1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

A/C System questions - Pressures

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Old 06-29-10, 09:34 PM
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A/C System questions - Pressures

What are the working pressures supposed to be for my '82 Dealer A/C? And what is the High Side Switch in the filter/dryer set to cut the compressor off at?

Thanks!
-Paul
Old 06-30-10, 08:28 PM
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Reinstalled the A/C this week. When I got the car the compressor made noise and the system was empty. Year and a half later now that I have access to the proper tools and machines to setup the system. So I hooked everything up with new o-rings and tested for leaks. So far she blows cold! I'll give it a few weeks and put in a new expansion valve and filter/dryer. Also put on an Izuzu Diesel Alternator. It's huge! LOL Gotta drill out the dual pulley and put that back on.

Here's some pics.
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Old 07-07-10, 11:47 AM
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Old 07-07-10, 01:36 PM
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Try this link.

http://www.aa1car.com/library/ac_recharging.htm

Item 10 lists the pressures for high and low sides. Pressures are very dependent of the outside temp where you are charging it.
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