1. Some members were not receiving emails sent from XJbikes.com. For example: "Forgot your password?" function to reset your password would not send email to some members. I believe this has been resolved now. Please use "Contact Us" form (see page footer link) if you still have email issues. SnoSheriff

    Hello Guest. You have limited privileges and you can't "SEARCH" the forums. Please "Log In" or "Sign Up" for additional functionality. Click HERE to proceed.

Gear lash tool?

Discussion in 'XJ DIY How-To Instructions' started by xjyamaha, Mar 16, 2015.

  1. xjyamaha

    xjyamaha Member

    Messages:
    321
    Likes Received:
    16
    Trophy Points:
    18
    Location:
    Omaha, NE
    Anyone have a makeshift gear lash holder tool for the final drive they've fabricated themselves? The clamp that bolts down and holds the "spindle" where the rear wheel slides on seems a bit hard to find, and expensive when you can find it.
     
    xjyamaha, Mar 16, 2015
    #1
  2. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

    Messages:
    19,647
    Likes Received:
    6,756
    Trophy Points:
    113
    Location:
    The City of Seven Hills
    I was just thinking about this last night, but forgot to post in your other thread. For the gear lash holder tool you can just set the wheel on the ground and mount the final drive to the wheel; that should provide plenty of mass to keep the output spindle from turning while measuring lash at the input shaft. you may have to use sandbags on either side of the final drive housing to keep it from turning, or arrange some woodworking clamps to serve as stops. The tool itself is just a bent peice of flat bar. One end is cut to fit the spline grooves of the spindle, and the other has a hole in it so it can be bolted to the housing. If you don't have the tools to make one then a amchine shop could make one for you (this is the busy season, so there might be a wait).

    The gear holding tool (for the input shaft) looks like it can be fabricated from a spare driveshaft, a short length of tubing, and a short lenght of the remainder of the dives haft for tha handle. If you look at the picture of it in the FSM you will probably see what I'm thinking of.
     
    k-moe, Mar 16, 2015
    #2
  3. xjyamaha

    xjyamaha Member

    Messages:
    321
    Likes Received:
    16
    Trophy Points:
    18
    Location:
    Omaha, NE
    Excellent. Thank you!
     
    xjyamaha, Mar 16, 2015
    #3
  4. xjyamaha

    xjyamaha Member

    Messages:
    321
    Likes Received:
    16
    Trophy Points:
    18
    Location:
    Omaha, NE
    My ingenuity shows itself at times. Used a drill and dremel on an old hinge, placed the wheel flange placed into the final drive output, then used a three bolts to secure it all, with a 50mm bolt and a spacer at the end to ensure the bolt torqued down.

    I measured the lash and get nothing. Should there be the slightest amount? My service manual has a range ( .1-.2mm) so I'm wondering if I need to adjust the shims. I guess it's good there isn't an excessive amount...
     

    Attached Files:

    xjyamaha, Mar 21, 2015
    #4
  5. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

    Messages:
    19,647
    Likes Received:
    6,756
    Trophy Points:
    113
    Location:
    The City of Seven Hills
    You want some lash or ther will be no oil film between the gear faces. You will need to use the information in the service manual to figure what shims you need.

    Out of curiosity, what does your dial indicator and fixture look like?
     
    k-moe, Mar 21, 2015
    #5
  6. xjyamaha

    xjyamaha Member

    Messages:
    321
    Likes Received:
    16
    Trophy Points:
    18
    Location:
    Omaha, NE
    Got a gauge and holder from the Chinese Cheesecake Factory ( Harbor Freight).
     

    Attached Files:

    xjyamaha, Mar 21, 2015
    #6
  7. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

    Messages:
    19,647
    Likes Received:
    6,756
    Trophy Points:
    113
    Location:
    The City of Seven Hills
    Did you check the indicator before using it to measure the gear lash? A dime measures ~1.35mm at the edge thickness. Set the indicator up so the bench top is 0, then lift the base of the indicator enough so you can slide the dime under the tip of the indicator. See what it measures.
     
    k-moe, Mar 21, 2015
    #7
  8. schmuckaholic

    schmuckaholic Well-Known Member

    Messages:
    2,260
    Likes Received:
    42
    Trophy Points:
    48
    Location:
    California
    I am SO stealing that phrase.
     
    schmuckaholic, Mar 22, 2015
    #8
    Franz, jmilliken and xjyamaha like this.
  9. xjyamaha

    xjyamaha Member

    Messages:
    321
    Likes Received:
    16
    Trophy Points:
    18
    Location:
    Omaha, NE
    Haha. I can't claim ownership, but I can agree.
     
    xjyamaha, Mar 22, 2015
    #9

Share This Page