Engine analyzer.

wrote:
On Wed, 24 Nov 2004 13:12:28 -0700, Newps wrote:


I also have one in my 67 182. Nice blinkin' lights but I wouldn't do it
again.


I've spent a lot more time installing and maintaining (troubleshooting
and repairing faults where the owner was convinced he/she had a
serious engine problem) "graphic engine monitors" than I have using
an engine monitor to help diagnose a problem.

No ****. All those damn connections just means many more failure points.



The only instance I've ever had on the shop floor where a problem was
identified by an engine monitor in-flight was an engine that spit out
the pipe plug in the alternate position for the fuel injector nozzle.

That happened to me. I could detect a slight engine roughness at idle
and when I pulled the power to land the CHT plummeted by about 150
degrees in just a few seconds. On the ground the engine was just ever
so slightly rough. Found the offending missing plug and replaced it.

Jay said...

"In fact, I'm in the middle of diagnosing an engine problem that the JPI has
made much simpler to correct. The #2 cylinder is not always firing, but
only when set to the left mag."

I guess this is really important if you fly around using only the left mag.
I have never really done that, however, so i guess I don't need the engine
analyzer.

DB

Jay said...

"In fact, I'm in the middle of diagnosing an engine problem that the JPI has
made much simpler to correct. The #2 cylinder is not always firing, but
only when set to the left mag."

I guess this is really important if you fly around using only the left mag.
I have never really done that, however, so i guess I don't need the engine
analyzer.

DB

Well, your statement makes sense if you don't agree that having two
separate ignition systems is a good and logical safety feature.

If, however, you like having two magnetos, it's got to be a good thing
to be able to diagnose which one is having a problem. Since I would
clearly have never noticed a problem without the EDM-700's graphic
display -- the engine never sounded any different -- I think it's safe
to say that my engine analyzer has been a blessing.
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

Jay,

Well, your statement makes sense if you don't agree that having two
separate ignition systems is a good and logical safety feature.


Not only that: The engine is designed to work with two fully working
ignition systems. If one isn't working properly, the engine will
likely suffer.

--
Thomas Borchert (EDDH)