Rickresource Rickenbacker Forum

I was wondering how I go about checking the truss rods on my 72 4001 ric bass, the fret board is separating from the neck.
The separation is about 4 inch's long. Should I remove the fretboard completely or just glue it back. I think I should remove the fretboard to get a better look at the truss ...

I am brand new to this forum and wanted to weigh in on this subject. First I am not a bass player but happen to have a basket case ric so I need to pick all of your brains. It seems like a great forum thanks.
I would like to comment that "Manta's" reference to the carving on one of the guitars was ...