Results 1 to 4 of 4

Thread: Rear Spindle Torque Setting

  1. #1
    Join Date
    Aug 2007
    Posts
    213
    Total Downloaded
    1.13 MB
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Rear Spindle Torque Setting

    One for you Mechanical Engineers out there: When adjusting drive belt tension HD's service manual recommends a rear axle torque setting between 95-105 ft-lbs. However, that's when using their 'Axle Nut Torque Adapter' (designed to avoid removal of the stock silencer to access the nut), which is basically a ring spanner - one end on the nut and your wrench plugs into a square hole in the handle. Now, I've never seen one of these adapters in the flesh, so don't know how long they are, but it prompts this question: Does the 'adapter' act as a torque multiplier and, if so, what is the actual torque applied to the spindle in this configuration i.e. what should the torque wrench be set to when directly connected to the axle nut?

    The most convincing answer wins a free pint at this year's AGM.

    Join the Harley-Davidson Riders Club Great Britain

  2. #2
    Join Date
    Apr 2003
    Posts
    1,804
    Total Downloaded
    49.01 MB
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Re: Rear Spindle Torque Setting

    Do you have a thread gauge Steve? If so just measure the pitch, measure the diameter and look up the torque recommended. Knowing HD I'm sure it won't be any exotic material ...

    Join the Harley-Davidson Riders Club Great Britain

  3. #3
    Join Date
    Dec 2013
    Posts
    1,647
    Total Downloaded
    7.16 MB
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Re: Rear Spindle Torque Setting

    If you mean you are using a crows foot equivalent, then you are extending the length of the torque wrench and that means the torque will increase. You need to turn the extension/spanner adapter at 90 degrees to bring it parallel with where the socket would be. Here's a good video showing how;-

    https://www.youtube.com/watch?v=fBjr9-FDWYw
    Time out of mind

    Join the Harley-Davidson Riders Club Great Britain

  4. #4
    Join Date
    Aug 2007
    Posts
    213
    Total Downloaded
    1.13 MB
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Re: Rear Spindle Torque Setting

    The video explains the principle perfectly, thank you. The key word, as used in the manual, is 'perpendicular'; any offset, and extension of the overall wrench/adapter length increases applied torque at the nut. All is clear. Every day a school day.
    The beer's yours Rod.Click image for larger version. 

Name:	IMG_3413.jpg 
Views:	26 
Size:	101.5 KB 
ID:	34055
    Last edited by dynalow; 12-01-2020 at 03:02 PM.

    Join the Harley-Davidson Riders Club Great Britain

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •