Vanning.com logo
Boxdin
Site Navigation


Advertisements
Recent Posts
1976 Dodge B200
by MoJoeCustoms. December 10th 2019 7:32 pm
Headlight doors/bezels for 81 G20
by frscke1. December 10th 2019 5:51 pm
What Did You do To your Van Today?
by Scrojira. December 10th 2019 2:55 pm
I'm having a hell of a time changing my valve cover gaskets
by GeneralBob. December 10th 2019 9:39 am
Oil pan gasket change
by GeneralBob. December 10th 2019 9:21 am
New folks
by RockinRoger. December 10th 2019 9:10 am
2020 new chevy van
by newkirkinc1. December 10th 2019 8:21 am
Well i pulled the trigger
by NEmery. December 10th 2019 8:04 am
Dodge "Travel Seats" anyone seen them?
by NEmery. December 10th 2019 7:55 am
Jack Durrand "Demon" J
by newkirkinc1. December 09th 2019 2:36 pm
Featured Links
Vanning.Com is a an authorized Amsoil Dealer


Previous Thread
Next Thread
Print Thread
Rate Thread
1977 Chevy AC rebuild #754192
November 16th 2019 9:32 pm
November 16th 2019 9:32 pm
Joined: Nov 2019
Posts: 29
Sarasota Florida
G
GeneralBob Offline OP
newbie
GeneralBob  Offline OP
newbie
G
Joined: Nov 2019
Posts: 29
Sarasota Florida
I have rebuilt the entire ac system from the firewall to the compressor , I have been told to replace the orafice tube and it’s suppose to be in the ac line from the condenser to the evaporator! I have looked for hours for the orafice tube location , took apart every fitting to put new o rings in and still have not found the orafice location ! I am wondering if it does not have one and instead has a exspansion valve inside the cab with the evaporater , no one can give me any info on this , any help out there ?

Re: 1977 Chevy AC rebuild [Re: GeneralBob] #754203
November 17th 2019 7:59 am
November 17th 2019 7:59 am
Joined: Nov 2019
Posts: 29
Sarasota Florida
G
GeneralBob Offline OP
newbie
GeneralBob  Offline OP
newbie
G
Joined: Nov 2019
Posts: 29
Sarasota Florida
Just found a website that shows the system , it don’t have a orafice tube , it has a exspansion valve , why would the auto parts stores not just tell you that verses selling you a orafice tube that don’t fit in the system ?

Re: 1977 Chevy AC rebuild [Re: GeneralBob] #754252
November 18th 2019 8:57 pm
November 18th 2019 8:57 pm
Joined: Apr 2007
Posts: 16
Hurst, TX
1
1983G20Van Offline
stranger
1983G20Van  Offline
stranger
1
Joined: Apr 2007
Posts: 16
Hurst, TX
You probably have a dealer add-on a/c unit. I have worked on a 76 or 78 G20 Van and it had an orifice tube. Right where the metal hard line liquid line runs into the evaporator inlet. The evaporator on a van with stock air is under the hood.

Last edited by 1983G20Van; November 18th 2019 8:57 pm.

1983 G20 Conversion Van, 350 TPI, Reed Hydraulic Roller cam, Ported 906 Vortec, Edelbrock 3817 TPI-Vortec Base, Doug Thorley Tri-Ys, Dual 2 1/2" exhaust, Speed Density 7730 ECM tuned by ME, 700r4 by ME, Stock 1,600 rpm converter, Rebuilt Stock 10 bolt with posi by ME, 3.08 gears, 358 RWHP @ 5,200, 384 RWTQ @ 3,400, 14.66 @ 95.43 w 2.28s 60'

Moderated by  Astro 

Donate


Upcoming Events
discovery
Who's Online Now
0 registered members (), 1 guest and 2 spiders.
Key: Admin, Global Mod, Mod
Newest Members
CLMoss, BrunoVDB, deVanaiv, Meatloaf, DeniseP
11247 Registered Users
Top Posters(30 Days)
frscke1 32
kursed 24
LOOKSLO 15
Forum Statistics
Forums68
Topics36,640
Posts525,986
Members11,247
Most Online177
May 8th, 2013

Powered by UBB.threads™ PHP Forum Software 7.6.1.1