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Engine only starts with auto start

Hans Humblet

Hans Humblet

Messages
18
Country
belgium
Hi,

I'm creating a single prop aircraft. But somehow I can't get the engine to start.
I have my battery on, magnetos set to both and when I press the start switch, the starter engine comes on, but the engine won't start.
Fuel tank is full and selected, fuel pump is on.

When I use auto start, the engine starts without a problem.
When I turn it off manually (magnetos off) I can start it up manually by turning both magnetos back on and hitting the start button.
When I turn it of by using engine auto stop, I can't turn it on manually.

Somehow the auto start/stop does something in the background which I cannot find.

Anyone has any ideas?

Thanks in advance!
 
Hi,

I have a start checklist and the usual culprits are
- ignition switch (and magneto to both)
- fuel valve open
- mixture (full rich)
- fuel tank selector (all - 1 - is the easiest)

If you don't have the corresponding switches, you will need to initialize them at start

Take care that K: instruction may not be taken into account while the sim is not fully ready - take a look here AIRCRAFT LOAD AND RE-LOAD ISSUES
https://www.fsdeveloper.com/wiki/index.php/XML:_Events_and_Traps

Hope this helps.

Gérard
 
Hi Gerard,

Thanks for the quick reply!!!

I assumed it had something to do with the mixture, because I have no manual control for it in my plane.
I now got it to work by adding these lines in the model xml:

XML: 
<UseTemplate Name="ASOBO_FUEL_Update_MatchValveToMixture">
</UseTemplate>
 
What I describe is for P3D, but should not be very different for FS2020.

Did not noticed the FS2020 tag ;)

Gérard
 
Oooh... I'm sorry! I added the MSFS tag, but maybe not in the correct way 🙊 I'm new to this forum (at least as a poster, that is). I'll make sure next time I do it the correct way :)
 
Also... bug in P3D but I don't know if it carried over into MSFS. You must set mags to 'on' before triggering the starter. In FSX/P3D if you fired the starter before turning the mags on, the engine never starts.
 
I had similar issue with engine refuse to start before people advised me about fuel valve situation. If FuelValveOpen is changed to True, everything works

But my issue is that my airplane has fuel selector with three positions OFF/LEFT/RIGHT so switching from OFF to LEFT and back should toggle fuel valve?

In any case, my knob is currently misbehaving. It draws fuel from the right tank in both OFF and LEFT positions, and draws fuel from some undefined source in RIGHT position (no fuel being used in tanks as per weight page but engine keeps working)

I like Asobo templates but sometimes they are way too complicated or you need to know something you would never get from those templates.
 
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