Engine analyzer.

Which is why I bought the thing in the first place! In my opinion, it
has paid for itself.

And if it turns out that the plug was fouled the analyzer didn't do
anything but make you nervous.

True. But if it was something really bad, the JPI made it apparent long
before I could have detected it "by ear".

Which, in aviation, means I had time enough to get it back on the ground.
Personally, I like the idea of trouble-shooting on terra firma.
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

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)

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