No, I lubricated them with PAG oil per the recommendation of the compressor supplier. I'm out of proper size o-rings now; I'll get a metric ring kit and some Nylog from ACKits.

I suspect that I somehow nicked or pinched the o-ring on the suction side of the TXV. It was a pure-dee b*tch to get that line onto the TXV without cross threading the nut....

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Never a dull moment at Berry Hill Farm.