25hr Inspection 912is - Concerns

Nothing gives me any great concern.

When you first tried to "Burp" the engine, was the Mag plug still out?
If the crankcase is not "AirTight" it will not burp.
40 turns of the prop pumped oil into the crankcase and retuned none.
A short shot of compressed shop air into the Mag Plug Hole will also Burp the crankcase.

A new engine has some of the assembly debris. The next inspection should be cleaner.

The Blowby of the Differential Pressure test is very similar to a running engine.
You should expect to hear continuous burping and the return of ALL the excess Oil in the crankcase.

After cutting the Oil Filter open, place the paper filter element in a jar with a sealable lid.
Add some gasoline to the jar and shake it vigorously to rinse the oil filter element.
Pour the Gasoline/Oil debris mixture through a white "Coffee" Filter to reveal the filtered out debris.

ECU Hours = Lane ON Time.
Hobbs Hours = Engine Running Time.
ECU Time will always outrun the Hobbs time.

Everything Bill said. :) 

Yes, plugs were out when trying to burp.... that explains it.

Also glad that the diff press burping is expected. I was a bit concerned. 

I'll soak the filter paper and see what's there. 

As far as hours indicated goes... the ecu engine running time is less than the time extracted from logs in my g3x. It differs by about 3 hours. Is the ecu timer based on a specific rpm? I've been tracking from start time to stop time.

As a famous man once said, "What we have here is a failure to communicate." ?

There are multiple timers running on multiple devices.

There are Hobbs-Type timers.
These record the time that the engine is running without regard to the RPMs.  ON or OFF!

Your g3x likely has a Hobbs time that you can adjust to match the Engine total hours.

The ECU has its own timer that reconds the Lane ON time without regard to the engine,
The lanes can be ON without the engine running but you can NOT run the engine without a Lane ON.
Therefore the ECU/Lane timer will always outrun the Hobbs.

An ECU/Lane and Engine/Hobbs timers are internal to the Rotax ECU Module and cannot be adjusted.
Both will include the few hours the engine spent on the test stand at the factory and so will show more time than your g3x does unless YOU adjusted the g3x to match.

I haven't looked closely at the g3x manual but most EFIS panels are similar.
There is likely a timer for Hobbs Time, Tach Time, Engine Time, and possibly EFIS/gx3 ON Time and Rotax ECU/Lane time.

So, when you refer to an "ECU Engine Running Time" and an "ECU Timer", what do you really mean?
Engine Running time (Hobbs) taken from the ECU? 
ECU/Lane Time?   or
A Hobbs time from the gx3/EFIS?

It sounds like the g3x Log timer records the time the g3x is power without regard to the engine operating.

- - -

Tach Time is the only timer that references Engine rpm.
It is really a revolution counter scaled to display as hours instead of thousands of revolutions.

Hi all

Just my take on checking the oil filter paper element.  I was always shown that the easy (fast) way was to cut the element out and make it about 3 to 4 segments in length.  I then fold the pleaded element back together and wrap with several layers of paper towel.  Take this to you vise and squeeze the oil out.  The paper absorbs the oil and the element when you remove it will be almost 100% dry with all the little sparkly bits still sticking to it without the shiny oil in the way.  Up to the 100 hour, even as much as 200 hour, you can expect to see traces of breakin in the filter.  Some of the shiny parts are from the assembly lubes such as Loctite anti seize.  It is rare to find anything ferrous (magnetic) and tiny bits of carbon sometimes find there way to the filter.  

Just my take on it.

Cheers