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Discussion in '1978 - 1981 Specific' started by lorozco, Sep 11, 2019 at 11:25 PM.
Does anyone the R-12 charge capacity for a 1979 Z28?
Mine is an 80 but I believe it should be identical for capacity.
As far as I know, only the compressor mounting bolts changed between 79 and 80.
(They went to metric bolts in 80.)
The factory "Harrison" sticker on my evaporator case says 3.25 lbs of R12.
That's two 12 oz. cans and two 14 oz. cans.
You won't get every last bit out but slightly under-charged is better than over-charged.
Have you totally flushed/vacuumed the system and at least replaced the O-rings?
You also need to replace the accumulator/drier and the orifice tube
on systems this old to have any hope of it working well.
Don't waste your money on R12 if you aren't going to do it right!
Plus R-12 is illegal
It's not "illegal".
I have IMACA certification which allows me to buy it.
It's no longer manufactured in this country but it is still available through various sources and it's still produced by our south-of-the-border neighbors.
R12 is about as illegal as an old Camaro. Both are outdated, no longer legal to make in the US, and very nice to have.
And, both are more expensive than they were 20 years ago.
It's still around. I've got about a case and a half of it out in the garage. I started to sell some at a swap meet but When I sold a can for $15 and the guy turned around and sold it for $30, but when I asked $30, I was way too high. I just got tired of the foolishness and it's not eating anything in the garage.
Anyone know where to get an OEM dryer? Not the one with the tube kit.
EBAY is a good source for R12
$40 + Free Shipping
Thank you. A friend gave me 5-LBS. I would like to install a stock receiver dryer. However, I cant find one. I have purchased new hose through air products. I just need that receiver dryer.
Stop by my place. I got everything.