Testing for A/C leak without using refrigerant '84/AT
04-25-2015 | 12:51 AM
#31
Burning Brakes
Joined: Aug 2013
Posts: 948
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From: Northeast USA
Testing for A/C leak without using refrigerant '84/AT
Fronkenstein
04-25-2015 | 01:13 AM
#32
Rennlist Member
Joined: Apr 2006
Posts: 35,700
Likes: 503
Sean,
I use a very old school plug in leak detector, H-10B. The best out there. CPS makes a really good cordless unit.....tiff also makes a decent one.....you can get some good prices on eBay....the key is having some trace gas in when you pressurize and leak check....get your hands on some r22, while you still can....does not take much.....
The electronics don't seem to work all that great on 134a, and your right, they seem to suck on cars....I always use r22 for my trace, and I have good results.
Pressure and soap bubbles method is still my primary leak check method of choice tho'...
I use a very old school plug in leak detector, H-10B. The best out there. CPS makes a really good cordless unit.....tiff also makes a decent one.....you can get some good prices on eBay....the key is having some trace gas in when you pressurize and leak check....get your hands on some r22, while you still can....does not take much.....
The electronics don't seem to work all that great on 134a, and your right, they seem to suck on cars....I always use r22 for my trace, and I have good results.
Pressure and soap bubbles method is still my primary leak check method of choice tho'...
Will use that.
04-25-2015 | 01:16 PM
#33
Chronic Tool Dropper
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Joined: Oct 2001
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From: Bend, Oregon
Yeah and its easy more fun than nitrogen! I think I'll try nitrous oxide. Now that would be fun! Heck, I know how about helinitroxide - I just made that up on case you were wondering. Why not mix helium and nitrous? Funny voice and funny feeling. Oh yeah, helium will displace the oxygen
Fronkenstein
Fronkenstein
My darn nitrogen detector is going off all the time...
Warning on those who use nitrogen or any other compressed gasses when in a confined space -- It Will Suffocate You! Contrary to what many might think, the human body's suffocation warning is a response to elevated dissolved CO2 rather than a shortage of oxygen. So nitrogen will displace oxygen and you'll just pass out with no warning at all. Use appropriate caution.