Disc won't spin

[suggy]

Hi all, new to PS2 (Xbox man my self)
but i have a problem.
A mate of mine has given me a PS2 to fix?
It starts fine but wont load any games?
Hade it in bits from what i can tell the disk wont spin?
When you put a disc in all it turns is about 2mm?

Can any one tell me what as gone?

PS he striped it down because it took along time to read discs (thort it was muckey lens)

Any help would be appreciated

Thanks Suggy