much vacuum

Tim wrote: Sun Oct 15, 2023 8:36 am Suggest a trusted brand that will more than fulfill your needs.

43-MT1721
THIS.
by Cusser
Sat Oct 14, 2023 7:53 am
Forum: Automotive Air Conditioning Forum
Topic: Drain oil out of new compressor?
Replies: 8
Views: 4831

Re: Drain oil out of new compressor?

bohica2xo wrote: Fri Oct 13, 2023 6:41 pm For reference I believe Cusser is using a lab pump like a Welch Duo Seal.
Yes. I have a Cenco Hyvac2, capacity is listed as 1 qt. oil.
Image
by Cusser
Fri Oct 13, 2023 2:59 am
Forum: Automotive Air Conditioning Forum
Topic: Drain oil out of new compressor?
Replies: 8
Views: 4831

Re: Drain oil out of new compressor?

3b auto wrote: Thu Oct 12, 2023 8:44 am Thanks that was helpful. I have no way to test whatever oil it shipped with.
Maybe thats why folks change it out to ensure the proper PAG

Not sure if mineral oil is still used in modern day R134A ?
No - mineral oil is not used with R134a, not compatible.
by Cusser
Thu Oct 12, 2023 6:55 am
Forum: Automotive Air Conditioning Forum
Topic: Drain oil out of new compressor?
Replies: 8
Views: 4831

Re: Drain oil out of new compressor?

My replacement compressor comes loaded with oil, some say drain and refill but Im not sure why? I'm not an AC professional. 1. The oil in the replacement compressor might be of the incorrect type. In the early 2000s I once purchased a replacement compressor (from this board's sponsor) for my 1988 M...
by Cusser
Thu Oct 12, 2023 6:44 am
Forum: Automotive Air Conditioning Forum
Topic: Reusing R134A
Replies: 4
Views: 2629

Re: Reusing R134A

I'm not an AC professional.

Using my home-made recovery system (which uses dry ice and alcohol), I have recovered and re-used both R-12 and R134a.
by Cusser
Thu Oct 05, 2023 6:39 am
Forum: Automotive Air Conditioning Forum
Topic: What is best way to seal up/get ready a system for later vacuum and charge?
Replies: 5
Views: 2610

Re: What is best way to seal up/get ready a system for later vacuum and charge?

A modern AC recovery/fill machine can do this at 80F.

If you leave the system empty or under vacuum, air and moisture can enter.

If it ever got colder than 80F here in Phoenix, I'd still fill my vehicles.
by Cusser
Thu Oct 05, 2023 6:35 am
Forum: Automotive Air Conditioning Forum
Topic: Receiver Filter Drier selection questions
Replies: 3
Views: 5127

Re: Receiver Filter Drier selection questions

If you have a minor leak, that's a different problem. As I understand things: The drier can retain tiny amounts of moisture, but it's main function is to ensure that liquid refrigerant goes to the expansion valve, why it feeds from the bottom and gets installed pretty much vertically. I'd say that a...
by Cusser
Thu Oct 05, 2023 6:29 am
Forum: Automotive Air Conditioning Forum
Topic: Does air get in system when using AC manifold gauges?
Replies: 5
Views: 2090

Re: Does air get in system when using AC manifold gauges?

My question was about just hooking up gauges in general, on a working system (not on an empty one or one that needs to be charged), in order to measure pressures. Say, for example, I want to double check pressures on a really hot day a month from now... I'm not an AC professional, but I say "N...