hi guys,i'm in need of some help and advice. for the past few months there has been a noise coming from the pulley area on my mk2 2.3 2001 galaxy so yesterday i stated to change the idler pulley as i thought that was causing the noise,as i took the tension of the aux drive belt to change the pulley water started to drip on the ground so i checked the water pump pulley and it has a bit of play in it,well a lot of play in it you can move the pulley from side to side quite a bit,anyway i fitted the new idler pulley and aux belt and the water leak stopped,now how big of a job is it to do and can a new water pump be fitted without taking the engine out and is there a how to guide thanks gazza