1st/2nd genner factory A/C ?'s (again)

1261 Views 6 Replies 5 Participants Last post by sevenzeronova, Sep 7, 2012

the FLYER

Discussion Starter · Sep 7, 2012

any of you guys who are running the under dash AC convert to 134?

what would i need to do to convert over from R12?

thanks a lot, appreciate the assistance. :thumbsup:

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63ssvert

· #2 · Sep 7, 2012

Hi and Low side connectors are different size(Metric?), I think you can get adapters at any parts house:yes:

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the FLYER

Discussion Starter · #3 · Sep 7, 2012

Greg, i'm lost... i have no idea what you're referring to... can ya 'splain it to me?

is this on the compressor?

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David&Melissa_h

· #4 · Sep 7, 2012

the FLYER said:
Greg, i'm lost... i have no idea what you're referring to... can ya 'splain it to me?

is this on the compressor?

the charging ports are different..
I'm sure if you run a 134a compressor with all new lines you should be ok.:yes: its the freon and oil that is the main change over.
The evap. it just a holding/boiling chamber it doesn't care what freon is n it.

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the FLYER

Discussion Starter · #5 · Sep 7, 2012

awesome, thanks Dave!!!

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MBZTECH

· #6 · Sep 7, 2012

Heres a link as to what the fittings look like if you using the old hoses . You will have to change the comp oil to Esteroil local parts store should have it and get new fittings for you're gauges also. RICK
http://www.ebay.com/itm/Retrofit-Fi...Parts_Accessories&vxp=mtr&hash=item19d4f9cd9a

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sevenzeronova

· #7 · Sep 7, 2012

DROP-IN ALTERNATIVES FOR R-12 REFRIGERANT
Alternative refrigerants that have been found acceptable for automotive applications are below. The suppliers of the alternative blends say their products typically cool better than straight R-134a in systems designed for R-12, and do not require changing the compressor oil or desiccant in some cases. Changing the desiccant to XH-7 is usually recommended if an R-12 system is converted to R-134a. The desiccant should also be replaced if a blend contains R-22 because R-22 is not compatible with XH-5 or XH-7 desiccant. The recommended desiccant in this case would be XH-9.

Free Zone (RB-276). *Supplied by Refrigerant Gases, this blend contains 79% R-134a, 19% HCFC-142b and 2% lubricant.

Freeze 12.*Supplied by Technical Chemical, this blend contains 80% R-134a and 20% HCFC-142b.

FRIGC (FR-12).*Made by Intermagnetics General and marketed by Pennzoil, this blend contains 59% R-134a, 39% HCFC-124 and 2% butane.

GHG-X4 (Autofrost & McCool Chill-It).*This blend is supplied by Peoples Welding Supply and contains 51% R-22, 28.5%

HCFC-124, 16.5% HCFC-142b and 4% isobutane (R-600a).

GHG-HP. Also supplied by Peoples Welding Supply, this blend contains 65% R-22, 31% HCFC-142b and 4% isobutane (R-600a).

Hot Shot\Kar Kool.*Supplied by ICOR, this blend contains 50% R-22, 39% HCFC-124, 9.5% HCFC-142b and 1.5% isobutane (R-600a).

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