A/C Is working! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

smokekiki · 08-09-2005, 05:20 PM

I just rebuilt the a/c in my 71 suburban.I replaced all the hose,which is about 25' long.I replaced the compresser,and drier.Pulled the condensor off,and the evaperater off the roof and flushed them real good.Put it all back together with new orings,put in 12oz off ester oil,pulled a 4 hour vacuume.When i saw the vac held without dropping,I filled it with 80oz of r134a.I was getting vent temps of 46 and pressures of 325 high and 35 low.Put on a new fan clutch,dropped the vent temp to 40 and pressure to 295 and 28.That was with the ambient temp of 94 degrees.

08-09-2005, 05:20 PM	#1
smokekiki Mike Join Date: Jan 2003 Location: west chester pa Posts: 2,473	A/C Is working! I just rebuilt the a/c in my 71 suburban.I replaced all the hose,which is about 25' long.I replaced the compresser,and drier.Pulled the condensor off,and the evaperater off the roof and flushed them real good.Put it all back together with new orings,put in 12oz off ester oil,pulled a 4 hour vacuume.When i saw the vac held without dropping,I filled it with 80oz of r134a.I was getting vent temps of 46 and pressures of 325 high and 35 low.Put on a new fan clutch,dropped the vent temp to 40 and pressure to 295 and 28.That was with the ambient temp of 94 degrees. __________________ 70'c/10, 71 suburban4x4 402bb, 72suburban 4/6 drop, 72k/5 4x4 blazer 4" lift 35 tires



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.