my DIY engine rebuild

[Jamesp]

Originally Posted by kjc2050

Isn't that a picture of the block side of the WP right above your post?

Looks like I must have missed it multiple times as looking back I don't see it. Metal water pump impellers can machine the block which would be visible in the block after the water pump is removed. I did not find that shot in the pictures provided. If the block was machined by a metal impeller, metal in the coolant passages could be expected. This could obstruct the coolant flow resulting in specific areas of the engine overheating. In any event to me, finding FOD in the coolant passages indicates a complete tear down to clean out the coolant galleys. That's a big deal, but allows building the engine up from the crank out. My engine had 120k on it, and the bearings were shot with dealer service intervals / Mobile 1 oil changes as recommended by Porsche. The timing chains off the IMS can also be changed if the block is split which is a benefit.

[kjc2050]

Originally Posted by Jamesp

Looks like I must have missed it multiple times as looking back I don't see it. Metal water pump impellers can machine the block which would be visible in the block after the water pump is removed. I did not find that shot in the pictures provided.

Sorry, this is a matter of semantics. I interpreted "what does the block side of the water pump look like" as "what does the side of the water pump that mates to the block look like," but what you actually meant was "what does the block look like where the water pump mounts to it?" :-)