Hi,
Newb here, so any advice will be gratefully received.
Just bought a 16v (and my 1st golf) from a previous member on here.
Was giving it a much needed service earlier and one of the items was to change the squeeky PAS belt.
I cant seem to slacken the belt off, ive loosened off any bolts that i can see would hold it in place and then tried to wind it back using the adjuster gear. So advice on this procedure please?
Also in trying to do so and therefore getting impatient i gave the front of the pump a slight smack with a wooden mallet thinking i wouldnt damage it... and ive hit what looks like a ball-bearing in the casing therefore causing a leak from the pump. Can anyone tell me what this is there for and if youd think its fixable or if i need to get a replacement pump due to my stupidity

?
Many thanks in advance