Bolts inside engine - Torque?
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Thread: Bolts inside engine - Torque?

  1. #1
    Member Bjarke's Avatar
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    Bolts inside engine - Torque?

    I'm in the process of doing a triple bypass on my CX500 Custom 1980 and i just changed the cam chain. But i don't know how much torque is needed for the different bolts around the cam chain cover plate, stator, rear engine cover etc.

    I'm also going to change the stator to a G8 (charge only) with Ignitech. Does the ground for the Ignitech have to be mounted near the stator, or is the frame ok?

  2. #2
    Senior Member nolimitz's Avatar
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    If not specified for an individual fastener in FSM. see the general torque section of FSM for torque values of bolt size. diameter not head size.
    1982 GL500i Daily rider
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    Super Moderator DaveF's Avatar
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    Welcome to the forum.

    FSM = Factory Service Manual

    It can be downloaded for free from here.
    1982 GL500I, 1983 GL650, 1983 GL650I

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  5. #4
    Member Bjarke's Avatar
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    Thank you for your responses.
    I guess the "standard torque value" is for aluminium right?
    So the four 6mm bolts holding the cam chain coverplate should only be torqued 8-12nm (5.9-8.8 ft.lb)?

  6. #5
    Super Moderator CXPHREAK's Avatar
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    That's correct.
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    Rider 81 500C, Thingy Born a 78Z. Ozdeluxe born an 80 shadow.

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    Member Bjarke's Avatar
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    Isn't that with dry threads? what if there's oil on the bolt?

  8. #7
    Senior Member izak's Avatar
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    I think , torque is torque ~ dry , wet or oily , it measures the strenght of the power by which 2 objects are pulled together, and it is an indication of the the power that exserts between the nut and it's 'washer'.
    Proud owner - Honda GL 500 D ( Silverwing) , 1981/2 model, unmodified , with non original panniers and top box Also original parallel Keihin carbs with no acceleration pump, plus an autotensioner for the cam chain.

  9. #8
    Member Bjarke's Avatar
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    But less power is needed when the mating surface is oiled, so the bolt will be screwn down futher i think? Which will pull the cover tighter on the engine.

  10. #9
    Super Moderator CXPHREAK's Avatar
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    If concerned, just don't go to the top end of the torque range. It is, after all given as a range.

    I actually use 100 to 105 inch pounds and that is enough safety margin.
    Rebuilding Handlebar Switches

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    Rider 81 500C, Thingy Born a 78Z. Ozdeluxe born an 80 shadow.

    GET A MULTIMETER RTFM I am a CX500. If you maintain me I will run forever.

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  11. #10
    Senior Member izak's Avatar
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    As long as the treads of the bolt are not stripped by torquing too much, one does not have to worry too much I do not think one can under torque an oiled bolt if the wrench is set correctly , but one can surely over torque and break or strip any bolt or nut if one is not too carefull ... DAMHIK...
    Proud owner - Honda GL 500 D ( Silverwing) , 1981/2 model, unmodified , with non original panniers and top box Also original parallel Keihin carbs with no acceleration pump, plus an autotensioner for the cam chain.

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