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Thread: O-ring purpose?

  1. #1
    Badger
    Join Date
    Jun 2006
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    Twin Falls, ID
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    O-ring purpose?

    I'm working on upgrading the guts of the tank on my 2004 R1150RT. There is an O-ring on the fuel sending unit. It's BMW part 16 14 2 306 645. What is the purpose and/or function of that O-ring? Thanks!
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  2. #2
    Left Coast Rider
    Join Date
    Nov 2011
    Location
    Vancouver, British Columbia, Canada
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    4,534
    I'm suspecting it seals/retains whatever the sending unit plugs into at tbe bottom.

  3. #3
    Registered User bewareboy's Avatar
    Join Date
    Sep 2015
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    Cincinnati, OH
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    36
    Here are a couple of pics from when I replace the in-tank fuel lines on my 04 R11150RT. I believe it is just to hold the vent and filler drain lines, not to seal anything. I did not change the installation and have had no problems since 2015 when I did this.
    DSCI0872.jpgDSCI0869.jpg
    Jim "BewareBoy" Snyder
    Cincinnati, OH
    2004 R1150RT

  4. #4
    Badger
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    Jun 2006
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    Twin Falls, ID
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    Quote Originally Posted by bewareboy View Post
    Here are a couple of pics from when I replace the in-tank fuel lines on my 04 R11150RT. I believe it is just to hold the vent and filler drain lines, not to seal anything. I did not change the installation and have had no problems since 2015 when I did this.
    DSCI0872.jpgDSCI0869.jpg
    Thanks, Jim. That makes sense. I should have been more attentive to the configuration when I pulled everything. Mike.

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