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Xringer · 01-29-11, 05:54 PM

I don't recall the chain of events, but afterward, finding the leak wasn't too hard.
I think it must be a pretty large leak. When I shot in some nitrogen, it wasn't
too hard to locate the leak. Used some tubing held up to my ear and poked
around until I could hear the hiss of the leak..

I think what happened was an over-pressure event, that popped a pin-hole in the copper.
But I don't know for sure.

I've added refrigerant to old car ACs before.
Add one 'can' and check if the air coming out is colder..
Then, drive it for another summer..

I told a co-worker how to do it.. He did it and got it running cooler!
THEN, a few days later, he went on-line, and found out what the output air temperature
specs were, And started adding more cans of refrigerant, until he hit the spec.
I think he must have added about 6 pounds.
Because on the hottest day of August, he took his wife and new baby
on a long car trip to Cape Cod.. Once they were about 4 hours from home,
the AC lost all it's refrigerant (and it's compressor)..

Later, he was mad at me. Like I told him to add 6 pounds!! LOL!!

01-29-11, 05:54 PM	#304
Xringer Lex Parsimoniae Join Date: Feb 2009 Location: Woburn, MA Posts: 4,918 Thanks: 114 Thanked 250 Times in 230 Posts	I don't recall the chain of events, but afterward, finding the leak wasn't too hard. I think it must be a pretty large leak. When I shot in some nitrogen, it wasn't too hard to locate the leak. Used some tubing held up to my ear and poked around until I could hear the hiss of the leak.. I think what happened was an over-pressure event, that popped a pin-hole in the copper. But I don't know for sure. I've added refrigerant to old car ACs before. Add one 'can' and check if the air coming out is colder.. Then, drive it for another summer.. I told a co-worker how to do it.. He did it and got it running cooler! THEN, a few days later, he went on-line, and found out what the output air temperature specs were, And started adding more cans of refrigerant, until he hit the spec. I think he must have added about 6 pounds. Because on the hottest day of August, he took his wife and new baby on a long car trip to Cape Cod.. Once they were about 4 hours from home, the AC lost all it's refrigerant (and it's compressor).. Later, he was mad at me. Like I told him to add 6 pounds!! LOL!!