A/c 1981
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Joined: Nov 2003
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From: Peabody Ma.
A/c 1981
I have slowly gathered up the parts to fix my A/C. new rec. drier,condensor,good used compressor,134a kit,and a orifice tube.Where is it and what does it do? Also I know the A/C controls need vacum where could I possibly find the old lines on the car?[firewall] am I missing anythig else? any thoughts?
Melting Slicks
Joined: Mar 2006
Posts: 2,465
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From: Orange Park Fl
An assembly manual should show you how everything went together originally (vacuum lines etc.). They can be picked up for around $25 and are a must have for working on your own car. The orfice tube is a metering device in the system. Since you are using 134a, throw away the $3 orfice tube and get a variable orfice valve (VOV) from NAPA for about $20. God bless, Sensei
P.S. Good used compressor? Don't bet on it!
P.S. Good used compressor? Don't bet on it!
Le Mans Master
Joined: Jan 2006
Posts: 9,192
Likes: 27
From: Boca Raton Florida
The orafice tube is as A1 says a metering device. What it does is provide the pressure drop that creates the cooling effect need going into the condensor. When you pressurise a liquid or gas it heats up and when you run it thru a restriction like an orifice tube it shills off rapidly on the low pressure side. Weird but it works.
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Pro
Joined: Nov 2003
Posts: 692
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From: Peabody Ma.
Originally Posted by a1sensei
An assembly manual should show you how everything went together originally (vacuum lines etc.). They can be picked up for around $25 and are a must have for working on your own car. The orfice tube is a metering device in the system. Since you are using 134a, throw away the $3 orfice tube and get a variable orfice valve (VOV) from NAPA for about $20. God bless, Sensei
P.S. Good used compressor? Don't bet on it!
P.S. Good used compressor? Don't bet on it!
Le Mans Master
Joined: Jan 2006
Posts: 9,192
Likes: 27
From: Boca Raton Florida
