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How much oil and freon required?

BG1 on Mon September 13, 2010 11:19 AM User is offline

Year: 1976
Make: Pontiac
Model: Firebird
Engine Size: 455
Refrigerant Type: r12
Country of Origin: United States

I have taken the compressor off and drained it and getting ready to flush the system but I need to know how much oil and freon the system needs. I tried to look it up on the chart but it does not go back to 1976. Thanks

Spector on Mon September 13, 2010 8:02 PM User is offline

Couldn't find the oil volume but it takes 52oz of R-12

chris142 on Mon September 13, 2010 8:50 PM User is offline

If this car has an A6 compressor the compressor has a check plug near the bottom. It holds about 10oz of oil. Originally You checked the oil with it charged, loosened the bolt and if oil came out it had enough. Besides the 10oz you should also add 3-4oz to the lines for O-Ring lube.

If it's not an A6 disregard every thing I just said.

TRB on Mon September 13, 2010 9:11 PM User is offlineView users profile

Compressor Type GM
Part Description COMP A6 1GR 5in 12V 2:00 METRIC W/SH SW /R12
Compressor Model A6
Clutch Diameter 127mm
Oil Capacity Oz 10
Grooves 1
Switch Type SHS
Voltage 12
Compressor Mount DIRECT
Coil Pos. 2
Fitting GM PAD


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BG1 on Wed September 15, 2010 8:07 AM User is offline

Thanks for the information. BG

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