Nasa Icing courses

On 1/8/2006 5:51 AM, Jay Honeck wrote:

And mechanical failures should have simple explanations, no? WHY did
one of the cam lobes fail? Why didn't ALL of the cam lobes fail?

Timeless issue. www.aviationconsumer.com has hours of reading on the
subject. The common factor is infrequent flying.

I suppose the *real* issue should be: Why do camshafts work at all? When
you sit down and rationally analyze what is happening inside your engine,
the danged thing should just throw itself to pieces in the first ten minutes
of operation.

Yet, most of them don't.

Some, however, like Ray's engine, do -- and in very peculiar ways. (Just
ONE cam lobe went bad?)

Why?

I wonder if this was the first cam lobe to actually fail. Have they all
been measured and determined to be within spec?

--
Mark Hansen, PP-ASEL, Instrument Airplane
Sacramento, CA

Check for valve sticking on that cylinder, that would raise
the pressure on the lifter/cam.


--
James H. Macklin
ATP,CFI,A&P

--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.
some support
http://www.usdoj.gov/olc/secondamendment2.htm
See http://www.fija.org/ more about your rights and duties.


"Mark Hansen" wrote in message
...
| On 1/8/2006 5:51 AM, Jay Honeck wrote:
|
| And mechanical failures should have simple
explanations, no? WHY did
| one of the cam lobes fail? Why didn't ALL of the cam
lobes fail?
|
| Timeless issue. www.aviationconsumer.com has hours of
reading on the
| subject. The common factor is infrequent flying.
|
| I suppose the *real* issue should be: Why do camshafts
work at all? When
| you sit down and rationally analyze what is happening
inside your engine,
| the danged thing should just throw itself to pieces in
the first ten minutes
| of operation.
|
| Yet, most of them don't.
|
| Some, however, like Ray's engine, do -- and in very
peculiar ways. (Just
| ONE cam lobe went bad?)
|
| Why?
|
| I wonder if this was the first cam lobe to actually fail.
Have they all
| been measured and determined to be within spec?
|
| --
| Mark Hansen, PP-ASEL, Instrument Airplane
| Sacramento, CA