Quote:
Originally Posted by ROLLGUY
The SNIFFABLE ingredient is the refrigerant (R12, 134a etc). I have yet to have an evaporator go bad in a 123, and the leaks are found with the Nitrogen and soapy water. The installations I do are not the only work the shop does. Right now they are two weeks backed up, so I would be lucky to be able to slip in a vac and charge. All that to say that they know what they are doing, and have a great track record, even if they don't use R22. Even though I know that pressure and R22 is the best way to find leaks, I doubt I would be able to find a shop within a 100 mile radius that uses R22. There may be some that use a dry gas, but I wouldn't doubt most just vacuum to check for leaks.
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So because You have never had a 123 evaporator go wrong... you argue against using that method... as an SOP for others ? I have only had two 123 evaporators and ONE of the TWO had a leak....
Why are you talking about ' finding a shop that uses R22 ? We are NOT talking about a shop needing their equipment to be R22 compatible... as one would have the problem with HFC's and a shop only having R12 and R134a equipment...
I am glad you admit to
''''. Even though I know that pressure and R22 is the best way to find leaks'''' Rollguy
If a person wants to try nitrogen and soap .. great... but if they want the best check... read SNIFF ..... and for the sniffer to cover the entire AC system in one move.... then they know what to do...