Hey all,

I have a 1978 280z and am trying to install a fan regulator. One of the wires has a large metal "screw" (I'm not a 100% sure what it's called, but it looks like the things that "plug" up the Low and High pressure ports on the A/C compressor.)

The "screw" says to attach it to the A/C Clutch, where do I find that?

I'm pretty sure that is my A/C compressor, and it has to either go in one of those two ports? I've seen a few schematics online and anything referring to the word "clutch" is shown to be at the front of the A/C Compressor.

Figured I ask, before I start fiddling with it.

Thanks!

The clutch is on the front of the compressor. Where the v-belt and it's pulley are... The clutch is electrically operated - one wire - usually blue on z-cars.

The ports you're referring to are the high and low pressure refrigerant ports (and have little-to-nothing to do with the clutch).