Tele neck pickup hums when I touch it

[nlopez]

Hi Gang,
I just bought a Tele and got two SD 5-2s from two different sellers. The neck pickup has a RWP label on it.
I installed them per diagram and notice two things:

1) there is NO hum cancelling in the middle position
2) when I touch the neck pickup cover, I get a loud hum/buzz

I am wondering if someone "disconnected" the gounding from the pickup cover to the pickup. Would that do it? If so, how do I ground them back again?
Is there more to the story?

Thanks
Nick

 

[Rosewood]

The cover should be grounded on the bottom on one of the tabs, take it out and see if the ground wire is soldered to the cover.

 

[nlopez]

thanks!