Author Topic: Rear axle extension tool.  (Read 6847 times)

umpire3

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Rear axle extension tool.
« on: Oct 24, 2014, 11:43:41 am »
For those of you who have V&H Big Radius exhaust or some other after market exhaust that forces you to remove the exhaust to get at the rear axle nut, here's a tool that should help.  The parts cost less than $15.

Parts:
  • 1-1/2" (W) x 1/8" (T) x 7" (L) steel bar; Homedepot ~ $9.
  • 1/2 in. drive 27mm deep wall impact socket; Harbor Freight.

Fab:
  • Cut 1/4" off the hex end of the socket.
  • Cut the next piece of the socket 3/4"* from the same end.
  • Cut the steel bar 7" long.
  • Orient the hex so that one of its sides is parallel with one of the square drive's sides.
  • Mount the two halves 5" center-to-center at opposite ends and sides on the 7" steel bar.
  • Weld.
* = Check the clearance between the nut/shaft and muffler you need in order to slip the socket end on the nut.
** = There isn't enough clearance between the stock mufflers and nut for this tool to work.

Operation:
  • Mount the tool.
  • Connect the torque wrench inline with the tool.
  • Calculate the new torque required using the formula shown in the picture.

Or:

  • Mount the tool.
  • Connect the torque wrench 90* to the tool.
  • Torque to the required specification - 110 ft/lbs.
« Last Edit: Oct 24, 2014, 12:19:31 pm by umpire3 »

RoadStarRaider

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    Re: Rear axle extension tool.
    « Reply #1 on: Oct 24, 2014, 11:52:45 am »
    This is now a "sticky"   :thumbs:

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    Re: Rear axle extension tool.
    « Reply #2 on: Oct 24, 2014, 01:17:38 pm »
    Thanks for sharing!  :thumbs:
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      xmanrigger

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      Re: Rear axle extension tool.
      « Reply #3 on: Oct 24, 2014, 04:04:13 pm »
      Thanks umpire3. Definitely fabbin' one of these up first opportunity.

      Now, what is the trick for the slack adjuster? I still have to remove rear mounting bolts and head bolts with V&H 2-1 to adjust them.

      2012 Raider / V&H Big Radius 2-1 / Cobra Fi2000 DFP / Baron Stealth Big Air / Avon AV72 Cobra Rear Tire /

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      Re: Rear axle extension tool.
      « Reply #4 on: Oct 25, 2014, 03:07:03 am »
      Thanks umpire3. Definitely fabbin' one of these up first opportunity.

      Now, what is the trick for the slack adjuster? I still have to remove rear mounting bolts and head bolts with V&H 2-1 to adjust them.

      I just take off the heat shield and I can get to it without too much problem.

      umpire3

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      Re: Rear axle extension tool.
      « Reply #5 on: Oct 25, 2014, 12:30:14 pm »
      Thanks umpire3. Definitely fabbin' one of these up first opportunity.

      Now, what is the trick for the slack adjuster? I still have to remove rear mounting bolts and head bolts with V&H 2-1 to adjust them.

      No tricks on the adjuster bolt or nut.  I just use a claw foot 12mm with a long extension.  Thought about:

      • Bending an open end wrench on the long axis.
      • Bending an open end wrench on the short axis.
      • Drilling holes on the flats of the nut and bolt and use a dowel pin to turn and tighten then.


      RuneRaider

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      Re: Rear axle extension tool.
      « Reply #6 on: Oct 25, 2014, 02:21:58 pm »
      Very cool ideas. Thanks!
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      Zxdave

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      Re: Rear axle extension tool.
      « Reply #7 on: Oct 25, 2014, 02:27:00 pm »
      Pretty cool idea ! I have v&h 2into1 also , before the air ride I would just have my 16yr old boy sit on bike and it compressed enuf to get to everything , but now with air-ride I can lower it down to get to stuff
      Lean till it grinds , then lean some more ..

      Tail dragger

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      Re: Rear axle extension tool.
      « Reply #8 on: Apr 10, 2015, 08:09:51 pm »
      I just cut down a 12 mm open end wrench to 3 inches to give me clearance.  Don't have to do anything to loosen or tighten the axle bolt.

      xmanrigger

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      Re: Rear axle extension tool.
      « Reply #9 on: Apr 29, 2017, 12:45:41 pm »
      Just wondering if anyone here actually torques the rear axle nut to 110 ft/lbs. I have a quality torque wrench, and 80 ft/lbs almost seems to much. I have never and will never tighten it to 110 ft/lbs, or even 100 ft/lbs. Never had an issue with the nut backing off.

      2012 Raider / V&H Big Radius 2-1 / Cobra Fi2000 DFP / Baron Stealth Big Air / Avon AV72 Cobra Rear Tire /

      RonKy

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      Re: Rear axle extension tool.
      « Reply #10 on: Apr 29, 2017, 05:55:57 pm »
      I have the V&H 2 into 1.  Before I lowered the bike, I just removed the rear skin.  Now I just lay a rag on the exhaust pipe and take the nut off with a ratchet.  Close fit but works fine.
      Just ordered my 13th set of tires for the Raider and I have always torqued the wheels back to spec. 
      « Last Edit: Apr 29, 2017, 06:00:12 pm by RonKy »

       

      umpire3

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      Re: Rear axle extension tool.
      « Reply #11 on: Apr 29, 2017, 06:39:28 pm »
      Just wondering if anyone here actually torques the rear axle nut to 110 ft/lbs. I have a quality torque wrench, and 80 ft/lbs almost seems to much. I have never and will never tighten it to 110 ft/lbs, or even 100 ft/lbs. Never had an issue with the nut backing off.

      The purpose of torquing the nut to factory specs is: to collapse the dampers in the rear hub without breaking the webbing between each piece.

      xmanrigger

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      Re: Rear axle extension tool.
      « Reply #12 on: Apr 30, 2017, 11:51:43 am »
      Just wondering if anyone here actually torques the rear axle nut to 110 ft/lbs. I have a quality torque wrench, and 80 ft/lbs almost seems to much. I have never and will never tighten it to 110 ft/lbs, or even 100 ft/lbs. Never had an issue with the nut backing off.

      The purpose of torquing the nut to factory specs is: to collapse the dampers in the rear hub without breaking the webbing between each piece.

      Hmmm. But have you ever actually torqued to 110 ft/lbs? Like I said, I got to 80 lbs and that seemed way over tight. Not the top of the line torque wrench (Westward), but it is a fairly decent one, so I kinda trust it. Maybe today I will loosen the axle nut and tighten all the way to 110lbs.

      2012 Raider / V&H Big Radius 2-1 / Cobra Fi2000 DFP / Baron Stealth Big Air / Avon AV72 Cobra Rear Tire /

      the urban legend

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      Re: Rear axle extension tool.
      « Reply #13 on: Apr 30, 2017, 06:29:15 pm »
      I tighten to 110 ft/lbs every time I re-install the rear wheel.Yes it's tight,but that's what the manual says so that's what I do.
      I'd rather die on a motorcycle than live without one.

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      RonKy

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      Re: Rear axle extension tool.
      « Reply #14 on: Apr 30, 2017, 08:03:55 pm »
      Yep...same here.  110 ft. lbs. every time.
      « Last Edit: Apr 30, 2017, 08:07:04 pm by RonKy »