My engine swallowed my air filter

Discussion in 'Maintenance Bay' started by SixPapaCharlie, Jul 9, 2019.

  1. PaulS

    PaulS Final Approach

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    It could've been a backfire, you don't know. Doesn't really matter though, once that air filter was damaged, in all probability pieces of the filter ended up being ingested by the engine.
     
  2. jsstevens

    jsstevens En-Route PoA Supporter

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    FTFY. :)
     
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  3. GeorgeC

    GeorgeC En-Route PoA Supporter

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    Overpriming?
     
  4. Fiveslide

    Fiveslide Pre-takeoff checklist

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    I took my Jeep through a mud hole pretty regularly, it was usually knee deep. Then one day, it was neck deep, someone with something much bigger than my Jeep had dug it out.

    Water, mud and the entire paper air filter went into the engine. A guy in a Toyota that was about to pull me out was making fun of me for getting stuck. With water over the windows and the interior full I turned the key with the clutch out and the starter and battery almost got it all the way out of the hole. Had to prove I wasn't stuck, I had an inop engine.

    I needed a rebuild after that. It was my most expensive mistake off-road.
     
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  5. PaulS

    PaulS Final Approach

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    Ya, but you saved face, lol.
     
  6. Fiveslide

    Fiveslide Pre-takeoff checklist

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    Beer made me do it.
     
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  7. Dan Thomas

    Dan Thomas Final Approach

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    They do, on startup sometimes, and they burn that filter as Tom says. Rare, but it happens. A too-rich mixture can do it, as in overpriming. Sometimes fuel dribbles out of the carb airbox as it runs back down the carb throat, and the backfire starts a fire in the cowling. I watched it happen one morning.
     
  8. Dr. O

    Dr. O Pattern Altitude

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    Engines have ingested and spit out lots worse things than a few bits of foam. As long as it is not a stainless screw or some such, I would not give it a second thought. But, we are supposed to be changing that filter before it becomes gummy or rotten.
     
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  9. Tom-D

    Tom-D Taxi to Parking PoA Supporter

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    probably wasn't any pieces, the foam just melts.
     
  10. Tom-D

    Tom-D Taxi to Parking PoA Supporter

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    need pictures of old filter.
     
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  11. timwinters

    timwinters Ejection Handle Pulled PoA Supporter

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    my filter is gummy when it's new!! :eek:
     
  12. Salty

    Salty En-Route PoA Supporter

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    Indeed.
     
  13. Timbeck2

    Timbeck2 Final Approach

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    <---- new gummy filter guy as well
     
  14. Checkout_my_Six

    Checkout_my_Six Final Approach

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    that sounds like a hard swallow....o_O
     
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  15. timwinters

    timwinters Ejection Handle Pulled PoA Supporter

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    With that said, I change mine at minimum at every annual...twice per year if I'm operating a lot off of grass. I never fly over 100 hr per year these days so I don't have to worry about that requirement. I used to.
     
  16. Tom-D

    Tom-D Taxi to Parking PoA Supporter

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    It should be, that is a fire retardant so the whole filter won't go poof when exposed to a back fire.
     
  17. Salty

    Salty En-Route PoA Supporter

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    I thought it was to aide in collection of particulates.
     
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  18. Kenny Phillips

    Kenny Phillips Pattern Altitude

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    Geez, I hope pilots can change the air filter. I always did.
     
  19. Ryan Klems

    Ryan Klems Pre-Flight

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    While not specifically listed in Part 43 Appendix A as a Preventative Maintenance task, the below letter of interpretation from the FAA does give the opinion that Appendix A is not intended to be a full list, but more representative of the tasks one might consider as major repairs, major alterations and preventative maintenance. As long as it doesn't involve complex disassembly/assembly to change the filter, I'd certainly consider it a preventative maintenance task.

    "Similarly, for the same reason, we also believe that the following sentence in Advisory Circular 43-12A, Preventive Maintenance (which was referenced in Mr. Hernandez's letter), is overly restrictive. That sentence, found in Paragraph 3(b)(1), states: "If a task or maintenance function does not appear in the list, it is not preventive maintenance." As with the other paragraphs of Appendix A (i.e., on major repairs and major alterations), the lists are better viewed as examples of the tasks in each category-they cannot be considered all- inclusive. "

    https://www.faa.gov/about/office_or...2009/Coleal - (2009) Legal Interpretation.pdf
     
  20. timwinters

    timwinters Ejection Handle Pulled PoA Supporter

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    Duh
     
  21. Checkout_my_Six

    Checkout_my_Six Final Approach

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    no....;)
     
  22. Tom-D

    Tom-D Taxi to Parking PoA Supporter

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    That too, primary = fire protection.
     
  23. Checkout_my_Six

    Checkout_my_Six Final Approach

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    no....Tom.

    air filter oil.jpg
     
    Last edited: Jul 10, 2019
  24. Salty

    Salty En-Route PoA Supporter

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    Funny how the manufacturers marketing statement says nothing about that primary purpose.

     
  25. Tom-D

    Tom-D Taxi to Parking PoA Supporter

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    Do you have a K&N filter soaked with that oil ?
     
  26. Tom-D

    Tom-D Taxi to Parking PoA Supporter

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    I will save the next instruction sheet I get with the new foamies
     
  27. Salty

    Salty En-Route PoA Supporter

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    I did find another press release that mentions fire retardant treatment, but it’s not the wetting agent.

     
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  28. Tom-D

    Tom-D Taxi to Parking PoA Supporter

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    Good enough, it's in there. I thought it was one and the same.
     
  29. 3393RP

    3393RP Pattern Altitude

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    I see from this and earlier posts you're pretending to have the knowledge of an IA-A&P again. I just can't tell if it's hubris or ignorance which makes you believe you can make judgements about subjects you know nothing about.
     
  30. Salty

    Salty En-Route PoA Supporter

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    Lol ok.

    Not sure how asking questions and pointing out facts is pretending to be an IA, or showing hubris, but whatever floats your boat.
     
    Last edited: Jul 11, 2019
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  31. wsuffa

    wsuffa Touchdown! Greaser!

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    Pull the chute! PULL THE CHUTE!!!!
     
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  32. Cap'n Jack

    Cap'n Jack Final Approach

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    I don't see your problem- he was right, wasn't he? Evidence was cited, wasn't it? To believe otherwise is argumentum ad verecundiam.
     
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  33. bflynn

    bflynn Final Approach

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    Are we getting soft? Am I the only one one who first read this and thought "heh, heh, heh, heh...Bryan's airplane swallows."
     
  34. SkyDog58

    SkyDog58 Ejection Handle Pulled PoA Supporter

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    Canis Non Grata
    Post 12.
     
  35. Salty

    Salty En-Route PoA Supporter

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    I think not accepting everything Tom says without question counts as hubris to some.
     
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  36. SkyDog58

    SkyDog58 Ejection Handle Pulled PoA Supporter

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    Whoa! This ain’t Latin America. Speak ‘Murican!
     
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  37. MIFlyer

    MIFlyer Line Up and Wait PoA Supporter

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    I don't know about that, but I know that if Tom is still actively wrenching when I get a plane of my own, I'll be talking to him about helping me keep it maintained.
     
  38. Salty

    Salty En-Route PoA Supporter

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    The facts here show it pretty clearly, even if you choose to ignore them.
     
  39. Tom-D

    Tom-D Taxi to Parking PoA Supporter

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    Still kinda nit pickin don't ya think?

    OBTW
    hu·bris
    /ˈ(h)yo͞obrəs/
    Learn to pronounce
    noun
    1. excessive pride or self-confidence.
      "the self-assured hubris among economists was shaken in the late 1980s"
      synonyms: arrogance, conceit, conceitedness, haughtiness, pride, vanity, self-importance, self-conceit, pomposity, superciliousness, feeling of superiority; More
      • (in Greek tragedy) excessive pride toward or defiance of the gods, leading to nemesis.
     
  40. Salty

    Salty En-Route PoA Supporter

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    That's the other point. I wasn't even disagreeing with you in the first place. I went out of my way to keep looking until I found something that showed you were right to some degree and posted it here for all to see.

    Then I get called out for my "hubris".

    Very rich.

    The only possible thing left to consider hubris would be that I didn't just accept what Tom said without question.
     
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