> Here is my question about this: I have seen dozens of broken VW cases
where
> the rod/piston, whatever fails and explodes through the side of the block.
> Why? What failed? Did the crankshaft flex? Did an oil galley fail and a
part
> seized? Did something get too hot? What could prevent this in hindsight?

Isn't this phenomena more common in the 2.1L WBX where the stretch rod bolts
loosen?  The 1.9 WBX uses a different type of rod bolt, hence lessening the
chance of this type of failure.

Chris.