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Leaking aeroquip fittings??

Posted: Sun Jan 26, 2020 9:27 am
by Amphicar770
Hi all,

About 3 years back I redid the AC on my '74 Porsche 914. Flushed everything, new compressor and other bits, redid all of the hoses and fittings with aeroquip components. Held vacuum great for over a month. Blows ice cold. Kept it as R12.

Fast forward approx 3 years later, not blowing cold. Needed about a pound of R12 to get back to specified pressures. Again, ice cold. Now the question is, "where is it leaking from".

I ran sniffer along system and discovered that if I get right on top of the fittings, where they meet end of hose, that I get some beeping. Unfortunately, not just one connector but multiple. They are all assembled correctly using aeroquip cages and tool. Needless to say, I am pretty dissapointed at this outcome.

Not sure what best course of action is short of replacing everything. Was considering applying a poly or epoxy sealant where end of hose meets fitting but not sure if that would work.

Any ideas or similar experience welcomed.


Re: Leaking aeroquip fittings??

Posted: Sun Jan 26, 2020 10:28 am
by bohica2xo
Contact Aeroquip and find out what the annual permissible leak rate is for that fitting. Everything leaks a little. You are losing a pound in 3 years across 8 fittings and several feet of hose.

Commercial stationary comfort refrigeration is allowed to leak 10% of the total charge per year by the EPA Above that it must be repaired. Process refrigeration can leak 20% Those are brazed all metal systems.

Leak rate sounds like most 1970's cars. Perhaps Aeroquip has some suggestions or input.

Re: Leaking aeroquip fittings??

Posted: Sat Feb 08, 2020 8:49 pm
by Amphicar770
Reached out to them (Eaton) via their web site. Never got a reply. :x