Mornin peeps, yesterday I noticed a rattling sound comin from the engine, then when havin a look in the engine bay I noticed wat I think is a pulley , it has abelt going round it, the pulley has abit of play in it, I have a vid on YouTube it's only about 14 seconds long , please could I have some help on what to do asap as this is my every day car and will be lost with out it. Oh and it's a 95 mk3 golf vr6.