A/C R12-to-R12a Refrigerant Recharge Results

[Sir Jacob the 2nd]

Anyone know if i currently have the system charged with 134a if I can basically evac and then recharge with the 12a or is that a big no no? 

I don't know a whole lot about it so any input would be helpful

[HOrnbrod]

RED TEK® 12a™ is a proprietary blended ultra high efficient hydrocarbon refrigerant designed as a direct replacement for 134a and R-12 substitutes.

 

Quoted from their website.   http://www.redtek.com/English/product.asp?ID=53

[Sir Jacob the 2nd]

awesome thanks!

[caseyrstewart]

Hey guys,

 

I appreciate the recommendation. I've got an '87 Comanche that hasn't blown cold for a couple years now. I thought perhaps the system needed a recharge, so I purchased the Red Tek 12a package from Amazon, started by hooking up the can of leak stop and oddly enough found the pressure to be very high (like 75-80 PSI). I believe I hooked it all up properly. I used the adapter with the blue cap and threaded to the service port with the larger hose. Am I doing something wrong here?

 

Best,

Casey

[HOrnbrod]

Did you open the low side service valve, start the engine, then turn on the A/C?

[caseyrstewart]

Did you open the low side service valve, start the engine, then turn on the A/C?

Got it! Didn't realize the service ports had valves underneath a cap...

[cruiser54]

[SBpunk]

You should do a writeup for dummies on this hahaha I tried an ended up locking up my compressor temporarily. Pulled it to replace it and the old one spun better than the junkyard one I pulled.