Since the original poster indicated they were flying a twin, they most
definitely have a prop which feathers if oil pressure is lost, otherwise
single engine handling could become even more exciting than usual. Of
course, someone somewhere doubtless knows of a counter example. For a
single, the reverse is usually true: the prop goes to fine pitch if you lose
oil pressure.

That being said, high oil temperature and low oil pressure are definitely
clues. What's curious is that you don't see this behavior just idling. If
low oil levels were the culprit, I'd expect the same thing to happen after a
ground runup. I think it's time to talk to an A&P.

mark

"Wayne" wrote in message
...
This is only a guess but may make some sense. Some CS props will go
full
pitch if oil pressure is lost, others will to to minimum pitch with no oil
pressure. You said that the oil temperature was high. (an indication of
low
oil level). Also how is the oil pressure just before it shuts down? Being
at idle already, full pitch could make enough drag to stall the engine.
OTOH, if the engine stalled first, the lack of oil pressure would cause
the
prop to feather too. Make sure the oil is the right viscosity too. In
planes
with oil inversion systems, it's important that you have the type of prop
that goes to full pitch because the pressure drop during the transition to
inverted would cause an engine overspeed if it was the type that went to
minimum pitch. Not that yours has an inversion system, but it's nice to
know
which prop you have. Let me know how you make out, I will be reading the
other replies too but am curious to answer to your problem.
Wayne

"AIR ADVENTURE82" wrote in message
...
Today I was flying my Twin Comanche PA30 everything was great until
after
landing. Once I had the wheels on the ground I pulled the power back to

idle,
about three seconds or so after I pulled the power back the prop
feathered
and
the engine shut down. I let the engine cool down for about 30 min then
started
the engine right up. Everything was running great. So I took off and
flew
around for a while then came back to land, this time after I landed I
put
the power back up to 1500 rpm, the oil temp was right below redline the
oil
was at 50psi then the prop feathered and the engine shut down again.
This
also
happened to me yesterday. Every time I land the prop feathers and the
engine
shuts down . Everythings always great until after landing. I only have
40
hours on the engine. Could anyone please help me out? Has this ever
happened
to anyone before? Does anyone have any ideas on what it could be
thanks
for
everyone's help.