Search found 8 matches

by Wren
Thu Feb 01, 2018 9:09 pm
Forum: Automotive Air Conditioning Forum
Topic: PAG-oiled components in former mineral oil systems. Corrosion Issues?
Replies: 7
Views: 1485

Re: PAG-oiled components in former mineral oil systems. Corrosion Issues?

OK great, but that doesn't answer my initial question about using components that were initially used with PAG oil in a system that used to have R-12/mineral oil.
by Wren
Thu Feb 01, 2018 8:24 am
Forum: Automotive Air Conditioning Forum
Topic: PAG-oiled components in former mineral oil systems. Corrosion Issues?
Replies: 7
Views: 1485

Re: PAG-oiled components in former mineral oil systems. Corrosion Issues?

Dougflas wrote:Why not just use POE Bava oil?


How is that different from the ester oil I'm currently using? I bought it from AMA.
by Wren
Thu Feb 01, 2018 6:41 am
Forum: Automotive Air Conditioning Forum
Topic: PAG-oiled components in former mineral oil systems. Corrosion Issues?
Replies: 7
Views: 1485

PAG-oiled components in former mineral oil systems. Corrosion Issues?

Are there any corrosion concerns when using a compressor and condenser from an R-134a (1993 Volvo 240) car in a system that originally came with R-12/mineral oil (1992 Volvo 240)? It seems like I've read that the remnants of the PAG oil that will be present in the compressor and other components wil...
by Wren
Tue Aug 01, 2017 10:27 am
Forum: Automotive Air Conditioning Forum
Topic: Universal Parallel-flow Condenser
Replies: 0
Views: 1406

Universal Parallel-flow Condenser

Does anyone know a source for parallel-flow condensers that have the inlet/outlet pointing perpendicular to the long axis of the condenser? I've bought and used the more commonly available ones where the outlets are inline with the flues, but it sure would be easier to work with one with the inlet/o...
by Wren
Tue May 24, 2016 3:56 pm
Forum: Automotive Air Conditioning Forum
Topic: Various Scales on Manifold Gauges
Replies: 9
Views: 4205

Re: Various Scales on Manifold Gauges

Dougflas wrote:Google is your friend.

I'm sorry, but that doesn't help me to understand what's going on.
by Wren
Tue May 24, 2016 9:49 am
Forum: Automotive Air Conditioning Forum
Topic: Various Scales on Manifold Gauges
Replies: 9
Views: 4205

Re: Various Scales on Manifold Gauges

Dougflas wrote:The temperature scales are the saturated temp of the refrigerant.


What does that mean and why is it relevant and/or useful?
by Wren
Tue May 24, 2016 8:49 am
Forum: Automotive Air Conditioning Forum
Topic: Various Scales on Manifold Gauges
Replies: 9
Views: 4205

Re: Various Scales on Manifold Gauges

That is basically a P/T chart for both R12 (white scale) and R134a (Red / blue scales) It is used as a quick reference. So what you're saying is that the red/blue scales used as a quick reference when the system has been equalized after a few hours rest as a quick test and not used when charging/ve...
by Wren
Tue May 24, 2016 8:19 am
Forum: Automotive Air Conditioning Forum
Topic: Various Scales on Manifold Gauges
Replies: 9
Views: 4205

Various Scales on Manifold Gauges

On my Mastercool gauges, there are three separate scales. An outer one for PSI readings and two inner ones, one labeled R-134a and the other for R-12 along with various numbers which I assume represent degrees Fahrenheit. How are these inner scales used? I'm asking specifically about the blue scale ...

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