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Any Air-Conditioner Improvement Mods?

70257 Views 65 Replies 41 Participants Last post by  Viceroy
Are there any Air Conditioner Improvement Mods?

Just got my AC competely charged.
Works OK except in the Hot Sun.
Then takes a while to cool down.
Not very well at Idle.

My Dad's 94 Roadmaster seems to be cooler and quicker.

Was wondering if there were any tricks to improve AC performance?
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I had to swap out the compressor today, and after reading through this and several other threads, I have a couple points that I didn't see included previously:

You DO NOT have to remove the 3 10mm bolts from the back side of the compressor to remove it. You have to remove ONLY the 15mm nut on the stud retaining the A/C lines. The 10mm bolts hold on shields that you can swap over to the new compressor from the comfort of a nice chair or workbench. Don't struggle. It will come out and go in easily enough. (I found this out AFTER removing the crap from the back. Then I said hey, I wonder if the new one will go in with all the crap on the back. Yeah, it does.)

The compressor calls for a Delco number (I don't have it in front of me now) of PAG oil. After looking this up, it is PAG 150, which is readily available at a fraction the cost of the Delco.

Oh, and the job is EASY! Easier than I thought it would be anyway, thanks in part to the forum! :D

Another thing, I did my ignition wires while I was down there. WAY easier with the compressor off! ;)
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