jetdriven Posted July 16, 2011 Report Posted July 16, 2011 I think so. WOT FF is is the 18 GPH range. idle is like 2. SO, depending on throttle angle, and time, is the volume of fuel you get for priming. Quote
Immelman Posted July 16, 2011 Report Posted July 16, 2011 I open the throttle to approx the 12-13" m.p. position, mixture rich, and then turn on the fuel pump to prime. 3 seconds or so if its warm out (and the engine is cold), longer (5-7 seconds) in cold weather. I then pull the mixture to cut off and crack the throttle (1/8", approx 1000rpm position) and crank... works pretty well. If the engine is warm, I do not prime, just crank. Quote
gsengle Posted July 18, 2011 Report Posted July 18, 2011 Quote: Immelman I open the throttle to approx the 12-13" m.p. position, mixture rich, and then turn on the fuel pump to prime. 3 seconds or so if its warm out (and the engine is cold), longer (5-7 seconds) in cold weather. I then pull the mixture to cut off and crack the throttle (1/8", approx 1000rpm position) and crank... works pretty well. If the engine is warm, I do not prime, just crank. Quote
MARZ Posted July 19, 2011 Report Posted July 19, 2011 OK so now I'm confused - my method and reasoning Cold (hasn't run for the day) Turn on the pump with mixture full lean and wait for pressure Full rich mixture for as long as it takes to push it in and pull it back out to full lean pump off start cranking and sloooowly enrichen - three blade start I am under the impresssion that nothing gets to the cylinder till it comes off of full lean - have I just been lucky? Hot Exactly what has been posted - 1000 rpm shut down - no touchie anything - crank and start. Quote
Parker_Woodruff Posted July 19, 2011 Report Posted July 19, 2011 Quote: maropers I am under the impresssion that nothing gets to the cylinder till it comes off of full lean - have I just been lucky? Quote
Parker_Woodruff Posted July 19, 2011 Report Posted July 19, 2011 PS: I use the above link when teaching students how the fuel injection system in a typical Lycoming IO-360 works. It's technical in nature, but explained very well so that you don't have to be an engineer to understand it. Quote
Shadrach Posted July 19, 2011 Report Posted July 19, 2011 Quote: maropers I am under the impresssion that nothing gets to the cylinder till it comes off of full lean - have I just been lucky? Quote
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