engine core plugs.

["Bowen, Patrick A RP2" <PABowen@sar.med.navy.mil>]

How do you tell, or know if you need to replace the engine core plugs.  I
had my engine machined and the plugs *look* new, but they sandblasted the
engine so that doesn't necessarily mean anything.  How can I tell, do I need
to worry about it, or should I really make sure I replace these.

Patrick Bowen
(who happens to have 1 million questions today)