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Car Forum / Honda Cars / August 2005a/c high & low pressures?
I have to repalce my compressor on a 94 civic 1.5L and the shop manual does not appear to give the high and low pressures - it jsut refers to max 19 oz of r134. What should my guages read when properly vacuumed and and refilled? >I have to repalce my compressor on a 94 civic 1.5L and the shop manual does >not appear to give the high and low pressures - it jsut refers to max 19 oz >of r134. What should my guages read when properly vacuumed and and >refilled? depends on ambient temperature, it's different everywhere. and did you get it down to a 400 micron vaccuum? Chip It depends on ambient temperature and blower speed... Professor www.telstar-electronics.com >I have to repalce my compressor on a 94 civic 1.5L and the shop manual does >not appear to give the high and low pressures - it jsut refers to max 19 oz >of r134. What should my guages read when properly vacuumed and and >refilled? It depends on ambient temperature and humidity, these things aren't set in stone! Chip Humidity has nothing to do with system pressures... Professor www.telstar-electronics.com > Humidity has nothing to do with system pressures... > > Professor > www.telstar-electronics.com I am not about to enter into a thermodynamic argument, but the factory service manual has graphs showing system pressures as dependent on both temperature and relative humidity. So, to the OP, go to http://www.helminc.com and get the factory manual. It will have the answer!  Signature======================================================= A very modest collection of Honda tech info can be found at: http://www.geocities.com/ng_randolph I ended up taking the car to the gas station to have the a/c fixed - I didn't have the time to work on it - too many late night at the office. They said I was right, the compressor clutch failed, but the system did have pressure. They swapped in the unit I bought from the junk year that has a 1 year warrantty on it. The problem with the horn was a corroded wire between the relay and the horn. >I have to repalce my compressor on a 94 civic 1.5L and the shop manual does >not appear to give the high and low pressures - it jsut refers to max 19 >oz of r134. What should my guages read when properly vacuumed and and >refilled? |
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