MavenRaven Posted January 9 Share Posted January 9 (edited) So was just playing around with the Mi-8 startup procedure and ran into a simple problem: If at any point during the engine startup procedure I shut the overhead fuel valve to that engine, the startup procedure fails. So far so good, as expected. But, then I can't figure out how to re-start that engine. Trying the normal procedure results in the engine warming up to about 20% and then dying again. Any tips how to recover from a failed engine startup? Edited January 9 by MavenRaven Link to comment Share on other sites More sharing options...
AlphaOneSix Posted January 9 Share Posted January 9 Works fine for me. How long after the RPM reaches 0% are you waiting before attempting a restart? 1 Link to comment Share on other sites More sharing options...
admiki Posted January 9 Share Posted January 9 6 hours ago, MavenRaven said: So was just playing around with the Mi-8 startup procedure and ran into a simple problem: If at any point during the engine startup procedure I shut the overhead fuel valve to that engine, the startup procedure fails. So far so good, as expected. But, then I can't figure out how to re-start that engine. Trying the normal procedure results in the engine warming up to about 20% and then dying again. Any tips how to recover from a failed engine startup? 2 hours ago, AlphaOneSix said: Works fine for me. How long after the RPM reaches 0% are you waiting before attempting a restart? Isn't correct procedure to crank first, to expel any unburnt fuel? Link to comment Share on other sites More sharing options...
AlphaOneSix Posted January 9 Share Posted January 9 3 hours ago, admiki said: Isn't correct procedure to crank first, to expel any unburnt fuel? That's only necessary if you've got unburned fuel in the combustion chamber, which doesn't happen when he does it the way he is describing. Unless by "overhead fuel valve" he doesn't mean the red levers above the pilot. 1 Link to comment Share on other sites More sharing options...
MavenRaven Posted January 10 Author Share Posted January 10 OK, so I tried to reproduce this myself and no luck?! The engine just restarts with no problems -_-' Well, topic closed until I can actually reliably reproduce this state. Now I'm really curious what the hell was I doing wrong Link to comment Share on other sites More sharing options...
admiki Posted January 10 Share Posted January 10 43 minutes ago, MavenRaven said: OK, so I tried to reproduce this myself and no luck?! The engine just restarts with no problems -_-' Well, topic closed until I can actually reliably reproduce this state. Now I'm really curious what the hell was I doing wrong If start is aborted for whatever reason, I think waiting 20-30 seconds before starting again is enough. If you just start the other engine, time needed is all that it takes to clear failed start 2 Link to comment Share on other sites More sharing options...
AlphaOneSix Posted January 11 Share Posted January 11 Yeah I was waiting about 30 seconds after the engine RPM reached zero before I tried another start. 1 Link to comment Share on other sites More sharing options...
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