Subject	90tt R134 conversion and a/c rebuild. A/c vaccum leak?
Posted by	Jkova300z on October 21, 2014 at 5:18 PM
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Message	So I rebuilt the entire a/c: flushed all lines, low mileage compresor that works, all new green O-rings, new condensor, drier, fittings. Lubed the O-rings before install, and new oil in system. Vaccum tested system with ac manifold, system held -30 hg. QUESTION IS: after over 24 hrs of holding that vaccum, the gauge came up just a tad, to maybe ~-29 hg. The needle barely moved. I know people don't usually test it that long, but, is this significant enough to think that the system is leaking? Will a positive pressure charge of r134 hold under this condition? I Charged the system with small amount of r134 and dye kit ran it. Upon the UV test No dye anywhere in the bay or condenser area. ONLY place I have not serviced is inside the car at the evaporator. What are some suggestions?
Follow Ups	90tt R134 conversion and a/c rebuild. A/c vaccum leak? - Jkova300z 17:18:05 10/21/14 The only real Vacuum test is a Micron Gauge. - Cjw3 20:33:40 10/21/14 It could be the vacuum stabilizing or a small amount of - Tanley 20:43:54 10/21/14 Good advice. Only spots I think could still leak - Jkova300z 08:07:40 10/22/14 If you don't remove the TSV and use a r134a condenser - JMartz 11:28:08 10/22/14
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