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08-18-2009, 05:52 PM
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#1 |
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Registered User
Join Date: Jan 2008
Location: walker wv
Posts: 23
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Need ac help asap
NEED TO KNOW HOW MUCH 134A A 72 CHEVY TRUCK WILL HOLD
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08-18-2009, 06:06 PM
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#2 |
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Moderator
 
Join Date: May 2007
Location: Southern Cal
Posts: 20,022
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Re: Need ac help asap
I use 2 cans on an empty system. Overcharging will cause your front seal on the compressor to leak.
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1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man RIP FleetsidePaul |
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08-18-2009, 07:11 PM
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#3 |
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Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: Need ac help asap
The refrigerant charge listed in the manual for R-12 is 3 lbs. 4 oz.
This equates to 4 1/3 cans @ 12 oz. per can. I use (4) cans of R-134 in the systems. If there are lots of bubbles in the site glass I add a tad more. Jim
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1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC |
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