How do you evacuate the A/C in an 84 911

[JCoop]

I have an R-12 system and I would like to recharge it myself. What equipment do I need to evacuate the system, and how is it done properly? Help!

[Porchcar guy]

If you use the search function...It should give you a good idea of what to do and what tools needed to do it

[RSTarga]

You need a high end vaccum pump, you're not going to be able to buy r12 without a licensce . take it to an a/c specialist.

[Porchcar guy]

RSTARGA has good advice, this is not a job for a beginner and the cost to a pro would be less than guages, tools etc...AND if it leaks, they can diagnose it on the spot.

[Nick Triesch]

If you do service your A/C you may want to use Envirosafe refrigerant. A little goes a long way and really comes out cold. No special paperwork to fill out. No EPA. Fantastic!

[Bob Kontak]

Originally Posted by JCoop

................ and how is it done properly?

Are you dead set on becoming the master of your R12 system or do you just want it to blow cold again?

Is there any R12 in there now? Meaning can it just be topped off or is your system empty? If empty, how long has it been empty?

[wwest]

I just had a '92 ford Aerostar, front and rear A/C, converted to r134 for $160.00.

[brads911sc]

Very poor advice since its illegal in most states.

Originally Posted by Nick Triesch

If you do service your A/C you may want to use Envirosafe refrigerant. A little goes a long way and really comes out cold. No special paperwork to fill out. No EPA. Fantastic!

[Scott R]

EPA states he can't go to ES12 in a HFC-12 original car, and in his state of California they are serious about it.

1995-1998 Enforcement Actions under Title VI of the Clean Air Act | Ozone Layer Protection - Regulatory Programs | US EPA

July 31, 1998: Venting CFC-12
Randy Lee Christensen pleaded guilty in U.S. District Court for the Central District of California in Los Angeles of violating the Clean Air Act. Christensen admitted to illegally venting CFC-12 into the atmosphere at the Santa Anna, CA-based C&C Distribution. The illegal venting took place when Christensen installed the replacement refrigerant HC-12a, which EPA has prohibited as a replacement for CFC-12 in auto air-conditioners, into automobile air conditioning systems. Christensen could serve up to five years in prison and be fined as much as $250,000.

He can convert to 134a however, or recharge with r12 of course.

[kuehl]

If you have not fixed the leaks (original hoses, o-rings, maybe the compressor, replace the drier, adding a low/high pressure switch) then recharging is not worth the effort.

But..... what you would need is an ac vacuum pump, service gauges and the procedures. If you want to insure you don't have leaks along the way, then you would need refrigerant oil dye, a black light and more preferred is a an electronic leak detector.

If you intent is a 'one time try to DIY' you may find it less costly to simply have a repair shop handle it.

Otherwise there are dozens of threads here in Pelican discussing the procedure as well as the obstacles and solutions (does not make sense to re-post the same info over and over again).