Speed Triple Gearbox Problem.

Discussion in 'Speed Triple' started by Jester Jak, May 11, 2018.

  1. Jester Jak

    Jester Jak New Member

    Sep 11, 2016
    15
    3
    Cornwall
    Just a quick note to explain a problem I have encountered over the past week.

    Background info: Went for a ride and nothing untoward with the bike, on the way back I had problems selecting gears 3&4 and could eventually could not select the other gears without cycling up and done the gearbox until I found one. There were quite a few neutrals whilst trying to find a gear.

    After some research I found out that there was a recall for the 'Detent Arm Spring' and 'Neutral Switch Washer' DVSA Ref: RM/2013/012. None of these applied to my bike so i had to do some old fashioned fault finding. I spoke to Triumph UK headquarters and they pointed me in the correct direction.

    Once I'd stripped the right hand side engine cases off I found that the Detent Arm Roller has become detached! Triumph part number: T1190275

    The loose part had found it was into the sump....luckily!

    Removed the sump to fish out the lost/detached part and ordered a new part!

    Once I find out how to get the picture from my phone to this site I can share them!
     
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  2. Rocker

    Rocker Elite Member

    May 1, 2016
    1,662
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    Sounds like you are lucky:)
    Use a photos site like PhotoBucket load pics to it copy to here
     
  3. Jester Jak

    Jester Jak New Member

    Sep 11, 2016
    15
    3
    Cornwall
    Think I've found how to do it:
    Picture 1: Detent lever in resting place and missing bearing.
    Speed 1.jpeg

    Picture 2: Detent lever with spring removed and missing bearing. Speed 2.jpeg

    Picture 3 : Removed Detent lever (front)
    Speed 3.jpeg

    Picture 4: Removed Detent lever (reverse)
    Speed 4.jpeg
     
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  4. Sprinter

    Sprinter Kinigit

    Aug 17, 2014
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  5. Yorkshireman

    Yorkshireman Crème de la Crème

    Dec 12, 2015
    3,399
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    Glad it wasn’t any more serious. Good work on the investigation, and the pics are helpful. Looks like that bearing is only a press fit into the detent arm. Hope the replacement is a bit tougher.
     
  6. youngy

    youngy Active Member

    Oct 30, 2017
    38
    28
    Peterborough
    What model years are affected and what year is your bike?
     
  7. Jester Jak

    Jester Jak New Member

    Sep 11, 2016
    15
    3
    Cornwall
    My bike is a 2012 with just under 10k on the clock! Im not a hard rider so I cant understand why this has happened.
     
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  8. Jester Jak

    Jester Jak New Member

    Sep 11, 2016
    15
    3
    Cornwall
    I have decided after talking to Triumph and not feeling very confident ( they say that the bearing post is a press fit! ) that the arm I have will be repaired/modified before refitting. I have pressed the bearing post back into the arm and it does not seem to be held in with anything more than an interference fit. I will be peening the ends over and if not happy I will be welding it into place. Luckily I'm and Aircraft Engineer so have access to some very good delicate welders at work!!!

    I will post the results when all the work is done, hopefully this week and before I miss out on all the good weather!!
     
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  9. Jester Jak

    Jester Jak New Member

    Sep 11, 2016
    15
    3
    Cornwall
    I managed to get the bearing post welded at work and there is NO way that it can come out now. Speed fixed.JPG
    As you can see work made a very good job of the welding. We were limited by the thickness of the metal and not being left with a 'Blob' of weld.

    Just awaiting for the new gaskets and clutch nut from Triumph and I can put it all back together again.
     
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  10. Jester Jak

    Jester Jak New Member

    Sep 11, 2016
    15
    3
    Cornwall
    Parts arrived Sat so its all back together. Took it for a test ride Helston to Minehead via Exmoor and back via Dartmoor (300 miles plus). All worked brilliantly and gear changes smoother than a well talced babies bum!
     
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  11. Yorkshireman

    Yorkshireman Crème de la Crème

    Dec 12, 2015
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    Nice work mate, hope the heat from the welding hasn’t compromised the bearing, but you have far more engineering skills than me so I’m confident you have done the job right. Good test ride BTW.
     
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  12. Holty

    Holty New Member

    May 21, 2018
    2
    3
    USA
    I've been having a similar issue on my 2012. Just rolled over 7K miles on it. It will occasionally slip into neutral after a down shift as well. Wonder if this is the issue.
     
  13. Col_C

    Col_C I can't re...Member

    Aug 5, 2015
    1,431
    800
    Cornwall
    Thanks for the excellent info Jak, fingers crossed I never need it! :grinning:
     
  14. Jester Jak

    Jester Jak New Member

    Sep 11, 2016
    15
    3
    Cornwall

    I had the same issues with false neutrals before I had problems selecting all gears. Not saying it is this issue but I know some of the bikes has a recall on the spring connected to the lever I repaired. Triumph UK HQ were very good at informing me if I had any recalls due or if there had been any carried out on my bike.

    If you have access to a 'boroscope' you can go in through the oil filler/dipstick hole and see inside. Behind the clutch basket is where the detent lever sits. It will be very obvious if the roller has become detached.

    If it is the detent lever i can talk you through the process of removing and repairing the lever if you dont have a Haynes manual. The only specialist tool (Home modified spanner) needed is a bent 8mm spanner to remove a bolt from the rear of the sump.
     
  15. Holty

    Holty New Member

    May 21, 2018
    2
    3
    USA
    Thanks Jak. Much appreciated. I did run my vin through Triumphs recall webpage and it came back with nothing. I don't have a bore scope, but I was going to do an oil change anyway. Was thinking I'd just remove the cover and have a look. I'm hoping I can see the detent lever and that bering without having to remove the clutch basket itself. I wonder if the gasket will need replacing if that cover is removed. The bike upshifts just fine, it's the slipping in to neutral when downshifting that is pretty sketchy. I just bought this second hand from a dealer 3 weeks ago, so I have no idea what the history is on it. Appreciate any tips though!
     
  16. Jester Jak

    Jester Jak New Member

    Sep 11, 2016
    15
    3
    Cornwall
    In my experience if it was the detent lever issue you would not only have the false issue downshifting but also upshifting! I would guess that the detent lever is fine.

    Save yourself the hassle of stripping the bike and look at a more common/easier fault than a detached detent lever!

    There are threads about the type of oil used ( on other triumph sites) about problems shifting gear problems. I used Motul in my bike and ut seems a lot smoother than the Castrol that was originally used. could be coincidence though!
     
  17. Holty

    Holty New Member

    May 21, 2018
    2
    3
    USA
    Good point. The dealer I purchased it from isnt a Triumph shop. They claimed an oil change was done but who knows. There's a Honda brand oil filter on it. I picked up the correct Triumph filter and 4 quarts of Mobile 1 10w-40 full synthetic ( the motorcycle "racing" branded stuff). Hopefully that will do the trick.
     
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  18. Ken walburn

    Ken walburn Noble Member

    Jun 28, 2017
    889
    300
    Essex
    Do the dealers in the USA offer a limited time warranty on second hand bikes sold? Over here you would get 3 months warranty
     
  19. Holty

    Holty New Member

    May 21, 2018
    2
    3
    USA
    Yes 90 days. I could take it back there.
     
  20. Ken walburn

    Ken walburn Noble Member

    Jun 28, 2017
    889
    300
    Essex
    Give them the opportunity to fix it. Once they have carried out any type of repair that should then be covered by its own warranty. Why spend time & money repairing yourself when you can get it done for free :)
     
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