In a message dated 2/6/03 10:39:23 PM, DBAKER5@KC.RR.COM writes:

<< Also, try not to pull the cylinder liners out past the

piston rings. >>

I've see this prohibition stated again and again on this list.  I take it to
mean that these head seals are to be replaced without renewing the O-ring at
the base of the cylinder sleeve.  How foolish.  We all know that anytime an
O-ring is disturbed, it should be replaced, especially if it has seen such
severe duty at such a critical task.  Even if it were possible to remove a
head without dislodging the cylinder sleeve from its seat, the bottom O-ring
will still have been disturbed because it will have been relieved of its
preload.

George