r0ckst4r Posted November 1, 2020 Report Posted November 1, 2020 I was doing some touch and go's yesterday and on the last landing when I pulled the throttle to idle it didn't get quite to idle. Usually idles at around 500rpm or so and I was stuck at about 700 or 800 no matter how much I pulled back on the throttle. Needless to say that was the end of the day. Is this just out of adjustment and is a simple fix or is this more complicated than I think. Quote
Schllc Posted November 1, 2020 Report Posted November 1, 2020 None of the four 550’s I have owned would idle as low as 500. All of them were high 7’s with one not really enjoying anything under 8. none of them would run on the ground idling as low as 500. Is 500rpm idle typical for the 550 in anyone else’s plane? Quote
r0ckst4r Posted November 1, 2020 Author Report Posted November 1, 2020 25 minutes ago, Schllc said: None of the four 550’s I have owned would idle as low as 500. All of them were high 7’s with one not really enjoying anything under 8. none of them would run on the ground idling as low as 500. Is 500rpm idle typical for the 550 in anyone else’s plane? Not to make this a topic of what idle RPM is... it might usually idle at 600 or so... that part is not the issue. The issue is that it now is a few hundred RPM above where it should be. The last landing was long and I had to use my brakes during taxi. Quote
Guest Posted November 1, 2020 Report Posted November 1, 2020 Check to see that the throttle arm contacts the idle stop screw when you pull the throttle closed. If it does an induction leak might account for an increase in idle speed. Clarence Quote
Missile=Awesome Posted November 1, 2020 Report Posted November 1, 2020 40 minutes ago, M20Doc said: Check to see that the throttle arm contacts the idle stop screw when you pull the throttle closed. If it does an induction leak might account for an increase in idle speed. Clarence We found a crack in the seam of our large induction gasket. Very difficult to see... 1 Quote
carusoam Posted November 1, 2020 Report Posted November 1, 2020 My O... Typically see 700... To get this, the knob needs to be pulled, and dialed out completely... If by chance, you pulled it back, but didn’t dial the knob all the way out... You may see additional air getting in, more than expected... Expect to be on the hunt for what is allowing a small amount of air into the system... PP thoughts only, not a mechanic... Best regards, -a- Quote
Guest Posted November 1, 2020 Report Posted November 1, 2020 (edited) A little more information. Edited November 1, 2020 by M20Doc Quote
r0ckst4r Posted November 1, 2020 Author Report Posted November 1, 2020 Thank you @M20Doc. That is helpful. I'm hoping its just a simple adjustment issue but we shall see. Quote
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