Vanning.com logo
Boxdin
Site Navigation


Advertisements
Recent Posts
Looking for a new ride-Astro or Safari ?
by NEmery. July 09th 2020 9:58 am
Custom Early Dodge Van Utility Trailer/Central NJ
by billybob. July 09th 2020 1:03 am
1982 G20 build
by Charlie99909. July 08th 2020 11:43 pm
What Did You do To your Van Today?
by samhain. July 08th 2020 8:11 pm
Design art of my VAN
by Customatic1969. July 08th 2020 3:04 pm
1985 RAM B250 Royal Van - Project
by Slartidbartfast. July 08th 2020 12:15 pm
VIRAL VAN-IN
by newkirkinc1. July 08th 2020 7:24 am
Parting 89 G20
by No1rascal. July 07th 2020 11:40 pm
Tuner4life's 1985 Chevy G20 4 Speed Build Thread
by newkirkinc1. July 07th 2020 7:48 pm
New from CT
by newkirkinc1. July 07th 2020 7:47 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 10:32 pm
November 16th 2019 10:32 pm
Joined: Nov 2019
Posts: 30
Sarasota Florida
G
GeneralBob Offline OP
newbie
GeneralBob  Offline OP
newbie
G
Joined: Nov 2019
Posts: 30
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 8:59 am
November 17th 2019 8:59 am
Joined: Nov 2019
Posts: 30
Sarasota Florida
G
GeneralBob Offline OP
newbie
GeneralBob  Offline OP
newbie
G
Joined: Nov 2019
Posts: 30
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 9:57 pm
November 18th 2019 9:57 pm
Joined: Apr 2007
Posts: 17
Hurst, TX
1
1983G20Van Offline
stranger
1983G20Van  Offline
stranger
1
Joined: Apr 2007
Posts: 17
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 9:57 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
1 registered members (KeVan), 11 guests, and 11 spiders.
Key: Admin, Global Mod, Mod
Newest Members
MaddDog72, LanPartyGamers, Tex66, gtech0971, Chalkbus
11502 Registered Users
Top Posters(30 Days)
SDMickey 208
NateB 101
LOOKSLO 43
Forum Statistics
Forums68
Topics37,686
Posts533,868
Members11,502
Most Online177
May 8th, 2013

Powered by UBB.threads™ PHP Forum Software 7.6.1.1