Hi there,
If the timing belt failed it will not affect the water pump, it just won't drive it that's all, I feel that the water pump bearing has failed and collapsed, with this, the pump drive pulley will be miss aligned with the idler, cam & crankshaft gears/ pulleys and the belt has walked off or failed as a result.
Mark (mhpautos)
Wednesday, September 5th, 2007 AT 7:22 PM