Originally Posted by Craig

I don't know if the end play actually caused the pump failure, but there was too much end play and the bushing was well worn. My indy replaced it in the car, a giant PITA from what I saw. To get the timing chain out of the way you have to move the cain guide, which requires removing a VERY tight pin that is pressed into the block. My indy spent the better part of two days working on mine.