How much PAG-150?

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So in the process of installing the compressor, but can't find where it lists the amount of oil that needs to go into the suction side of the compressor. ANyone know offhand or know?
 
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Originally Posted By: Nick R
So in the process of installing the compressor, but can't find where it lists the amount of oil that needs to go into the suction side of the compressor. ANyone know offhand or know?

IF that's the only thing changed? dump the oil from the old compressor measure it and add the same amount back to the new.

don't add back what trav posted(8oz) that's for a cleaned/flushed dry system your not working with that you have oil in the system you only need to replace what you are loosing(new comp)
 
Ah. I talked to chevrolet support they contacted their service center and they said 1.5-2oz so that's what I added.
 
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Originally Posted By: Nick R
Ah. I talked to chevrolet support they contacted their service center and they said 1.5-2oz so that's what I added.

You always measure amounts from the component you remove, if not you could be adding back more OR or not enough.

that's the true way just FYI.
 
Originally Posted By: daman
don't add back what trav posted(8oz) that's for a cleaned/flushed dry system your not working with that you have oil in the system you only need to replace what you are loosing(new comp)


Please read note a-c on what i posted.I try not to post misinformation.
 
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Originally Posted By: Trav
Originally Posted By: daman
don't add back what trav posted(8oz) that's for a cleaned/flushed dry system your not working with that you have oil in the system you only need to replace what you are loosing(new comp)


Please read note c on what i posted.I try not to post misinformation.

I did and no offense but it's too vague of info,someone could easily miss interpret it.
 
What Trav posted is spot on and the factory recommend method. It's pretty simple really and assures you don't under or overfill the system.
 
Originally Posted By: mechanicx
What Trav posted is spot on and the factory recommend method. It's pretty simple really and assures you don't under or overfill the system.

Ok then so say some one at one point in time added a extra oz here or there with out knowing how much is in the system presently,ok then one comes along like the OP and changes a component and looks at the chart, ok yea up 4 oz ok cool i'll add 4 ozs,boom over filled with oil.

factory recommend IS what you go by when working with new system empty or flushed system of oil, working with a unknown system like the OP was you reclaim,measure and replace only that amount.

read what "1." states.
 
No that procdedure tells you what to add for each component replaced, not to just add 4 0z. It tells you to drain the parts like compressor and measure. For the receiver-drier the oil gets asorbed and that's what will typically be left behind-3.5 oz. The system will not be any more overfilled than it was following the procedure.
 
Usually on a V5 compressor nearly all the oil drained from the old compressor and added to the new is in the actual compressor crankcase rather than out the ports.

The bolt on the side of the comp. that faces toward the radiator when installed is how to drain or add oil to/from there.

I assume the reason to add the 2oz. if less than 1oz. is drained from the comp. is likely becuase many V5s develop "belly leak" at the case halves, usually leaking a bit of oil as well as refrigerant from that crankcase area.
 
Originally Posted By: moklock
Usually on a V5 compressor nearly all the oil drained from the old compressor and added to the new is in the actual compressor crankcase rather than out the ports.

The bolt on the side of the comp. that faces toward the radiator when installed is how to drain or add oil to/from there.

I assume the reason to add the 2oz. if less than 1oz. is drained from the comp. is likely becuase many V5s develop "belly leak" at the case halves, usually leaking a bit of oil as well as refrigerant from that crankcase area.


Oh. Swell. Now we gotta pull the thing back out again. xD
 
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Originally Posted By: Nick R


Oh. Swell. Now we gotta pull the thing back out again. xD


As long as the compressor has been installed with some oil in it and your are only adding an ounce, you can put it in at other points. I would add it to the accumulator.
 
I added 2 oz to the crankcase, via a syringe, which allowed me to not have to drop it (woohoo).

Edit Oh, and if you thought gear oil smelled bad, then you haven't smelled used compressor oil. GAG.
 
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The compressor is not lubricated by the oil in the sump, so adding the extra oil there didn't help anything. It is only lubricated by oil in suspension in the returning refrigerant, therefore the recommendation to put it anywhere BUT the compressor.
 
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