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1996 SL A/C Capacity?
Does anyone have a factory service manual or know off hand the R134
refrigerant and associated lubricant capacity for a 1996 SL? I just replaced a damaged condenser on my son's SL, but did not disrupt anything else in the system. There was clearly oil still left in the system so I'm guessing I will now need to add about 20-30% of the stated value to replace what was in the condenser or lost to the leak and bring it back to proper level. At this point I am planning to draw down a vacuum and leave it overnight to make sure the system is no longer leaking. I then plan to add the full R134 load and about 25% of the rated oil needed. Can anyone supply the capacity of the system and/or any suggestions on the amount of oil to add? Thanks in advance. Bob |
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1996 SL A/C Capacity?
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#4
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1996 SL A/C Capacity?
Bob Shuman wrote:
> To keep the costs down, we are using a salvaged (junk yard) condenser. I > purchased 2 new O-rings at the Saturn dealer and had sealed both of the > fittings after removing the old condenser to minimize water vapor entry into > the system. Based on the actions taken, I'm going to try to get away with > not replacing the receiver/drier and see how it goes. If the salvaged condenser has been exposed to the elements for any length of time, I'd flush it. You can buy a flush kit from any auto parts store. You don't know what kind of crap was in there...sealants/incompatible oil/water/etc. Given the amount of labor involved, I'm not sure I'd even waste time with a used part here, but that's water under the bridge. Re-using the old receiver/drier is a serious mistake. The desiccant inside will VERY quickly become contaminated with water vapor even if exposed to the outside air for short periods of time. I'd stop now, replace that, then keep going. You'll be kicking yourself later when you've got to do the job again. > For others who may be reading this thread in the future, to summarize, the > capacity of the system is: > > 24 ounces (1.5 lbs) R134a > 6.7 ounces (200cc) of PAG lubricant > > I also received this same info in a reply on the Saturn Fans forum. (I > posted this question in both places to try to get a quick answer.) I'm guessing you don't have any way to exactly measure the amount of R134a you're adding to the system. As a rule of thumb, follow this chart I've linked to below. At a given ambient temperature, with the A/C system on high, your pressure readings should be in the range of those on the chart: http://www.ackits.com/index.cfm?fuseaction=Chart There is also a wealth of other information for the DIYer there. Working around an auto A/C system can be quite dangerous if you're not familiar with procedures as the high side of the system is under a LOT of pressure. Be careful. Cheers, |
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1996 SL A/C Capacity?
> If the salvaged condenser has been exposed to the elements for any
> length of time, I'd flush it. You can buy a flush kit from any auto > parts store. You don't know what kind of crap was in > there...sealants/incompatible oil/water/etc. Given the amount of labor > involved, I'm not sure I'd even waste time with a used part here, but > that's water under the bridge. Re-using the old receiver/drier is a > serious mistake. The desiccant inside will VERY quickly become > contaminated with water vapor even if exposed to the outside air for > short periods of time. I'd stop now, replace that, then keep going. > You'll be kicking yourself later when you've got to do the job again. Agreed on flushing. No telling what was in the system of that old condenser. Also GM says after X number of years to replace the drier during servicing. Yours is well past that age. > > 24 ounces (1.5 lbs) R134a > > 6.7 ounces (200cc) of PAG lubricant I think with the zexel pump the system holds 6 ounces. > > http://www.ackits.com/index.cfm?fuseaction=Chart They also have a informative forum. > There is also a wealth of other information for the DIYer there. > Working around an auto A/C system can be quite dangerous if you're not > familiar with procedures as the high side of the system is under a LOT > of pressure. Be careful. > > Cheers, All I can say is read read read, ask questions, and read some more. http://www.ase.com/Template.cfm?Sect...of_CFC_Booklet |
#6
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1996 SL A/C Capacity?
> > > 24 ounces (1.5 lbs) R134a > > > 6.7 ounces (200cc) of PAG lubricant > > I think with the zexel pump the system holds 6 ounces. Oh wait... You might have a DKV11A, not a Zexel that year. You will want to confirm this of course... |
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