Quote:
Originally Posted by rscurtis
A friend of mine has an 84 SD which had 134 in it when he bought it several years ago. It never cooled that well, and the refrigerant charge amount had to be right on the money. It also put a lot of load on the compressor in hot, humid conditions. So, he installed a rebuilt compressor, flushed the system, and went back to R12. Much better on every account. My '83 had never been converted to 134 and after repairs of a few leaks works perfectly.
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Same situation with my 300cd, and I went back to r12 from r-134a last summer. Now the A/C cools just as well if not better than a modern car.
The gas isn't the most expensive part of the system. I bought r12 for $17/LB last summer and $15/LB this summer.
If you took AHKAYS advice your compressor would hydrolock, A/C system get the black death. Reading instructions on the harbor freight A/C manifold gauge kit and the walmart r-134a can only makes you an expert on blowing yourself/your car's A/C system up.