Can anyone identify where this came from?

Discussion in 'General Tech Talk' started by 31moppie, Dec 7, 2018.

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  1. 31moppie

    31moppieStandard Bore

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    So, I am cleaning up the oil sump on my 2010 Roadster and I find this "shaving" in the oil screen at the front of sump.
    upload_2018-12-7_11-53-57.png
    I think it was all one piece but it might have been two pieces. It is quite shiny, about 1/2" long, and felt quite hard when I broke it apart. Thinking that it may be a piece of chrome, I put a magnet to it and it is non-magnetic. Bike has 40k km on it and made no strange noises or had any other problems. I am in the process of installing new pistons and cams for extra power. The connecting rod bearings look like new and it doesn't look like there has been any crud go thru the oiling system. The rest of the sump had no other filings in it. There was a small amount of sludge (clutch?) is some of the sump recesses. Can't think of anything that would be chromed unless it was in the transmission but then I would have thought that it would be in the rear screen not the front. Sure got me baffled.
     
  2. stollydriver

    stollydriverLive life to the full

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    That's what I call a squeaky bum find - not much help but I'm sure someone will have answers..
     
  3. Triple Trouble

    Triple TroubleThe Duk

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    looks like a piece of swarf from when the casting was drilled at the factory. Probably aluminum. The screen did its job. I wouldn't sweat it.
     
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  4. FE_rex

    FE_rexBob Wills is still the King

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    This. Looks like typical shaving from machine tool
     
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  5. RockOn

    RockOn.060 Over

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    Now I know where my miniature chrome plated party hats disappeared to back in 2010. :D
     
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  6. Paul Bryant

    Paul BryantLiving Legend

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    That is definitely some swarf from machining a component.
    How it got to be in there sure is a mystery, but as others have said, I wouldn't be concerned about it, it's not from an Engine part.
     
  7. 31moppie

    31moppieStandard Bore

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    Lol.

    It definitely is not aluminum. I thought it looked like something that tooling might produce but chrome is too hard to machine like that as far as I know. It almost seems like it could be Nikasil from a liner but they all look good. I checked the liners with a magnet and the Nikasil is slightly magnetic so I went back and checked a smaller piece of the shaving and it is slightly magnetic too. Does anyone know if they machine the liners after they are coated?
     
  8. idk

    idkLiving Legend

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    Probably a bearing and your engine is about to die. Give the bike to me and I will worry about. I'd like to do this as a kind and thoughtful present to you at this time of the year. :whitstling::cool:
     
  9. warp9.9

    warp9.9Pocałuj mnie w dupę

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    Its swarf. If it wasn't and something was failing there would be a whole bunch more than just two pieces.
     
    Last edited: Dec 7, 2018
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  10. Paul Bryant

    Paul BryantLiving Legend

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    Exacery
     
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