Author [NL] [FR] [ES] [DE] [SE] [IT] Topic: Camshaft sprocket screw tightening  (Read 334 times)

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  • Offline SOHUTAA   fr

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    Offline SOHUTAA

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    Camshaft sprocket screw tightening
    on: Jan 12, 2022, 08.06 pm
    Jan 12, 2022, 08.06 pm

    After checking the valve clearances, which at 80,000 km did not require any replacement of pads, I proceeded to adjust the sprockets of the camshafts according to the procedure recommended by Triumph.

    No problem, with the necessary tools, but my doubt comes from the tightening torque of the screws of these pinions.
    The technical document announces a tightening of 10N / m with thread lock.
    I find that weak, what do you think ??



  • Online Stevie.P   gb

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    Re: Camshaft sprocket screw tightening
    Reply #1 on: Jan 12, 2022, 08.18 pm
    Jan 12, 2022, 08.18 pm
    I've also done my camshaft timing today but I used the figure in the Haynes manual which are shown as:
    10Nm for the (non-slotted) sprockets up to engine No. 602077
    and
    22Nm for the slotted sprockets from engine No. 602078
     :028:
    Also owned my 1979 Bonnie T140E from new!
    We don't stop playing because we grow old .. WE GROW OLD BECAUSE WE STOP PLAYING!!!

  • Online Stevie.P   gb

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    Re: Camshaft sprocket screw tightening
    Reply #2 on: Jan 12, 2022, 08.27 pm
    Jan 12, 2022, 08.27 pm
    .... my 24k service kit came with 4 new pre-threadlock applied screws for the cam sprockets. I actually did them in 2 stages, 15Nm then 22Nm though the Haynes manual just says tighten to specified torque figure. :028:
    Also owned my 1979 Bonnie T140E from new!
    We don't stop playing because we grow old .. WE GROW OLD BECAUSE WE STOP PLAYING!!!

  • Offline SOHUTAA   fr

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    Re: Camshaft sprocket screw tightening
    Reply #3 on: Jan 13, 2022, 06.43 pm
    Jan 13, 2022, 06.43 pm
    Indeed, you are right !!!  :138:

    After reading the technical documentation, the tightening is indeed 22N / m, and with the addition of thread lock.

    I have to start over. . .    :028:

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    Re: Camshaft sprocket screw tightening
    Reply #4 on: Jan 13, 2022, 11.02 pm
    Jan 13, 2022, 11.02 pm
    I did wonder what torque figure was shown just off the left of your pic for the fixed sprockets. I suspect also 10Nm and that is a typo error showing against the slotted sprockets ... at least you queried it. :028:
    Also owned my 1979 Bonnie T140E from new!
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  • Offline SOHUTAA   fr

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    Offline SOHUTAA

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    Re: Camshaft sprocket screw tightening
    Reply #5 on: Jan 14, 2022, 02.52 am
    Jan 14, 2022, 02.52 am

    For the 2 types of pinions, the documentation gives 10N / m !!!!   :138:

    I have to find myself in Pdf, the original documentation in English for the T800> 2015. . .

    I will make a request on the forum.