How to remove oil pressure sender?

[Ruby Fan]

On my '85, on the back right side of the engine, between spark plugs, is the oil pressure sender(?). There is a wire attached, (green). How to remove this wire? The wire is attached to a plastic 'cap' on top of the sender. Which is the best way to remove it ( push-pull-twist?). I believe I have a slight leak at this sender, and want to take it off, apply teflon tape over the threads, then put it back. Do you think this is the way to go, or are the threads some sort of ground? (they look copper color). I seem to get an oil smell going when stopped and this thing looks like it may be the answer. Thanks

 

[Ruby Fan]

Thanks vetteoz!!

 

[Schrade]

On an '85, you probably have leaking valve covers. Dripping oil hits the exit pipes, cooks off, no evidence.

Leakage at the sender will be evident.

On a '94, the sending unit between holes # 6, 8, is the Coolant Temp Sensor, I'm pretty sure...