C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

1984 ac

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Old Jun 5, 2021 | 06:03 PM
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From: If your not the lead dog the view never changes Boise, Id
Default 1984 ac

My 85 has sat for a long while (before I got it). I was told when it was parked the AC worked great but by the time I got to it, not so much. I checked the system out and it needs all new hoses, the rubber ones connected to the manifold as well as the accumulator to evaporator hose. I ordered the hoses.
will I need to add oil to the system? If so, how can I tell how much? I do have a case of R 12 automotive Freon.
thanx

just saw I fat fingered 84 instead of 85 in the title. It is an 85.

Last edited by RockyL32; Jun 5, 2021 at 06:04 PM.
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Old Jun 6, 2021 | 06:54 PM
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As long as you're not replacing any component....No. Too much oil is worse than too little. Just lubricate those seals.
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Old Jun 6, 2021 | 07:16 PM
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Originally Posted by RockyL32
My 85 has sat for a long while (before I got it). I was told when it was parked the AC worked great but by the time I got to it, not so much. I checked the system out and it needs all new hoses, the rubber ones connected to the manifold as well as the accumulator to evaporator hose. I ordered the hoses.
will I need to add oil to the system? If so, how can I tell how much? I do have a case of R 12 automotive Freon.
thanx

just saw I fat fingered 84 instead of 85 in the title. It is an 85.
Your car takes 2.75 pounds of freon. When I filled mine it was a little more than 2 and a half cans. Then I used the pressure gauges and an r12 ambient temp/pressure chart to make minor adjustments.
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Old Jun 7, 2021 | 11:53 AM
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Thank you for the help!!
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