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Thread: '86 R80RT gas cap won't come off

  1. #1
    On the Road
    Join Date
    Sep 2009
    Posts
    19

    '86 R80RT gas cap won't come off

    Howdy,

    My 86 R80RT gas cap broke. I was screwing on my gas cap after fueling & I heard a pop/snap sound. Now I can't remove the cap. My guess is the threaded portion separated from the top. How do I get the cap off? Anyone ever had this happen. I'm considering drilling 2 holes, inserting sheet metal screws & trying to unscrew it with a long screwdriver.

  2. #2
    Monza Blue 1974 R90/6
    Join Date
    Dec 2006
    Location
    Delaware
    Posts
    431
    Check this out and see if it helps:

    http://www.bmwmoa.org/forum/showthre...-stuck-gas-cap

    Barron

  3. #3
    Monza Blue 1974 R90/6
    Join Date
    Dec 2006
    Location
    Delaware
    Posts
    431
    The link to Snowbum's article on gas caps (embedded in the above post) is no longer correct.

    Here is the update:

    http://bmwmotorcycletech.info/fuelfltrs&petcocks.htm

    Discussion on fixing stuck (spinning) caps is about half way through the article.

    Barron

  4. #4
    Monza Blue 1974 R90/6
    Join Date
    Dec 2006
    Location
    Delaware
    Posts
    431
    Here is another discussion, from Anton Largiader's excellent web site, on your style of cap:

    http://largiader.com/articles/gascap/

    Anton's site is also mentioned in Snowbum's article.

    Regards,

    Barron

  5. #5
    On the Road
    Join Date
    Sep 2009
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    19
    Awesome, I tried to search the forums and failed, that info is just what I was looking for. I had the same basic idea, I just needed more detail on how the cap was constructed. Thanks for the quick responses!

  6. #6
    Registered User
    Join Date
    May 2006
    Posts
    169
    Heres where I put the screw in 28 years ago.


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