"Justin H" wrote in message ...
My Lycoming o-290 swallowed an exhaust valve and i suspect metal in the oil
cooler. where is a place that does experimental work that could check it.
thanks in advance for anybodys help


Damage like that and ANY indication of the possiblity of having metal
in the engine and I would do a complete teardown and inspection. A
teardown and inspection now is a heck of a lot cheaper than having a
catastrophic failure sometime in the future. There is nowhere that I
have to be or have my family at, that would cause me to put them
onboard the aircraft without having done a complete inspection after
an incident that might have put abnormal amounts of metal in the oil
system.

YMMV...but when it comes to my family, I am much more cautious than
normal.

Craig C.