chepburn
Well Known Member
Good Morning...
My IO360A1B has exhibited a strange start behavior this winter. I haven't been as active this year, so have only managed to get flying one or twice a month.
I preheat the engine...Oil temp is around 50 when it is started up.
Standard cold start for me is prime for 5-6 seconds, throttle cracked, mixture ICO. The engine starts after a blade or two, and is firing on all 4. I advance mixture to about 50-75% and let things settle out. However, after about 10 seconds power goes to zero, and I have to juggle the throttle -way- up and back again (and adjust mixture as well) to keep the engine turning over... This dance goes on for about 60? seconds then the engine settles down. Sometimes I lose it and have to restart. Its behaving like I haven't selected a tank yet. ... no fuel to burn..
This behavior doesn't make me comfortable needless to say. Engine runs fine after this initial start problem.
I sump the tanks before start (no water evident..although not as much of an issue with FI)
Any ideas? I'd most like to know if the engine is telling me something I should be taking care of -now!-
Chris
My IO360A1B has exhibited a strange start behavior this winter. I haven't been as active this year, so have only managed to get flying one or twice a month.
I preheat the engine...Oil temp is around 50 when it is started up.
Standard cold start for me is prime for 5-6 seconds, throttle cracked, mixture ICO. The engine starts after a blade or two, and is firing on all 4. I advance mixture to about 50-75% and let things settle out. However, after about 10 seconds power goes to zero, and I have to juggle the throttle -way- up and back again (and adjust mixture as well) to keep the engine turning over... This dance goes on for about 60? seconds then the engine settles down. Sometimes I lose it and have to restart. Its behaving like I haven't selected a tank yet. ... no fuel to burn..
This behavior doesn't make me comfortable needless to say. Engine runs fine after this initial start problem.
I sump the tanks before start (no water evident..although not as much of an issue with FI)
Any ideas? I'd most like to know if the engine is telling me something I should be taking care of -now!-
Chris