This particular problem is with the Peacock in my shop. When the mech clutch disengages and plays the record, sometimes it "ticks" from the pin not coming far enough away from the.. (I should have looked up the real part name) but it ticks as it passes the slots in the "clutch plate". It did have a problem with it disengaging too soon but I adjusted it and it now disengages when the turntable lift is at its peak. I had tried adjusting it a little each direction but still it sometimes ticks.