Quote:
Originally Posted by Hit Man X
I have been using the conversion factor of 0.56 for R12 to R152A conversions. The 300E is on it now as the evap leaks. I only shot in 20oz last I recall as it holds just over 2lbs of R12 (2.1?). It did low to mid 40s last summer. 300psi on the high side is way high on 152A, even if it is 100F outside. It should have pressures very similar to R12.
One of my E23s is also on it as I wanted to see how it performed on a fresh system. Same temps as the 300E, car is black on black.
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I've replaced my condenser, expansion valve and drier previously, I wonder if you can get blockages in the evaporator? The only parts of my system that are original are the AC compressor, evaportor and lines. I have all 3 of those in boxes to replace, but removing the heater box is a huge endeavor and I keep putting it off!
I wonder if somehow air is still trapped in my system? I'm using a vacuum pump down to 29mmhg...is there any way to be sure?