Going to rebuild 6-12 stock m715,230 tornado water pumps very soon. i,ll be posting some pictures along the way . first will be of a completely broken down water pump so everybody can see what the guts look like. i have them already broken down now and the components being cleaned as i write this. as you all know if you have a water pump on these engines go bad it 99% of the time takes out your radiator and with the price of copper now it makes it a very pricey failur. with the weight of the massive 4 groove pulley combined with 3 fan belts its extreamly hard on the bearing. always remember keep your belts adjusted a little on the loose side, you should be able to move the belt 1/2-3/4" up and down. and all 3 belts should be a matched set. more to come very soon.