I believe that an extra idler can be used to avoid the incorrect of rotation of the water pump on a blacktop zetec when the aircon and PAS has been removed but i want to keep it pretty minimal. So i plan on just putting the alternate water pump in instead...buuuut. Which one is needed? I have also read that the pump only needs changing when a silver top is used so i'm not sure what to believe?
Thanks in advance guys!
Antony.