"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

Justin
Lexington, KY

You can flush the cooler yourself and (if you're interested), collect any
metal flakes. You could do it in your kitchen sink, with a white towel over
the drain to catch any debris. Flush it several times in each direction and
see what comes out other than a bit of oil. After that, clean the sink
really well and throw away the towel, or you'll be subject to the wrath of
She Who Must Be Obeyed...