can not locate freon leak
Hello all,
Converted the R4 to a sanden. The R4 pancake always leaked slow.. First charge with the sanden, (pulled a vacuum sat overnight with no loss) i loss the freon.
Second time,, I charged the system with 125 PSI of air and thought i found an o-ring as the culprit. changed oring,, charged to 125 psi, sat 2 days, no loss. Flushed, vac'd, charged and still losing freon.
I though,, service valve but i can sniff and soap them with no leak.
Any Ideas???? 134 runs at +200 psi so maybe a nitrogen charge to find it?
Last year,, i was loosing coolant, pressure tested and could not find it,, pulled the heated core before a big trop and sure enough, a green stain was on the core.. never smelled it, never showed up testing. I am wondering if it is something like that?
Thanks
Chris
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