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Thread: Is this thing supposed to be loose?

  1. #1
    Join Date
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    Default Is this thing supposed to be loose?

    I have a Yanmar 3 cylinder Diesel in a John Deere X758.
    This little silver/aluminum cover fits on here loosely and vibrates back and forth when the engine runs. Is that correct? Here's a video:

    https://photos.app.goo.gl/6oiGaCTVUBm3Ugxd9
    The Constitution needs to be re-read, not re-written!

    If you can't handle Dr. Seuss, how will you handle real life?

    Current oil burners: MB GLK250 BlueTEC, John Deere X758
    New ride: MB GLS450 - most stately
    Gone but not forgotten: '87 F350 7.3, '93 C2500 6.5, '95 K2500 6.5, '06 K2500HD 6.6, '90 MB 350SDL, Kubota 7510

  2. #2
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    Default

    I wouldn't think so, or maybe it doesn't matter. What is it covering, and is it loose with the engine off? What holds it in place? It looks like it's just a cover. Maybe try some duct tape. If it has no affect on running, crimp it or use some safety wire as a permanent solution. That would drive me nuts, unless it's supposed to move like that.
    1985 Blazer 6.2
    2001 GMC 2500HD D/A
    dmaxmaverick@thedieselpage.com

  3. #3
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    Default

    Quote Originally Posted by DmaxMaverick View Post
    What is it covering,
    Don't really know. I was hoping someone else would.

    and is it loose with the engine off?
    Yes, it rotates freely and moves up and down slightly.
    What holds it in place?
    I think it snaps on. If you look closely near the bottom you can see a tab that is bent inward. I think that is what keeps it from popping off.
    The Constitution needs to be re-read, not re-written!

    If you can't handle Dr. Seuss, how will you handle real life?

    Current oil burners: MB GLK250 BlueTEC, John Deere X758
    New ride: MB GLS450 - most stately
    Gone but not forgotten: '87 F350 7.3, '93 C2500 6.5, '95 K2500 6.5, '06 K2500HD 6.6, '90 MB 350SDL, Kubota 7510

  4. #4
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    Jan 2001
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    New Hampshire - Live Free or Die
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    6,072

    Default

    I just took a closer look at it. If I had to guess, I'd say it is an anti-tamper device for the throttle stop. The black bit sticking out appears to be threaded and have a screw driver slot in the end. There are three tabs near the bottom that prevent it from being removed. It is free to rotate completely around.
    The Constitution needs to be re-read, not re-written!

    If you can't handle Dr. Seuss, how will you handle real life?

    Current oil burners: MB GLK250 BlueTEC, John Deere X758
    New ride: MB GLS450 - most stately
    Gone but not forgotten: '87 F350 7.3, '93 C2500 6.5, '95 K2500 6.5, '06 K2500HD 6.6, '90 MB 350SDL, Kubota 7510

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