Proper Engine Run Up (Cessna 150)

September 28, 2010

Jason shows you proper engine run-up technique. How to most efficiently read you instrumentation and how to clear a fouled or bad magneto


7 Responses to “Proper Engine Run Up (Cessna 150)”

  1. the1bigace on September 28th, 2010 2:05 pm

    According to the function of a magneto, it could very well be a problem with the device as well, As a mechanic certain symptoms can eliminate either as a prime suspect. Having two magnetos on the crankshaft is like having dual overhead cams on an automobile. It reduces mechanical latency and increases performance. The drop in RPM can Also show that loss of power. So when You do your run-ups double check after the carbon burn off. It never hurts to be on the safe side.

  2. mtbevins on September 28th, 2010 2:27 pm

    Nice video. One thought though; the portion where you cover “Clearing a bad magneto” do you not mean “Clearing a fouled spark plug? While the issue shows up during the mag check, it is really the spark plug which had accumulated carbon on the electrode causing the exaggerated drop in RPM. One other thought that might be helpful is to mention the maximum allowable drop in RMP during the mag check and the max difference between the left and right magneto. Sorry I do not mean to nit-pick. 🙂

  3. jcfsdca on September 28th, 2010 2:46 pm

    You beat me to the carb heat at idle question. As well as ammeter at idle.

  4. txjack1959 on September 28th, 2010 3:26 pm

    @kewlmynd99 good question since this is the setup for landing. i check mine.

  5. kewlmynd99 on September 28th, 2010 3:46 pm

    Is there a reason you don’t check for carb heat on at idle?

  6. gescoboza on September 28th, 2010 4:00 pm

    holy cow !!! that dude is like 7ft something tall !!!
    Cessna 150 are usually 8.6 Ft in Height, and his head almost reaches the limit of the Vertical Stabilizer 3:38

  7. skyyguyy on September 28th, 2010 4:56 pm


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