I have had a nagging feeling about my vertical tracking angle, it was
only slightly out, But I had to adjust it, the allen key holding the
arm was so tight that when it did loosen it the whole sub chassis of
the turntable clunked with I suspect the underside of the deck. After
adjusting the height of which I am now very pleased, I noticed that the
motor makes a clicking noise, if I remove the belt it still makes the
clicking noise, if I push down a few times on the spring loaded pulley
at the top of the motor then turn it on again the clicking sometimes
goes away, but it always comes back when the drive belt is attached.

Any ideas please?