Morley EVO-1 oil can delay for repair

Not working. Passes signal but the effect doesn't work. The guy I got it from said his tech tried to get it working and couldn't. I have too many projects and am just passing it on. It's missing some screws and bolts but I'm including everything I was given.  It's also missing the top cover with the morley logo on it. Pretty dirty but the switches and pots aren't dirty.

The motor spins perfectly and consistently. Also the inside of the can has been cleaned and it hasn't been run dry by either myself or the previous owner (which is very bad for these). It also has a brand new belt on the motor.

Please understand you are buying an absolute project and no returns will be accepted. Super cool effect when it's working. I understand these units are more of a drunken vibrato than a delay.