Spun bearing

Any idea what a spun main bearing would sound like in a VR?

hopefully it would be round

Spun big end bearings will give a knocking sound that will speed up and slow down with rpm.

Whereas a buggered mains bearing will give more of a continous rumble coupled with low oil pressure if all of them are gone.

Hmmm, the Golf has a slight knocking sound at idle, so I'm now a little worried

Would the knocking sound be particularly loud? Would it gradually get worse?

Hot or cold? Does the sound go if you depress the clutch?

Need to outrule the other ancills first too and tappets etc. I had a terrible rattle / knocking once and it was nothing more than a knackered serpentine belt!

My VR makes a funny noise that speeds up and slows down with revs, kinda tap... tap.... wait for a while.... tap... tap... I think it's something to do with the timing chain though.