Muffler's Falling Off

Discussion in 'Technical Help' started by capt, Apr 27, 2020.

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  1. capt

    capt Elite Member

    May 8, 2016
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    #1 capt, Apr 27, 2020
    Last edited: Apr 27, 2020
    IMG_20200427_094632.jpg IMG_20200427_094619.jpg Hi All, went for a ride yesterday and on my return found my right hand muffler was falling off.

    1998 Triumph Trident/Sprint Executive 22 years old and still original mufflers, 96,600 odd klms.

    Any Idea's on how to refit these anchor points ?

    First image full separation , second image was how I found it !
    @dilligaf @Dozers Dad ...
    Any suggestions on how to re secure it , left hand side has only one bolt holding it too ... !
     
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  2. capt

    capt Elite Member

    May 8, 2016
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    Well , an hour later and IMG_20200427_105607.jpg
    From the battle scars ... it has been apart before ! The cut's/welds are hidden by the chrome cover which is riveted on the mufflers.
     
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  3. Dartplayer

    Dartplayer Crème de la Crème

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    #3 Dartplayer, Apr 27, 2020
    Last edited: Apr 27, 2020
    Hi Captain, the hole in the exhaust uses a pressed nut (Similar to a rivet with internal thread) to attach too. Yours has pulled out.
    If you know someone with a press nut tool, you can refit and reattach with a new bolt.
    Alternative, although not beautiful, is revit a bracket on with sealer to cover the hole and bolt to existing bracket OR
    Replace with new, although they must still dampen or you would have thought of that option.
    Best of luck mate :cool:
     
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  4. dilligaf

    dilligaf Guest

    It could be welded back on but it wouldn’t be pretty :confused:
     
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  5. Callumity

    Callumity Elite Member

    Feb 25, 2017
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    #5 Callumity, Apr 27, 2020
    Last edited: Apr 27, 2020
    A rivnut is the obvious answer but even in Oz I suspect that corrosion may have eroded and weakened the surrounding material such that a rivnut would not hold. If that is the case then apply a little lateral thinking.....
    Fixings for plasterboard/drywall like this could just give you a cheap, simple solution- a cavity wall anchor.

    5EC5B7CB-53AD-4431-A0E4-1BE367CA0FAF.jpeg

    C7762622-E74A-4010-BEA1-0C18947EFF1D.jpeg
     
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  6. joe mc donald

    Subscriber

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    Capt
    You can also get those inserts if you search. I have done it before and when inserting them I used superglue in the recesses then tighten them to expand them a little and they should hold.
    Regards
    Joe.
     
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  7. littleade

    littleade The only sane one here
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    Especially if you did it:laughing:
     
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  8. capt

    capt Elite Member

    May 8, 2016
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    IMG_20200428_111937.jpg
    Sorted spoke to a good mate :):p

    And he had a Riv-Nut kit !!

    Otherwise it would be a wait until district lock down was over and a trip to Bunbury where the supplier is located ... !

    Phew so happy :grinning::joy::grinning::joy:.

    Will still cut and repack them but no rush now.

    cheers capt IMG_20200428_111937.jpg
     
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  9. Tigcraft

    Tigcraft Not Well Known Member
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    It’s too much weight for a rivnut. That must have been from someone’s modification as a silencer weights an awful lot and doesn’t have the structural mounting areas like for example a household shelf ie one at either end so the stresses are all overhung and want to be welded back at some point note. That’s why you lost it in the first place.
     
  10. capt

    capt Elite Member

    May 8, 2016
    2,393
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    The original riv-nuts weren't properly installed , they hadn't been crushed/compressed enough . Took the one that had pulled out, it was barely compressed at all ! Hopefully the amount of crush we put on it (pinched the bolt threads) so it was quite a bit harder to bolt up...
     
  11. Tiglet

    Tiglet Vintage Member
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    If the riv-nuts doesn’t hold get someone who can braze to reattach the bracket but you’ll have to get the bracket and the repair area clean.
     
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  12. topbanana0

    topbanana0 Well-Known Member

    Mar 27, 2016
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  13. capt

    capt Elite Member

    May 8, 2016
    2,393
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    Well riv-nuts holding up well. 400 odd km on them so far , two up and solo ride's and no show of failing.
    Just wish my indicators would turn up.
    Plastics are toast after 22yrs , this was my poor girl after today's ride... IMG_20200503_214520_229.jpg
    The right has been glued on about 5 times , now the left is farked.

    cheers capt
     
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