JHZR2
Staff member
1991 Mercedes 350SD.
R12 system converted to 134a before I got it.
Has a slow leak. Noted oily residue at service ports and this one connection. Replaced R/D and all o-rings, and the service fittings. Didn’t sniff any leakages. Vacuum held properly.
Right side connection:
Had a 22mm weight grip wrench slip off when trying to tighten this. I can’t tell if it’s tight.
The o-ring was lubricated, nylog was used on all connections.
But I see oil leakage. Seepage
It’s definitely in the large threads. Not just on the pipe heading downward.
I had used a proper fitting 1 1/16 crowfoot flare wrench. I tightened it to the point that it wouldn’t tighten. Didn’t try to gorilla tighten it. But it was tight enough that a misplaced wrench slipped off a bit.
How tight should these fittings be torqued to? Just “wrist tight”, right?
R12 system converted to 134a before I got it.
Has a slow leak. Noted oily residue at service ports and this one connection. Replaced R/D and all o-rings, and the service fittings. Didn’t sniff any leakages. Vacuum held properly.
Right side connection:
Had a 22mm weight grip wrench slip off when trying to tighten this. I can’t tell if it’s tight.
The o-ring was lubricated, nylog was used on all connections.
But I see oil leakage. Seepage
It’s definitely in the large threads. Not just on the pipe heading downward.
I had used a proper fitting 1 1/16 crowfoot flare wrench. I tightened it to the point that it wouldn’t tighten. Didn’t try to gorilla tighten it. But it was tight enough that a misplaced wrench slipped off a bit.
How tight should these fittings be torqued to? Just “wrist tight”, right?