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Do jets, needle/emulsion tubes wear out?

Discussion in 'XJ Technical Chat' started by jim123, Aug 26, 2018.

  1. jim123

    jim123 Member

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    Wondering if fuel passing through them wears on them like water on rocks in a fast flowing river.
     
    jim123, Aug 26, 2018
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  2. Door dude

    Door dude Active Member

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    Ive wondered that myself, good question hope someone has the answer.
     
    Door dude, Aug 26, 2018
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  3. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    They don't wear out from fuel and air passing though, but the needles can wear the emulsion tube outlets into an oval over time.
    You do have to have quite a few miles on the machine for that to happen though, since the needles are held by a spring, are (mostly) self-centering, and will deflect if there is any misalignment between the needle and the emulsion tube bore.


    It's not water that wears the rocks in a river, but the combination of silt and grit that's carried by floods, and ice spreading cracks in the rocks over the winter.
     
    k-moe, Aug 26, 2018
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  4. Door dude

    Door dude Active Member

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    Love it when you go that extra mile k.
     
    Door dude, Aug 26, 2018
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