Engine shutter??

Discussion in 'Lessons Learned' started by bahama flier, Oct 28, 2016.

  1. bahama flier

    bahama flier Pre-takeoff checklist

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    An hour of flight, over the Atlantic, my motor started to just shutter for a second, not skip, just shook, it happened about every minute for an hour. I was on the way to the Bahamas and past the point of no return, at 7500 ft.

    After I landed, I called my Mechanic, first checked for water in fuel, then plugs and wires. All looked normal but,,,,, I noticed a blown exhaust manifold gasket and exhaust blowing on one plug.

    My mechanic said it was causing a pre-ignition on that plug and when it fired, it was firing backwards on the motor causing a shutter rather than a skip. He told me not to lean the motor on my return trip, the cooler fuel should not fire prematurely.

    He was right, no shutter on the return trip. I really should check my exhaust gaskets closer.
    I know many of you know this already, but I just passed in on for the benefit of the one like me that did not know this.
     
  2. Norman

    Norman En-Route

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    How long has it been since the mags were serviced. They need attention about every 500 hours.
     
  3. SkyDog58

    SkyDog58 Final Approach

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    The fact that it shuttered makes me shudder.
     
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  4. James331

    James331 Touchdown! Greaser!

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    Stuck valve?
     
  5. Tom-D

    Tom-D Taxi to Parking

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    why not a little gob of water ?
     
  6. James331

    James331 Touchdown! Greaser!

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    Maybe, just adding another possibility.
     
  7. Cpt_Kirk

    Cpt_Kirk En-Route

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    Pre-ignition? Pretty sure there would be a catastrophic failure shortly thereafter if it was indeed pre-igntion.
     
  8. wsuffa

    wsuffa Touchdown! Greaser!

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    Good thing it wasn't a turbocharged engine - blown exhaust gasket or cracked exhaust pipe are nothing to trifle with....
     
  9. hotprops

    hotprops Line Up and Wait PoA Supporter

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    every time i'd fly over a large distance of water all of my aircraft engines would go into "auto-rough" and started running fine as soon as i could see land!
     
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  10. The Pilot Guy

    The Pilot Guy Pre-Flight

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    Solid info, always scary when the plane is acting different than normal..
     
  11. Timbeck2

    Timbeck2 En-Route

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    Bahama Flyer - good thread. These are why I started coming here in the first place. Nobody is ever going to experience everything that could happen but between the members here we have a large portion of it covered - kind of like the monkeys and the typewriters scenario.
     
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  12. whereisrandall

    whereisrandall Pre-takeoff checklist

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    ^ What he said. Thanks.