AC Help
Thread Starter
Intermediate
Joined: Dec 2010
Posts: 41
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AC Help
I have an 81 that I am replacing all ac components. (134a)
Condencer, compressor, accumulator, evaporator and all lines. all are brand new. question is how much oil do I put into each component. and what will be the total amount of oil needed.
Tahnks in advance
Dave
Condencer, compressor, accumulator, evaporator and all lines. all are brand new. question is how much oil do I put into each component. and what will be the total amount of oil needed.
Tahnks in advance
Dave
Le Mans Master
Joined: Sep 2004
Posts: 5,116
Likes: 5
From: Livonia MI
Speak with the component manufacturer, as the compressor is normally pre-charged with the proper oil amount. If you do need more, it's normally charged into the running system suction line, not into each individual component.
Last edited by Vette5.5; Dec 11, 2010 at 08:08 PM.
Le Mans Master
Joined: Oct 2006
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From: Gladstone MO
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Melting Slicks
Joined: Oct 2006
Posts: 2,417
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From: Texas
when i replaced my entire system, new compressor, the ac shop gave me an 8oz bottle of oil (for 134a) and said to pour all of it directly into the compressor. been doing fine, that was summer of 09.
Thread Starter
Intermediate
Joined: Dec 2010
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What compressor do you have? is it a R4? The kit I bought gave me 8oz of oil but no indication of how much to use and where to put it in.
Dave
Le Mans Master
Joined: Sep 2004
Posts: 5,116
Likes: 5
From: Livonia MI
Once again, I'd check with the kit manufacturer, as the compressor may already have some oil in it. If the 8oz is just a normal bottle, then probably just pour it in the larger compressor suction port. If a 1/4" flare injector bottle, then ment to charge a running system. If your kit has an OEM Harrison A4 compressor, then maybe look for a more modern compressor, as the shaft seal's have really improved over the year's.
Melting Slicks
Joined: Oct 2006
Posts: 2,417
Likes: 336
From: Texas
"What compressor do you have? is it a R4? The kit I bought gave me 8oz of oil but no indication of how much to use and where to put it in"
i have the round flat pancake type R4, same as an 81 model.
i poured it in the suction port ( all of it). Instruction given to me by the automotive AC supply shop i purchased it at.
i have the round flat pancake type R4, same as an 81 model.
i poured it in the suction port ( all of it). Instruction given to me by the automotive AC supply shop i purchased it at.
Burning Brakes
Joined: Jun 2008
Posts: 1,086
Likes: 1
From: Michigan
The R4 compressor uses 5 oz of oil. My NEW Delco compressor only came with a small amount of oil to lube the assembly and had a big sticker on the compressor warning that it was shipped with no oil.
To be safe you should drain the oil in the new compressor into a cup to measure how much came out. Then add the 5 oz. directly the the compressor. Too much oil is as bad as too little. If you add a little extra oil to the system the excess will accumulate in the bottom of the accumulator/dryer with no harm done as long as it isn't way too much oil.
To be safe you should drain the oil in the new compressor into a cup to measure how much came out. Then add the 5 oz. directly the the compressor. Too much oil is as bad as too little. If you add a little extra oil to the system the excess will accumulate in the bottom of the accumulator/dryer with no harm done as long as it isn't way too much oil.
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Racer
Joined: Jun 2006
Posts: 476
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From: Easton PA
in the gm shop book it will tell you, a few ounces for condensor, a few for accumulator, a few for evaporator, and few for compressor unless it was shipped with oil in it witch it would state. the oil will add up with replacement of all components
