Search found 10 matches

by 69-er
Sun Jun 30, 2019 1:32 pm
Forum: Automotive Air Conditioning Forum
Topic: System Evacuation Question
Replies: 1
Views: 517

System Evacuation Question

Theoretical Question: When evacuating a system, any water turns to vapor. Where does it go? I don't see how the vacuum pump "sucks" it out as there is no flow going on; it's a static condition. Given that, once a pump gets the system to its highest vacuum wouldn't turning off the pump have...
by 69-er
Sat Jun 29, 2019 8:12 am
Forum: Automotive Air Conditioning Forum
Topic: 134A Pressure Chart Differences
Replies: 1
Views: 477

134A Pressure Chart Differences

Can someone explain why low side/high side gauge pressure charts vary so much? For example I see charts that show, at 90 degrees, a low side of approx. 30 psi and high side of 225. Another chart will show 50 PSI and 260 PSI? One chart even allows for differences in humidity. I know engine RPM, airfl...
by 69-er
Wed Nov 28, 2018 5:52 pm
Forum: Automotive Air Conditioning Forum
Topic: Someone to Weld on Fittings
Replies: 1
Views: 7356

Someone to Weld on Fittings

Can anyone recommend someone who welds on beadlock fittings? I have two short tubes that need the barbs removed and beadlocks installed.

Maybe it would be easier to get new tubes with beadlocks?
by 69-er
Wed Sep 05, 2018 7:37 pm
Forum: Automotive Air Conditioning Forum
Topic: TXV Bulb Styles
Replies: 0
Views: 2630

TXV Bulb Styles

I'm looking at possibly changing the TXV in my 1966 Chevy truck. The first pic is supposed to be for my application. Note the coiled bulb. The one in the second pic has the same flat style bulb as my original. I am concerned that the coiled bulb wouldn't transfer as efficiently as the flat one. My o...
by 69-er
Wed Sep 05, 2018 12:49 pm
Forum: Automotive Air Conditioning Forum
Topic: Rebuilding TXV
Replies: 0
Views: 2439

Rebuilding TXV

I am rebuilding the entire system in my 66 Chevy truck and need to choose between buying an new TXV or attempting to rebuild it. The new ones aren't quite the same dimensionally so I am wondering about the feasibility of rebuilding it. I would imagine the valve components would be the easy part. The...
by 69-er
Fri Aug 03, 2018 6:16 pm
Forum: Automotive Air Conditioning Forum
Topic: Trinary Switch Selection
Replies: 1
Views: 614

Trinary Switch Selection

I am installing an electric fan in my 92 Chevy truck to replace the mechanical fan. It is currently running 134A with a rebuilt system consisting of new o-rings, new compressor, accumulator, orifice tube, parallel flow condenser and a flushed system. I'm looking for a recommendation for a trinary sw...
by 69-er
Sun Jul 02, 2017 7:11 pm
Forum: Automotive Air Conditioning Forum
Topic: R134 Retrofit Procedures
Replies: 2
Views: 1976

R134 Retrofit Procedures

Getting ready to do my first retrofit to 134 for an 1987 GM vehicle. Back in the day, it seems that retrofit kits were all the rage and plentiful. Now that I need one I can't find not one in town. I know there are several ways and opinions on the best method. I'd like to see what my options are. Can...
by 69-er
Thu Aug 18, 2016 10:44 am
Forum: Automotive Air Conditioning Forum
Topic: Barrier Hose and Barb Fitting Components
Replies: 1
Views: 1620

Barrier Hose and Barb Fitting Components

Did some searching without luck on this...

When converting to R134A and also replacing the hoses with barrier type, how do you make the new hoses work with the old components that still have barb fittings?
by 69-er
Wed Aug 17, 2016 1:44 pm
Forum: Automotive Air Conditioning Forum
Topic: Fitting/Hose Compatibility Issue
Replies: 2
Views: 2020

Re: Fitting/Hose Compatibility Issue

That's what I am starting to think. Later down the road, when the new one is still working, I'll have forgotten about the cost! But I sure as hell would have remembered trying to save a buck if I used the old one if it ever failed! Anyway, if age or reliability weren't an issue, what would be the ot...
by 69-er
Tue Aug 16, 2016 4:41 pm
Forum: Automotive Air Conditioning Forum
Topic: Fitting/Hose Compatibility Issue
Replies: 2
Views: 2020

Fitting/Hose Compatibility Issue

I am upgrading an old 1966 C10 factory AC system using new components where possible. I have a parallel flow condenser, and an Everco #58098 compressor to replace the A6. I will be converting to 134A. My problem now is, what to do with the original evaporator? It looks usable and is leak-free but ha...

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