A/C compressor for 1973 Charger SE

[Branded]

I bought a restored a/c compressor for my 73 Charger SE. It came without the tube (pictured) as it is for R134A. I would like to verify that the tube is not necessary for R134A. Anybody have a clue?

 

[ESOXER]

No idea. Is I'm going back and forth if I should delete or not. Didn't know you needed such a thing.

 

[davek]

when I did my 74 challenger I used all the original parts. Just changed o rings and less freon. I would think you would need it.

 

[Branded]

when I did my 74 challenger I used all the original parts. Just changed o rings and less freon. I would think you would need it.

I asked the wrong question. I've since found out that what I need to know is if the EPR Valve (Evaporator Pressure Regulator) is needed if I'm using R134A?

 

[Dipstick]

If you eliminate the EPR valve you must install a clutch cycling switch, otherwise the evaporator will freeze.

 

[Branded]

If you eliminate the EPR valve you must install a clutch cycling switch, otherwise the evaporator will freeze.

Thanks for the feedback! Now I just have to find one. Any suggestions where I do that?

 

[Dipstick]

A/C Thermostat - Freeze out | Classic Auto Air - Air Conditioning & Heating for 70's & older Cars & Trucks

A/C Thermostat - Freeze out

www.classicautoair.com

The capillary tube is installed into the evaporator core and the switch interrupts to compressor clutch power when the core temperature nears freezing.