In article ,
Greg Hopp wrote:
On preflight I noticed a little oil seeping around the bolt on the
pilot's front cylinder (Superior Milleniums).

A guy across the hanger row from me lost a cylinder in flight on a
relatively new (60-70 hour) engine. Looking at the studs it appeared
that one bolt had been lose and backed off, allowing the other 3 to
shear off. I'd be looking at what kind of damage might have happened
to the adjacent studs while the bolt was loose.

--
Ben Jackson

http://www.ben.com/