Posted by jim on 6/30/2009, 4:42 pm, in reply to "Thank, Jim"
98.219.141.142
It may be worth the little money to have the system evacuated and hold a vacuum on it for 24 hours. This will evacuate all moisture (vac lowers the boiling point of the water so it boils out) and also and leftover R12, R134 and any of the other snakeoil mixtures on the market that can cause problems.
I'd at least do this before the recharge. To go further, change all seals out and also the expansion valves to the correct units for R134. If it leaked R12, it will definitely leak the R134 out since it is molecularly approx 2.5 times smaller than R12 (just like adding Nitrogen to your tires and they start leaking all the sudden)
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