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Thread: Broken Tabs

  1. #16
    Registered User pettynerd's Avatar
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    My wife has fixed a few side covers with a fiberglass nail repair kit, they looked as good as new and didn't break again.

  2. #17
    Registered User AjaxTheDog's Avatar
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    If you have a very clean and tight fit of the two broken parts I swear by this stuff which is freaking amazing and available for a pittance at Home Depot. If there is old glue residue or the parts do not fit together tightly with no gap then it's not as good as epoxy reinforced with fiberglass or some similar fiber backing. Otherwise I have repaired things with this that were not fixable by any other means, and they did hold together over time.
    loctite-super-glue-681925-64_1000.jpg
    Bill in Highlands Ranch, CO
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  3. #18
    Fortis Fortuna Adiuvat Omega Man's Avatar
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    Quote Originally Posted by AjaxTheDog View Post
    If you have a very clean and tight fit of the two broken parts I swear by this stuff which is freaking amazing and available for a pittance at Home Depot. If there is old glue residue or the parts do not fit together tightly with no gap then it's not as good as epoxy reinforced with fiberglass or some similar fiber backing. Otherwise I have repaired things with this that were not fixable by any other means, and they did hold together over time.
    loctite-super-glue-681925-64_1000.jpg
    Any attachments with adhesive/epoxy/glue can be improved with a “mesh” reinforcement such as fiberglass fabric, even mesh drywall tape. Sorta spreads the stress load.
    I’m a fan of West System G-Flex 2 part epoxy myself.
    OM
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  4. #19
    Quote Originally Posted by cap View Post
    I had an R1150RT on which the trim panels had similar issues. It is a common problem. The most innovative solution I ever saw involved using super-magnets. That is, replacing the plastic pin (which had sheared off) with a disc-shaped magnet, and inserting a bolt into the grommet from the rear. So, the magnet grabbed the tip of the bolt, that was slightly protruding from the grommet.

    The magnet was attached to the plastic panel using epoxy, and it was a good bond.

    Given the type of break in your plastic that holds your grommet -- a cantilever configuration -- you have a large bending moment. I don't think that you will be successful repairing that type of failure without fabricating some kind of gusset. But if you were to attach a steel backing plate to the frame (plumber's tape?), then use the magnet method, you could achieve a secure attachment for that corner of your panel.

    Cap
    I bent and cut a small piece of plastic to reinforce the break and then used Plastaid. It seems to be rock solid.


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  5. #20
    Quote Originally Posted by hwerner View Post
    hi

    I am wondering if anyone has a fix for a broken tab. I bought the 2015 RT used and went to charge the battery. When I put the cover on one the three tab that holds the triangular plastic fell on the floor. It seems that this piece was previously repaired.

    I tried Palasti Aid and while the tab held as soon I applied force it broke again.

    Not really into a $300 part to fix this small thing so I was wondering if anyone has a fix.

    thanks in advance

    HWAttachment 77414Attachment 77415
    Funny, (funny odd not funny Ha Ha) I had the exact same thing happen to me, same year RT too, It really did not take much and mine broke coming off. A few suggestions here but I don't see anyone who actually fixed it or did I mis read something. I like the magnet but I had not thought of reinforcing it with drywall tape or similar, good idea.
    Last edited by usablue; 03-22-2020 at 09:01 PM.

  6. #21
    Quote Originally Posted by usablue View Post
    Funny, (funny odd not funny Ha Ha) I had the exact same thing happen to me, same year RT too, It really did not take much and mine broke coming off. A few suggestions here but I don't see anyone who actually fixed it or did I mis read something. I like the magnet but I had not thought of reinforcing it with drywall tape or similar, good idea.
    Mine is fixed.

    Bent a small piece of plastic to use as a backer to the broken tab. I then used Plastaid to glue it all together.

    I found it helpful to use the triangular battery cover to align the tabs while I glued them and the glue set up.


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  7. #22
    motorcycle cowboy roostershooter's Avatar
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    This stuff works pretty good with ABS plastics. Black in color.
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  8. #23
    Registered User cap's Avatar
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    Quote Originally Posted by roostershooter View Post
    This stuff works pretty good with ABS plastics. Black in color.
    +1 for repairing cracks in body panels. I have used this with fiberglass to repair the backside of body panels. Apply a layer of ABS glue, then tack a piece of fiberglass in place spanning the crack, then apply another generous layer of glue on top of the fiberglass.

    But the strength comes from the fibers, not the glue. So repairs need backing material in addition to the glue, or they will just break again. Ideally, you want to orient the fibers so that they are in tension when the load is applied to the location of the cracked plastic. If I were trying to repair the tab using this method, I would cut some random-strand fiberglass into a narrow strip (like tape), and then use superglue to tack the tab back in place, and then (with the rubber grommet removed) slather the whole tab with abs glue and wrap around the entire circumference of the break with my fiberglass "tape" and re-apply more glue. When it dries, you would need to auger out the hole for the grommet.

  9. #24
    Quote Originally Posted by roostershooter View Post
    This stuff works pretty good with ABS plastics. Black in color.
    Reading the application for this does not sound like the right stuff. Says it is fir non pressure interference fit pipes. A broken tab is surely a polar opposite to that. If anyone has used it with success I stand corrected. I would like to hear somel replies with successful re5ults on this specific problem.

  10. #25
    Quote Originally Posted by hwerner View Post
    Mine is fixed.

    Bent a small piece of plastic to use as a backer to the broken tab. I then used Plastaid to glue it all together.

    I found it helpful to use the triangular battery cover to align the tabs while I glued them and the glue set up.



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    Good for you, I will probably try some form of backer, I don't really follow the battery cover part though.

  11. #26
    Registered User cap's Avatar
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    Quote Originally Posted by usablue View Post
    Reading the application for this does not sound like the right stuff. ...
    ABS glue is often used for plumbing. Generally "black pipe" is for waste lines, and made from ABS plastic. Waste lines are not pressurized, unlike supply lines that use PVC pipes, and use PVC cement. The black ABS adhesive is hard to find anymore, because most projects can use a universal cement that works on both ABS and PVC.

    So, all you really need to know is what type of plastic you are trying to repair. The ABS glue is just a solvent in a binder that temporarily melts the surface of your plastic, and then evaporates and leaves behind a hard skin that is bonded to the original material. If you have a crack, the crack will still be the weak point in the part. But if you bond some fiber to the part, then the strength of the composite fiber-and-binder will be more than the original part.

    Cap

  12. #27
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    Put a dab of silicone grease in the hole in grommet before reinstalling, makes for easier removal next time

  13. #28
    Quote Originally Posted by t6pilot View Post
    Put a dab of silicone grease in the hole in grommet before reinstalling, makes for easier removal next time
    And grind down the sharp edges on the poorly formed parts that insert into the grommets. I have done this on all of our K and F bikes over the past 35 years or so.
    Paul Glaves - "Big Bend", Texas U.S.A
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  14. #29
    Registered User RedCanoe's Avatar
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    Silicone Lubricating Grease

    Not sure what is the best solution, my experience with repairing these are hit or miss but suggest you lubricate the rubber grommets each time you remove any panel like this, I use Super Lube 92003 Silicone Lubricating Grease, 3 oz, available on amazon. Typically these things break because the rubber is dried out and these plastic tabs are not made to have much force applied to them.
    2019 R1250RT Carbon Black

  15. #30
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    I spit on the pegs before I put the panel back on!
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