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Big leak-adding 134a with dye?

bio-me on Thu July 17, 2008 4:04 PM User is offline

Year: 87
Make: ford
Model: f250
Engine Size: 6.9
Refrigerant Type: 134a conversion

I did read all the posts on leak detection, but still can't seem to understand the exact best way to add 134a w/dye to my system.
I just completed a 134a conversion and now have a big vacuum leak, drops to zero in anout 15 min. I thought I would hear it sucking air at that rate.
I read about charging and using soapy water for big leaks. I don't want to waste money on dye. I did buy the cheaper Mastercool uv test kit.
Any advice on hoe to proceed.
Thanks, Mike

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87 f250 6,9 diesel

TRB on Thu July 17, 2008 6:29 PM User is offlineView users profile

You will need to add some refrigerant to the system along with the dye for it to show up at your leak point or points.

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CCWKen on Thu July 17, 2008 11:23 PM User is offlineView users profile

If it's that big of a leak just pressurize it with air and use soap. I wouldn't waste the refigerant or Nitrogen.

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Ken Kopsky

Custom Car Works
"Rules are for the guidance of wise men and the obedience of fools."

HECAT on Fri July 18, 2008 9:24 AM User is offline

Be careful if testing with compressed air. This is a UL required safety warning for all refrigerant service equipment.

Caution – Do not pressure test or leak test HFC-134a service equipment and or vehicle air conditioning systems with compressed air. Some mixtures of air and HFC-134a have been shown to be combustible at elevated pressures. These mixtures, if ignited, may cause injury or property damage. Additional health and safety information can be obtained from refrigerant manufacturers.

Why? Because somewhere, sometime; someone blew themselves up.

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CCWKen on Fri July 18, 2008 6:00 PM User is offlineView users profile

Ops, you're right about that.

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Ken Kopsky

Custom Car Works
"Rules are for the guidance of wise men and the obedience of fools."

iceman2555 on Fri July 18, 2008 9:24 PM User is offlineView users profile

Check your gauges.....first....

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The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government.
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