Originally Posted by oznog05
I am getting the timing belt change on the hilux and the machanic thinks its a good idea to also change the water pump as well.
He's right you know. I replaced a timing belt in my last rig myself and 2 weeks later, the water pump went. Pulled out the shop manual again and found it said "to replace the water pump, first remove the timing belt". I was spewing as it turned out the water punp only cost me $70. I thought they were $200 or so.
I think the extra tension of a new timing belt can be the last straw for an old water pump and I have heard they often go soon after a new timing belt goes on. Well worth doing while it is all apart as you will only b epaying for parts if you do it now.