Dood Posted April 18, 2015 Report Share Posted April 18, 2015 My lycoming (on a M20J) is very very hard to start when the temperature is hot or when the motor has just make a flight. The motor has only 400 hours since overhaul. Have you the same problem ? Can you describe me your engine start procedure ? thanks Quote Link to comment Share on other sites More sharing options...
JasonW Posted April 18, 2015 Report Share Posted April 18, 2015 I've owned my 81' J for a little over a year and had the same problem initially. Many on this site suggest to leave the throttle at 1000 rpm at shut down and don't touch it. For hot start up leave the mixture closed and turn it over. When it fires push the mixture in. Works every time. I do the same on cold starts with the added step of 5 secs of boost pump the the mixture wide open before closing it for start. It really seems to help to have the throttle open to that magic 1000rpm mark. 3 Quote Link to comment Share on other sites More sharing options...
Piloto Posted April 18, 2015 Report Share Posted April 18, 2015 It helps to have a fast starter like the Sky-Tec and a Concorde battery. José Quote Link to comment Share on other sites More sharing options...
Bartman Posted April 19, 2015 Report Share Posted April 19, 2015 Just do a flooded engine start when it's hot. Mixture at cutoff, throttle full open, crank, and adjust throttle/mixture when she fires. 1 Quote Link to comment Share on other sites More sharing options...
Hank Posted April 19, 2015 Report Share Posted April 19, 2015 My lycoming (on a M20J) is very very hard to start when the temperature is hot or when the motor has just make a flight. The motor has only 400 hours since overhaul. Have you the same problem ? Can you describe me your engine start procedure ? thanks Ah, the joys of a C! Mixture rich, pump throttle, turn key & push, release when it fires. Every time, hot, cold, recently flown or snowy (with preheat). 1 Quote Link to comment Share on other sites More sharing options...
moodychief Posted April 19, 2015 Report Share Posted April 19, 2015 Ah, the joys of a C! Mixture rich, pump throttle, turn key & push, release when it fires. Every time, hot, cold, recently flown or snowy (with preheat). +1 for the C. A friend who owns a J commented when leaving Don Maxwell's that I should have had my engine checked as it started toooo fast! Quote Link to comment Share on other sites More sharing options...
IndyTim Posted April 19, 2015 Report Share Posted April 19, 2015 Mine is a TSIO but I believe the principles are the same. When hot, I don't prime, pump or anything else. I crack the throttle, go full rich, and it almost always fires right up. Question: when did you last check the timing on your mags? That was the culprit when I went through a period of hard starts. Quote Link to comment Share on other sites More sharing options...
Guest Posted April 19, 2015 Report Share Posted April 19, 2015 My lycoming (on a M20J) is very very hard to start when the temperature is hot or when the motor has just make a flight. The motor has only 400 hours since overhaul. Have you the same problem ? Can you describe me your engine start procedure ? thanks At 400 hours you're close to needing the 500 hour check completed on your magneto or magnetos. Along with magneto maintenance check your spark plugs, if they are Champion brand check them for high internal resistance. Clarence Quote Link to comment Share on other sites More sharing options...
Dood Posted April 26, 2015 Author Report Share Posted April 26, 2015 At 400 hours you're close to needing the 500 hour check completed on your magneto or magnetos. Along with magneto maintenance check your spark plugs, if they are Champion brand check them for high internal resistance. Clarence Thanks Clarence, I'll check my spark plugs Quote Link to comment Share on other sites More sharing options...
joepilot Posted May 25, 2015 Report Share Posted May 25, 2015 Just do a flooded engine start when it's hot. Mixture at cutoff, throttle full open, crank, and adjust throttle/mixture when she fires. This works for me, too. 201J. If it only sat for a few hrs & still warm, it takes a fairly short shot of boost fuel/mix rich. Then idle cut off & crank. Think every motor's a little different. Quote Link to comment Share on other sites More sharing options...
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