On Fri, 12 Aug 2005 20:32:15 +0100, John Greystrong
wrote:

I've never encountered any problems and would be very surprised
if I did.

Surprised ? You'd be fecking terrified!

Some time ago there was a thread on splitting these calipers (to remove
stuck pistons, AFAIR) and I remember being severely flamed for having
the temerity to even suggest that there were any "user serviceable parts
inside". Putting brake components back together with recycled rubber
seals that are probably older than the driver doesn't strike me as the
smartest idea.