Author [NL] [FR] [ES] [DE] [SE] [IT] Fork Top Cap Socket  (Read 6613 times)

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  • Offline Spanish Andy

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    Offline Spanish Andy

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    Fork Top Cap Socket
    on: Jun 14, 2022, 05.33 pm
    Jun 14, 2022, 05.33 pm
    I'm about to change the oil in the forks and I've seen in the manual that Triumph specify a special socket : T3880643 . How "special" is this socket ? Has anyone used an ordinary socket to do the job, and if so what size. I'm reluctant to pay the over 100 (shipped to Spain) for a big socket. If the there is no way around having the socket, I'll probably drop the forks and take them to the shop to change the oil there whilst I get on with greasing the head bearings.   

    Thanks !

  • Offline Coconut   gb

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    Re: Fork Top Cap Socket
    Reply #1 on: Jun 14, 2022, 06.28 pm
    Jun 14, 2022, 06.28 pm
    I don't have that particular Service Tool, but the drawing of it
    seems to be a large socket with a separate Insert :



    The Section of the Fork Top Caps, where the tool engages,
    is relatively thin compared to a standard "Nut" of the same size,
    and the Insert is likely to be machined to a fine tolerance to fit the cap perfectly.

    The Service Manual says that use of the tool is required "to prevent damage to the Top Cap",
    which might happen if a standard socket tool were used and it slipped  :138: !

    Cheers  :821:


     

  • Offline digital   es

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    Offline digital

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    Re: Fork Top Cap Socket
    Reply #2 on: Jun 14, 2022, 08.50 pm
    Jun 14, 2022, 08.50 pm
    I have changed the oil in the Trophy forks countless times and I have never needed that tool...
    Only motorcyclists know why dogs stick their head out the car window.


  • Offline Spanish Andy

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    Offline Spanish Andy

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    Re: Fork Top Cap Socket
    Reply #3 on: Jun 14, 2022, 10.17 pm
    Jun 14, 2022, 10.17 pm
    *Originally Posted by digital [+]
    I have changed the oil in the Trophy forks countless times and I have never needed that tool...


    What size is the socket ?

  • Offline Spanish Andy

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    Offline Spanish Andy

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    Re: Fork Top Cap Socket
    Reply #4 on: Jun 14, 2022, 10.18 pm
    Jun 14, 2022, 10.18 pm
    *Originally Posted by Coconut [+]


    The Service Manual says that use of the tool is required "to prevent damage to the Top Cap",
    which might happen if a standard socket tool were used and it slipped  :138: !





    Yes easily done and painful on the pocket .... and knuckles :-) 

  • Offline digital   es

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    Re: Fork Top Cap Socket
    Reply #5 on: Jun 14, 2022, 10.50 pm
    Jun 14, 2022, 10.50 pm
    Replace fork oil. It is very simple and not complicated at all.
    Another very different thing would be to replace the fork seals.

    The first thing you should do before removing the forks from your motorcycle is to loosen the top plugs on each fork.

    The next thing I think you already know .... Position the front of the bike to work on it and remove the forks.

    As you will have loosened the fork plugs, simply once you have them out, you will simply have to stretch the fork to its final travel and you will be able to remove its plugs very easily.

    Once the plugs have been removed, simply discard the oil and place the new oil with (always the fork fully stretched) and the plug will enter only with the hand, to tighten it with the necessary torque. You carry out the same operation as when it was loosened, but this time it will only be to tighten.

    The most important thing is that you put just the necessary oil level, because if you go over the level, you will notice that the bike bounces like a ball.
    Only motorcyclists know why dogs stick their head out the car window.


  • Offline Spanish Andy

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    Re: Fork Top Cap Socket
    Reply #6 on: Jun 15, 2022, 08.15 am
    Jun 15, 2022, 08.15 am
    *Originally Posted by digital [+]

    The first thing you should do before removing the forks from your motorcycle is to loosen the top plugs on each fork.


    Digital thanks. What size is the socket that you used to remove the "top plugs/caps", did you put electrical tape around or other method to protect the plugs/caps ?   

  • Offline digital   es

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    Re: Fork Top Cap Socket
    Reply #7 on: Jun 15, 2022, 04.32 pm
    Jun 15, 2022, 04.32 pm
    50 mm. To put that onion you must loosen the handlebar, otherwise the glass of 50mm will not fit.

    Only motorcyclists know why dogs stick their head out the car window.


     



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