Quote:
Originally Posted by cbjukraine
Rich, I have a nitrogen cylinder right now with about 1500 psi still in it. Got the regulator too. Do you think it would be wise to go buy a small bottle of r134 and shoot a little in there? I could pick up the cheap Harbor Freight sniffer and check that way. I've tried the soapy water test with no results.
I intend to use R12 eventually, so I don't really want to re-flush the system if the R134 will contaminate the R12 mineral oil.
The last time the compressor (R4) was on the car a few days ago, I pressurized to 200 psi and it leaked down to 160 psi overnight. Not sure if that qualifies as a slow leak, but it seems like a big one to me.
The back story here is that the A/C was working great (33-34* vent temps in high 90s weather) in Summer 2012 by installing a new Compressorworks R4, flushing, and charging with R12/Mineral oil. But then I had to put the car in storage for 15 months, and when I came back to get it, the R12 was all gone.
|
If the system is not used, it will definitely leak out after sitting that long. If you have the compressor off the car now, the only thing you could do is to make some kind of adapter hose to test the system without the compressor in place (yes I think that is what you originally suggested). If you will be going with the Sanden, the only factory hoses you will need are the two going into the cabin (little one connected to the drier, and big one connected to the low side hard pipe). You would need to make a hose that has a #12 male Oring on one end, and a #10 female Oring on the other with some kind of port in the middle. That way, you would only be testing the components that would remain as part of the new system. The other option would be that which I suggested earlier= install all the new components and then leak test. If you still have a bad evaporator or condenser, either way of testing should reveal it.