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Oil needed when recharging after fixxing a leak?

lbquoc on Wed July 23, 2008 10:28 AM User is offline

Year: 1998
Make: Lexus
Model: SC300
Engine Size: 3.0L
Refrigerant Type: R134a
Ambient Temp: 90
Pressure Low: 30
Pressure High: 150
Country of Origin: United States

I'm attempting to fix a leak in my AC system probably due to a bad O ring. When I evacuate the system, if the vacuum holds at 29Hg for 5-10 minutes then I can say that the leak is fixed. Is that correct? Also, do I need to add oil when i recharge the system to replace the oil lost because of the leak?
Thanks

william gunkel on Wed July 23, 2008 11:11 PM User is offlineView users profile

Quote
Originally posted by: lbquoc
I'm attempting to fix a leak in my AC system probably due to a bad O ring. When I evacuate the system, if the vacuum holds at 29Hg for 5-10 minutes then I can say that the leak is fixed. Is that correct? Also, do I need to add oil when i recharge the system to replace the oil lost because of the leak?

Thanks
I would fix the leak, put a couple of ozs of oil in the new dryer and evacuate the system for 30 min. and as you stated make sure it holds 29-30Hg for ten min.


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1981 Merdedes Benz 300SD 1991 Jeep Cherokee Limited Edition

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