A/C question

Warped

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Well it was 95* in Fort Worth today so I finally got around to checking the A/C in the GN. I haven't run the A/C in a couple of years. Still running R12. Gauges show 53 on the low side and 325 on the high. Looks like the shop manual says it should be around 35 and 240. Simply overcharged? What numbers should I be shooting for?
 
Sounds like there's a compressor issue. As a rule the low should be around 30-40 and the high shouldn't be over 300 at idle. My best guess is that there's some trash in the system and causing the high pressures or the fan's not working right.
 
Sounds like there's a compressor issue. As a rule the low should be around 30-40 and the high shouldn't be over 300 at idle. My best guess is that there's some trash in the system and causing the high pressures or the fan's not working right.
Thanks for the advice.
 
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