I understand this problem
what I did was to use a gas that I found out was a refrigerant it was of
all things computer key board cleaner... I have a side can tap so it worked
just like the r 12
I had a major leak and it was easy to find actually I needed to blow old
oil and debris out of a system and this worked fine then I added oil , charged
the system and let it run for 4 or five weeks when there was no pressure
loss I was assured of a tite system I then evacuated the system and
evacuated
the system and added the correct refrigerant and it worked ....( now I know
there are going to be a lot of neg stuff said here ) this system still works
fine ,,,, both of them !!!!! ) the reason I did not just was air was
because I needed a DRY GAS and air has way too much moisture in it and also
it is
not condensable gas.
actually any dry gas can be used to test for leaks
mike collins
1985 500 sec
