R134 convert

anyone here has converted an R12 to an R134?

Are these guys still around?

Is everything still working on your a/c? I just bought one of the r134 conversion kits and did it myself. I went to pepboys and had them suck out all the old R12 then I threw on the conversion kit. Takes about 3mins to install all you do is screw on two fittings, one for low, one for high, then connect the hose / guage to the low side and put in the can of the oil / conditioner / stopleak, then you just fill it with the can of r134 to whatever amount it is supposed to take. Even if your system has a leak r134 is so cheap it doesnt matter if you have to fill it once a month. IMHO

** Hi all, ** ** My 93 5.0's A/C is getting a little tired. Just wondering if anyone here has converted an R12 to an R134? ** If so, would you recommend it, or should I "fuggettaboutit" ** ** I've gotten prices ranging from $135.00 to $300.00+

I've not only done it, but I've gone both ways on 2 different vehicles.

V1: Paid nearly $700 bucks for a new compressor, hoses, accumulator, VOV, the works, including shop labor. It works GREAT. Better than the R12 system.

V1: Did it myself. Only replaced the accumulator with one that was compatible with R134A and installed a VOV. Blew the old oil out of the system with compressed air, and injected some 'Ester' oil into its place (as opposed to PAG.) Didn't even vacuum out the system - just charged it up with 134A and fired it up. The result? It works GREAT.

I would make the change myself, if I had to do it all over again. Just remember to use Ester oil, not PAG, and install a VOV (variable orifice tube unit) instead of a standard orifice tube; it meters refrigerent more efficiently and prevents compressor flooding, esp. at idle. It's only about $15.00 at Kragen/Shucks, and worth every penny. Just blow the oil oil out with compressed air, and be SURE to change the accumulator/dryer with one that is 134A compatible. (The dessicant is different from R12 units.) Other than that, charge that sucker right on up, and it will work just fine.

Also, keep in mind that less 134A is required to fill the system than R12. As a rule of thumb, hook up a guage to the high side (with the system off!) then charge until it hits 300 psi. Normally, that's all that is needed; depending on ambient temps, I may put a little more in, but I *never* exeeed 350 psi, regardness of ambient temps; R12 systems aren't designed for much more than that.

-JD

________________________________________________________ | | | 1998 Laser Red GT RAMFM Member Since 1998 | | M-5400-A Suspension http:/207.13.104.8/users/jdadams || Subframe Connectors & Seat Bracing, Strut Tower Brace || 4-point K-frame Brace, Tremec T-45 & OEM 3.27:1 Gears ||________________________________________________________|

Yep and did it myself.

I thought you are only supposed to fill the AC system on the low side ? 300psi is a LOT of pressure.

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My 93 5.0's A/C is getting a little tired. Just wondering if anyone here has converted an R12 to an R134? If so, would you recommend it, or should I "fuggettaboutit"

I've gotten prices ranging from $135.00 to $300.00+

Thanks

JP

He -is- filling on the low side... the gauge is on the high side.

Rob

** I thought you are only supposed to fill the AC system on the low side ** ? 300psi is a LOT of pressure.

Yes, one should only fill the system from the low side. The 300 psi. figure comes off the high side gauge, while filling through the low side.

When ambient temps approach 100+ degrees, It's not uncommon for my A/C high side to exceed 375+ psi. Yes, that is a LOT of pressure, and a good reason why I shut it down and let things settle down past 100 psi. before I unplug the gauge. Otherwise, it sounds like a bomb going off in my face.

-JD

________________________________________________________ | | | 1998 Laser Red GT RAMFM Member Since 1998 | | M-5400-A Suspension http:/207.13.104.8/users/jdadams || Subframe Connectors & Seat Bracing, Strut Tower Brace || 4-point K-frame Brace, Tremec T-45 & OEM 3.27:1 Gears ||________________________________________________________|

No, plugging the little can into the high side is what sounds like a bomb going off on your face....

LOL

Before the advent of two sizes ports, the small can going off like a bomb in the face, and between the legs. Of many an idiot who used to put them there to raise the temperature is what you would hear.

Of course if you weren't intelligent enough to shut them down?

Refinish King

Holy shit. I see you learned sentence construction from that guy who's been translating Japanese instruction manuals into English for the past thirty years.

CobraJet

CobraJet wrote the following, which while being attributed to fact was none the less being challenged::

All Your Base Belong To Us

;)

Wm