69-er

Does anyone have an 83 or 84 Camaro with A/C that could look at the sticker on their evaporator core and tell me what the quantity of R-12 is supposed to be in the system? I believe to be accurate, I need the quantity of the 5.0 liter cars, preferably with the L69.

I went to the salvage yard today and looked their Camaros. The charge varied between 2.25 to 3.00 pounds. The early 80's tended to be on the high side and the late 80's were lower. There were also differences between the V6's and V8 cars too. Since the L69 hoses are different from the base 5.0 because of the L69 intake ducts, I'm thinking that might make a difference too. Firebirds might be the same, too.

Thanks for any help!

Larry

ZZ28ZZ

Can't help with the spec Chevrolet recommends, but to optomize the freon quanity try this:
Warm up eng, fan in front of rad if available, a/c on high-normal setting, hold rpms at abt 1800.
Place temp gauge in a/c vent. Add freon until you get your lowest vent temp. Then add small amounts until you see the vent temp just start to rise, then bleed a little off. That should get you the best trade-off between max quanity of freon in sys and optimum low-side press.