77 vette AC system
Thread Starter
Instructor
Joined: Apr 2009
Posts: 175
Likes: 12
From: Jacksonville NC
77 vette AC system
My 77 has factory VIR ac system and I replaced condenser and new compressor. Put two hour vacuum and tested for leak down for 1 hour and all was good. Charged with 134 and only cools down to 60 coming out of vents. I’m thinking VIR sock may need changed but want to know does it have orfice tube also somewhere. Thanks
Race Director
Joined: May 2006
Posts: 18,729
Likes: 2,579
according to this article it uses an orifice tube in the evaporator line
http://www.corvettemagazine.com/tech...ng-conversion/
http://www.corvettemagazine.com/tech...ng-conversion/
Last edited by MelWff; Jun 7, 2018 at 12:34 PM.
Thread Starter
Instructor
Joined: Apr 2009
Posts: 175
Likes: 12
From: Jacksonville NC
according to this article it uses an orifice tube in the evaporator line
http://www.corvettemagazine.com/tech...ng-conversion/
http://www.corvettemagazine.com/tech...ng-conversion/
Melting Slicks
Joined: May 2002
Posts: 2,717
Likes: 121
From: Sulphur LA
St. Jude Donor '05-'06,'11,'13-'14,'16,'18,'19,'24, '25
The systems with the VIR do not have an orifice tube, the VIR is the metering device.
That article was about a conversion,
The 77 didn't come with a VIR that I know of,
Neal
That article was about a conversion,
The 77 didn't come with a VIR that I know of,
Neal
Thread Starter
Instructor
Joined: Apr 2009
Posts: 175
Likes: 12
From: Jacksonville NC
Last edited by edusmc1; Jul 2, 2018 at 07:31 PM.
Instructor
Joined: Oct 2002
Posts: 223
Likes: 20
From: jim thorpe pa
where did you get the kit? I have same problem of 60 to 70 at vent
Instructor
Joined: May 2018
Posts: 248
Likes: 11
A/C Compressor
My 77 has factory VIR ac system and I replaced condenser and new compressor. Put two hour vacuum and tested for leak down for 1 hour and all was good. Charged with 134 and only cools down to 60 coming out of vents. I’m thinking VIR sock may need changed but want to know does it have orfice tube also somewhere. Thanks
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