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tsuter tsuter is offline
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Join Date: Dec 2002
Location: San Antonio, Texas
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Another note I've not seen much is MAKE sure your new expansion valve was set for R134A not R-12.

With R134A you want low side pressures of 18-20psi to get really cold. That control comes from the expansion valve adjustment. If it was set for R-12 you'd see 28-30 low side PSI and get only 40+F or so at the vents w 134a.

So whoever sold you that valve make sure it was set for R134a not R-12. And if they say its the same or doesn't matter you should get it somewhere else.
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tsuter
78 911SC Turbo Targa
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Old 03-08-2008, 10:14 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    #9 (permalink)