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air conditioning stock 1973 help |
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lou j 
AMC Fan 
Joined: Aug/01/2010 Status: Offline Points: 6 |
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 Topic: air conditioning stock 1973 helpPosted: Jun/03/2021 at 9:09am |
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need diagram showing how the valve is installed at the sight glass. is it in the hose, or in the fitting, and which direction it faces
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ramblinrev
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Joined: Dec/28/2008 Location: Wisconsin Status: Offline Points: 11539 |
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Posted: Jun/03/2021 at 9:11am |
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Say more! What year, model?? Sight glass on my '74 Hornet is part of the line to the condensor. I don't think AMC put them near the valves.
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74 Hornet Hatchback X twins (since 1977)
62 American Convertible (still worth the $50 I spent in 1973!) AMCRC #513, AMO #384 70 AMX 360 4-speed (since 1981) |
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304-dude
AMC Addicted 
Joined: Sep/29/2008 Location: Central Illinoi Status: Offline Points: 9082 |
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Posted: Jun/03/2021 at 9:51am |
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The two valves that are part of the sight glass are not needed. They were part of assembly line installation. Everything was kept charged and sealed behind the valves.
Unless you plan on having the unit charged nd stored as separate components for sale or a later install, just gut the fitting of its valves and use it as a coupler. The system does not need it, and it sort of restricts flow of the refrigerant. |
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71 Javelin SST body
390 69 crank, 70 block & heads NASCAR SB2 rods & pistons 78 Jeep TH400 w/ 2.76 Low 50/50 Ford-AMC Suspension 79 F150 rear & 8.8 axles Ford Racing 3.25 gears & 9" /w Detroit locker |
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Heavy 488
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Joined: Apr/27/2019 Location: In the Status: Offline Points: 3553 |
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Posted: Jun/03/2021 at 9:54am |
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Never seen that either. You have 2 service ports at the compressor, expansion valve behind the dash attached to the evaporator and the sight glass is at the line attached to the dryer.
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304-dude
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Joined: Sep/29/2008 Location: Central Illinoi Status: Offline Points: 9082 |
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Posted: Jun/03/2021 at 10:10am |
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Just use two wrenches to remove the fitting from the sight glass end and the dryer.
This is the fitting... I gutted mine as shown in the 2nd picture.  
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71 Javelin SST body
390 69 crank, 70 block & heads NASCAR SB2 rods & pistons 78 Jeep TH400 w/ 2.76 Low 50/50 Ford-AMC Suspension 79 F150 rear & 8.8 axles Ford Racing 3.25 gears & 9" /w Detroit locker |
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