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Crystals growing in the transfer tubes!?!??

Discussion in 'Chainsaws' started by Nutball, Jun 3, 2019.

  1. Nutball

    Nutball Super OPE Member

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    I found some crystals growing in some Echo caves

    DSC01469.JPG
     
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  2. Intoxsawcated

    Intoxsawcated Super OPE Member

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    Are they sodium cast cylinders?

    Sent from my SM-S767VL using Tapatalk
     
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  3. tree monkey

    tree monkey Mastermind Approved!

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    stop hiding your meth in the gas tank
     
  4. Dub11

    Dub11 Some body poisoned the watering hole!

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    That's go fast juice man.
     
  5. deye223

    deye223 Super OPE Member

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    :risas3:
     
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  6. 00wyk

    00wyk Pinnacle OPE Member

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    Crystals usually form when minerals precipitate out of a solution in a case like this(no pun intended). Either that stuff is coaxed out of the jug or the fuel or both. That area of the cylinder is where fuel starts to gain velocity. I guess maybe that would cause a saturated/stable mixture to start to separate, or a cooling effect might cause crystal growth/precipitant. Oxygen, silicon, aluminum, iron, magnesium, calcium, sodium and potassium are the big crystal producers according to Wiki. Aluminum castings like pistons and cylinders can be made up of as much as 13% Silicon, btw. Your case is magnesium, and who knows what's in our fuel nowadays, but we all know it's oxygenated - ethanol also brings oxygen with it as well. Aluminum is so reactive it naturally occurs in about 270 different types of minerals. Take your pic.
     
  7. smokey7

    smokey7 Pinnacle OPE Member

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    Is it possible that it is metal grinding chips just stuck in the mix oil that is stuck inside the transfers?
     
  8. Nutball

    Nutball Super OPE Member

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    I wondered about that, it almost looked like ferrous dust standing up on a magnetic surface, but nothing should be ferrous or magnetic. It has sat for a few months since last run, so that could give it time to grow tiny crystals. I was really careful to clean it after grinding, and have found no wear in the cylinder or ring suggesting any metal left. If I remember, I'll try swabbing a sample and looking under the microscope.
     
  9. heimannm

    heimannm Pinnacle OPE Member

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    Seems to me it is most likely oxidation, aluminum oxide in this case.

    Mark
     
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  10. Nutball

    Nutball Super OPE Member

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    Usually aluminum oxide forms a powdery coating. Maybe the gas allowed it to grow well formed?
     
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  11. Nutball

    Nutball Super OPE Member

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    I couldn't get a sample to the microscope for a clear 40-100x view, just a 6x view that's been cropped afterward


    DSC01486 (2) (1280x960).jpg DSC01490.JPG DSC01502.JPG
     
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  12. MG porting

    MG porting Pinnacle OPE Member

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    I'm going to say it's you're fuel.
     
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  13. Nutball

    Nutball Super OPE Member

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    I guess a gasoline vapor filled environment could change how aluminum oxide grows allowing it to form perfect straight crystals instead of dust.
     
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  14. MG porting

    MG porting Pinnacle OPE Member

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    That's what I was thinking it's weird how stuff reacts to others.
     
  15. legdelimber

    legdelimber Well-Known OPE Member

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    Sort of makes you think of the "Tin whiskers" problem.
    https://en.wikipedia.org/wiki/Whisker_%28metallurgy%29

    Is there anyone here that's seriously knowledgeable about plating?
    Is it possibly some leftover chemicals from cleaning or prep?
    What about contaminated chemicals & plating supplies?
    How about tooling in the factory having some stray metals mixed in?

    This stuff might well explain some of the unexplained scratching of pistons & cylinders, etc, that some folks have found in their Echoes.
     
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  16. MG porting

    MG porting Pinnacle OPE Member

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    It's quite possible.
     
  17. legdelimber

    legdelimber Well-Known OPE Member

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    Heck, what if someone spilled something during maintenance work on the line?
    Solder or weld spatter falling into things?
    How about a broken lamp and stray metals/mercury?
    We do get many food recalls here in the U.S.A. for such things as worn equipment shedding shavings of plastic or metals into the hamburger, etc.
    What's to say something about that simple hasn't happened with the Echo cylinder?
     
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  18. N8TE

    N8TE Well-Known OPE Member

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    It'll eventually make the teeth fall off the chain though
     
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  19. Intoxsawcated

    Intoxsawcated Super OPE Member

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    Maybe transfers are like nostrils and grow hairs in their old age?

    Sent from my SM-S767VL using Tapatalk
     
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