I have converted a lot over the years. Some with the whole deal, new drier, flushing system, new expansion valve, either different compressor due to that being the reason for working on it. Some, just evacuated and added R134A. That being said, I have seen some really sludged up systems that have been just adding different refrigerants. Can make a real mess. But, what are you out really, as you may have to give it the works when it fails or give it the works now. The new hoses do have a lining in them to hold R134A. A 85% charge of the max recommended original charge works well. Air conditioning work can be a real pain.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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