converted to r134 but problems arose

[CRX-TC]

converted my rex with r-134a and 1.5 cans of refrigerant. After the first can I heard the a/c pump finally turn on and cold air blew. But the psi was still not too high so I put another can in and I lost all pressure from a bottom line and now it wont hold pressure it just hisses out. Anyone know how I can get myself out of this or how screwd i am? thanks in advance.

[4G4D Store]

Sounds you might just have a bad seal or a cracked hose or something. What all did you do for the conversion - I'm thinking of doing the same thing myself - want to know what all is involved.

[CRX-TC]

All the conversion is is a new size fitting. You have to release what is left of the old R-12 and then release the cans into the system while the car is runnin and a/c on full blast. It was really easy and worked great until I lost all pressure. Its gettin mad hot on the east coast, you know? =)

[4G4D Store]

You may have a seal that went out - I've heard the stock rubber seals don't like the r-134a - can't verify it though.

[johnb16a2]

I've done it. I replaced all the O-rings, the dryer, the condenser and pipe connecting the lower connection on the condenser to the dryer (because the lower fitting seized and I striped the threads requiring the condenser and lower pipe change). I then brought it to the local A/C shop for the flush, fitting change, and recharge. It works great now. GL

[91civichatch2571]

did you charge the high side or the low side?

[Hybrid1990crx]

you can charge on either side if you have a real ac machine. but i dunno about those shitty DIY ones. Sounds like you have a bad schreader valve in your line, replace it, and make sure you dont get any of that shit in your eye, cause it can freeze it.

[91civichatch2571]

charging the high side can ruin the compressor

[Hybrid1990crx]

you charge on the high side with the car running. i never heard of it ruining the condensor, my teacher at school never talked about it and I took AC twice. The only thing to worry about is high pressures.

[4G4D Store]

Does anybody know what pressures the r12 and r134a run at?

[Greenblurr93]

my kit came with a gauge with the acceptable pressures in a green zone. ive done this retro to all 6 of the cars ive owned and they lasted me a while and were ICE cold if done correctly. currently my civic was blowinf ice for 2 years until i swapped out my crappy Z6 for something a bit more potent...... but then i chose to not have AC or PS so i dont need it now (and yes the one summer i dont have AC gets consecutive 90+ degree days here in MA..)