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#1
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Should I add oil to R134a?
I flushed the entire system, and installed a brand new compressor. The
Haynes manual says I should pour 2oz of oil each into the evaporator and condensor before evacuating the system. However, my R134a bottle says that it has oil already mixed in it. My question is, should I add this oil, or should I assume that the oil in the refrigirent is enough? I assume that I still need to pour some oil into the compressor ports to keep it lubricated during startup. |
#2
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#4
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> wrote in message ups.com... > As you suggested I returned the cans and bought regular R134a cans. > > Yes I did replace the dryer, but I could not find the expansion device. > This is a 1990 Geo Metro. It does not use an orifice, and I can't find > anything else on the low pressure line. I am guessing that the > expansion valve must be inside the evaporator. The only way to get at > it would be to remove the evaporator, which I am not ready to do. I > measured the exact amount of ester oil, and poured some into the > compressor and some into the condensor. I sealed it up and ran a vacuum > pump for 2 hours. The vacuum stayed at 30"Hg for more than six hours > after the pump was turned off. I am about to recharge the system today. > I will let you know the outcome. > You are a fool if you don't even check the orifice tube/expansion valve before charging the system. |
#5
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Bruce Chang wrote: > You are a fool if you don't even check the orifice tube/expansion valve > before charging the system. So Bruce, how do YOU check the expansion valve when you charge a system like this? Better yet, how do YOU check the orifice tube on a receiver dryer system? Toyota MDT in MO |
#6
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"Comboverfish" > wrote in message oups.com... > > > Bruce Chang wrote: > >> You are a fool if you don't even check the orifice tube/expansion valve >> before charging the system. > > So Bruce, how do YOU check the expansion valve when you charge a system > like this? Better yet, how do YOU check the orifice tube on a receiver > dryer system? > > Toyota MDT in MO > I don't know this system and apparently he doesn't either. He assumed it had one and he wasn't going to check it. In response to your question, I would pull the orifice tube and check to make sure it has no debris in it at the very least but I'd jsut replace orifice tube. It's chump change in comparison to having redo everything again. -Bruce |
#7
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