expansion valve question

[fireguyfire]

Hey guys; just received a new expansion valve for my 68 383 A/C car and I want to install it.
My new one has 2 small copper tubes coming off it; one that has a threaded connector end on it (I know where that goes) and another tube that is about 18" long and just ends; any idea where this tube terminates or how to terminate it?

[A383Wing]

gets wrapped around one of the AC lines..look at your car and see where it is

[fireguyfire]

I didnt take the car apart and the factory shop manual doesnt show it that I can see; any chance of a photo showing where the 2nd tube wraps?

[cdr]

the low side should have a hole close to where the threaded tube goes on, it should just push into it.

[A383Wing]

it probably is attached to the side of the high side hose wrapped in that factory gooey stuff....it's a thermocouple capillary tube that senses freezing of the AC line and closes the expansion valve to aid in un-freezing the line

[fireguyfire]

That makes sense 383 as it did come with a roll of black goopy stuff. One final question (I hate to be a pain) is doI wrap this around the steel part of that hose, the rubber part, or both? Then I assume I tape over the wrapped part with this goopy black tape.

[A383Wing]

it goes over the metal part of hose...when metal line freezes, then the tube tells the expansion valve to close blocking freon flow. The rubber line will not freeze