AC Orifice Tube - The 1947 - Present Chevrolet & GMC Truck Message Board Network

70GMCer · 06-22-2018, 11:13 AM

I am starting to get together the parts needed to bring back to life the AC in my 83.

It looks like the system had already been converted to 134 as there are the correct manifold connectors present, but I'm going to replace the orifice tube.

I need to know if the orifice tube for the R134 is the same as R12.

If not, anyone have the part number of the tube I would need?

I'm going to be replacing the dryer, hoses, evap unit & condenser as well as installing a Sanden 508 type compressor.

06-22-2018, 11:13 AM	#1
70GMCer Senior Member Join Date: Apr 2005 Location: Joppa, Maryland Posts: 4,408	AC Orifice Tube I am starting to get together the parts needed to bring back to life the AC in my 83. It looks like the system had already been converted to 134 as there are the correct manifold connectors present, but I'm going to replace the orifice tube. I need to know if the orifice tube for the R134 is the same as R12. If not, anyone have the part number of the tube I would need? I'm going to be replacing the dryer, hoses, evap unit & condenser as well as installing a Sanden 508 type compressor. __________________ 1997 GMC Sierra Ext 1965 Mustang



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