This all has me wondering again, would it be a good
idea on Wasserboxers to occasionally, say every 15,000
retorque the head bolts like you would on an air
cooled?  Seems like an ounce of prevention and a few
valve cover gaskets would certainly be worth the chore,
but can you get to the uppers without pulling the engine?
It's been a while since I've worked on a Wasserboxer and
don't remember but since there is no cooling tin and it
pretty much just sits ther in the open, seems like an easy
enough thing to do.

John Anderson
ja@coe.wvu.edu