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Starting without turning on the fuel


AndytotheD
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It might be a bit cheeky to intentionally see if things are broken by not performing steps in the checklists but I found that you can start the engine without touching the fuel cock and just leaving it closed.

 

I also note that once the engine is running, if you open the cock and then close it, it does starve fuel to the engine which then subsequently cuts out.

 

Not a big issue, cause if you follow the checklist, it shouldn't happen, just felt it should be pointed out.

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If I got it correctly from the fuel system diagram, both priming and wobble pumps are connected before the cut-off valve.

In other words it looks like it should be possible to prime the engine and run it all the time by manually creating fuel pressure with wobble pump while the main cut off valve is set to off.

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Edited by firmek

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Similar report (but regarding booster pump and pressure indicator) here:

https://forums.eagle.ru/showthread.php?p=2993620

 

There is clearly something off, and while the behaviour seems correct when the engine is already running (indicator switches on and engine stops), it seems wrong when it is not running (indicator switches off and engine is allowed to start).

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