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Orange thing around piston

Discussion in 'XJ Technical Chat' started by eigenseca, May 13, 2020.

  1. eigenseca

    eigenseca Member

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    82 Maxim 750. What is this orange thing around this piston? I can see it on some of the other pistons but not as much of it. Also that spot on the left is a piece of gasket material that fell down in there.

    IMG_20200513_205647.jpg
     
    eigenseca, May 13, 2020
    #1
  2. Franz

    Franz Well-Known Member

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    The orange thing is an O ring which is an oil seal. You only need to replace them if you have stripped the cylinder head and juggs off the engine.
     
    Franz, May 14, 2020
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  3. eigenseca

    eigenseca Member

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    Why can I see it on this piston but not others?
     
    eigenseca, May 14, 2020
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  4. Franz

    Franz Well-Known Member

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    You should be able to see them unless they are covered in oil. They must be there otherwise you will have oil leaking between the juggs and the crankcase when you get the engine running. What do you see?
     
    Franz, May 14, 2020
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  5. Franz

    Franz Well-Known Member

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    Orange O Rings 900 f


    15894672344664218594522246244283.jpg 15894672845185610963350403704347.jpg
     
    Franz, May 14, 2020
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  6. eigenseca

    eigenseca Member

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    Oh I see them now. The piston in the picture is just the cleanest one. The rest of them I can see a hint of orange around them. Thanks!
     
    eigenseca, May 14, 2020
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    Franz likes this.

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