DoctorMuffn Posted March 19, 2004 Share #1 Posted March 19, 2004 I have a '73 240Z with a retrofitted (if that even qualifies as the 240s didn't come with A/C anyway) A/C system. I need to know how much of a R134a charge it will need.I'm working on my system at school in automotive A/C class, but I've yet to find any hard facts on how much charge it takes. The most I know about it right now is that it has a massive York Compressor. Unfortunately the compressor's clutch is constantly engaged when I turn the A/C on which will be another problem I have to address.Any help on how much charge I put in the system will be great. Thanks!The Doctor Link to comment Share on other sites More sharing options...
Xargon321 Posted March 19, 2004 Share #2 Posted March 19, 2004 its like 85% percent of what it fills with r12 Link to comment Share on other sites More sharing options...
DoctorMuffn Posted March 20, 2004 Author Share #3 Posted March 20, 2004 How much charge of R12 would I need? I can do the math, but I need to start with a base figure of something.Thanks Link to comment Share on other sites More sharing options...
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