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1985 Corvette AC Restore help

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Old Jun 8, 2021 | 07:27 PM
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From: Dunkirk Md
Default 1985 Corvette AC Restore help

Need some Help. What am I doing wrong? All work done IAW 1985 Corvette Shop Manual. I am just going to list the things and the way I did it. R12 System worked before rework.
Removed and replaced everything.
  1. New Compressor
  2. New Condenser
  3. New Acum/Dryer
  4. New Evaporator
  5. All new Hoses
  6. New Orafice
Installed orafice (long screen towards condenser) all
New equipment/ hoses/Flushed, Dried and Vac. Blew shop air through all connections no blockage. Vac held for 12 hours

Installed Ester oil
  1. 3 oz in compressor,
  2. 2 ounces in Dryer,
  3. 1 ounce in condenser
  4. 1 ounce in evaporator
Charged
  1. Used gages to fill from low side
  2. High side valve closed
  3. Filled 2 3/4 cans of R134a
  4. Compressor started and cycles
  5. Does not get cold on any vents or any lines getting cold just HOT.
Low pressure gage reads 80 psi and High side reads 150 psi. All lines are hot
Took system apart again and found:
  1. No oil in Compressor
  2. No oil in Dryer
  3. No oil in Condenser
  4. All oil in bottom of Evaporator

Repeated everything above. Ordered a new dryer will install and start again to fill.

Thanks for any input. My hair is getting gray! Art
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Old Jun 9, 2021 | 12:32 PM
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Thank you for the no responses. Anyway I did everything a listed above again and got 47 degrees a center vent. All pressures are in accordance with the 1985 Corrvette shop manual. Thanks again
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Old Jun 9, 2021 | 12:48 PM
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From: LeClaire Iowa
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Originally Posted by agillings
Thank you for the no responses. Anyway I did everything a listed above again and got 47 degrees a center vent. All pressures are in accordance with the 1985 Corrvette shop manual. Thanks again
Not everyone here (myself included) is an AC Expert. Your question requires an answer from a true expert. Maybe did not give it enough time. Maybe could have done a search for AC posts and found the name of an expert here that you could have sent a PM to. I am sorry I did not respond right away with the statement, "I don't have a clue". Dan
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