In-Flight Engine Failure

(Bill Hale) wrote in message . com...
"O. Sami Saydjari" wrote in message ...
Well, it happended. I have owned the plane (Piper Turbo Arrow III) for
3 months and the engine failed during climb out on Tuesday. Altitude
was 4400 feet. Luckily, the engine did not entirely quit and I made it
to an airport within 10 miles. TBO was 1000 hours away. Dissapointing!
When we cut the oil filter, it was full of fairly large aluminum and
steel bits of metal. Arg!

What is wrong with this engine? The symptoms surely don't relate to
P leads or magneto wires.

Why not run a compression check on it? Take off the valve cover on
any suspicious cylinders. What's in there?

Take off the cylinder, if you figure out
that it's only one. See what's going on. What's the cam look like?

With the cylinder off, you can look inside the case for clues.

There are a lot of failures where you could do a repair and be back
in business--unless something got loose and whanged around inside.
The oil filter probably kept stuff out of the bearings.

Sure, it kept the stuff out of the bearings. But the oil pump
is upstream of the filter, and all that metal garbage went through it
and chewed it up. "Fixing up" the engine is spending money on an
engine that will fail again very shortly, if it generates any oil
pressure at all. Nothing less than complete teardown is necessary
here.

Dan

Sure, it kept the stuff out of the bearings. But the oil pump
is upstream of the filter, and all that metal garbage went through it
and chewed it up. "Fixing up" the engine is spending money on an
engine that will fail again very shortly, if it generates any oil
pressure at all. Nothing less than complete teardown is necessary
here.


Yes, seems reasonable, painful as that conclusion is.
Price tag: $21K (plus labor). Gulp.

In article ,
"O. Sami Saydjari" wrote:

Sure, it kept the stuff out of the bearings. But the oil pump
is upstream of the filter, and all that metal garbage went through it
and chewed it up. "Fixing up" the engine is spending money on an
engine that will fail again very shortly, if it generates any oil
pressure at all. Nothing less than complete teardown is necessary
here.


Yes, seems reasonable, painful as that conclusion is.
Price tag: $21K (plus labor). Gulp.

I can only offer my own experience. My club had an Archer which showed
metal in the oil filter. The engine had about 1300 SMOH, and this was
the third run on the engine. We tried pulling cylinders and opening the
oil pump trying to find the problem and ended up just throwing a lot of
good money after bad. In the end, we racked up a lot of shop bills and
still had to get a new engine.

IHMO, the aviation gods have smiled upon you. They made the engine last
long enough to get you safely on the ground so you could write that $21k
check. The alternative could have been much worse.

IHMO, the aviation gods have smiled upon you. They made the engine last
long enough to get you safely on the ground so you could write that $21k
check. The alternative could have been much worse.

I definitely agree.

Ouch. I paid 20K and change for a Penn Yann O-540 rebuild to new limits
with everything new except the case and crank last summer. Yours is a 4
banger, right? I guess the turbo adds a bunch to it?

"O. Sami Saydjari" wrote:

Yes, seems reasonable, painful as that conclusion is.
Price tag: $21K (plus labor). Gulp.

--
--Ray Andraka, P.E.
President, the Andraka Consulting Group, Inc.
401/884-7930 Fax 401/884-7950
email
http://www.andraka.com

"They that give up essential liberty to obtain a little
temporary safety deserve neither liberty nor safety."
-Benjamin Franklin, 1759

6 cylinders.

Ray Andraka wrote:

Ouch. I paid 20K and change for a Penn Yann O-540 rebuild to new limits
with everything new except the case and crank last summer. Yours is a 4
banger, right? I guess the turbo adds a bunch to it?

"O. Sami Saydjari" wrote:


Yes, seems reasonable, painful as that conclusion is.
Price tag: $21K (plus labor). Gulp.


--
--Ray Andraka, P.E.
President, the Andraka Consulting Group, Inc.
401/884-7930 Fax 401/884-7950
email
http://www.andraka.com

"They that give up essential liberty to obtain a little
temporary safety deserve neither liberty nor safety."
-Benjamin Franklin, 1759