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Grease Those Splines Boys!!!

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  • #1

    Grease Those Splines Boys!!!

    That zerk fitting is useless.....





    49K on the bike (the XJ I bought), plenty of grease in there (gobs inside the shaft tube) but it wasn't getting to where it needed to be. Looks like a good idea to pull the FD and manually lube these, ya think?

    The splines inside the coupler are just as bad; too bad, the FD seems fine otherwise.. Time to go digging in the spares.
    Fast, Cheap, Reliable... Pick any two

    '78E original owner - resto project
    '78E ???? owner - Modder project FJ forks, 4-piston calipers F/R, 160/80-16 rear tire
    '82 XJ rebuild project
    '80SG restified, red SOLD
    '79F parts...
    '81H more parts...

    Other current bikes:
    '93 XL1200 Anniversary Sportster 85RWHP
    '86 XL883/1200 Chopper
    '82 XL1000 w/1450cc Buell, Baker 6-speed, in-progress project
    Cage: '13 Mustang GT/CS with a few 'custom' touches
    Yep, can't leave nuthin' alone...
    Tags: None
  • #2
    Holy smokes. Could you give a little more detail on where these gears are? Far as I know the final drive is lubed by the gear oil so I must be missing something.
    '79 XS11 Special, fork gaiters, Uni pods, 45 pilots, 140 mains, ditched the octy, solo seat, T kat fork brace

    Purrs like a kitten, runs like a scalded cat

    Comment

    • #3
      That's the driveshaft splines that go into the coupler on the final drive. They're supposed to get greased by squirting grease into that zerk fitting on the swingarm right in front of the FD. Doesn't work too well....
      Fast, Cheap, Reliable... Pick any two

      '78E original owner - resto project
      '78E ???? owner - Modder project FJ forks, 4-piston calipers F/R, 160/80-16 rear tire
      '82 XJ rebuild project
      '80SG restified, red SOLD
      '79F parts...
      '81H more parts...

      Other current bikes:
      '93 XL1200 Anniversary Sportster 85RWHP
      '86 XL883/1200 Chopper
      '82 XL1000 w/1450cc Buell, Baker 6-speed, in-progress project
      Cage: '13 Mustang GT/CS with a few 'custom' touches
      Yep, can't leave nuthin' alone...

      Comment

      • #4
        The face width of the gears is fairly small considering you could be putting 90hp on them. I was surprised when I did the final swap.
        1970? Honda Z50... gone
        1974? Yamaha 100 Enduro... gone
        1974 Honda CB200... gone
        1981 Yamaha Virago 750... gone
        1993 Honda Shadow 1100... gone
        2008 Honda VTX 1800F
        1982 Yamaha XJ1100J w/850 final, Raptor ACCT
        1979 Yamaha XS1100SF "Chewey" Raptor ACCT

        http://www.johnsoldiron.com

        Comment

        • #5
          Those are the FD end of the drive shaft. They slide into the splined coupler of the FD. Which lives in the ballooned out end of the swingarm where the FD connects. That is where the grease (zerk) fitting is Steve referred to.

          That thing still had to be beat pretty hard to get that tore up. But the corosion shows how little grease got in there for sure.
          Life is what happens while your planning everything else!

          When your work speaks for itself, don't interrupt.

          81 XS1100 Special - Humpty Dumpty
          80 XS1100 Special - Project Resurrection


          Previously owned
          93 GSX600F
          80 XS1100 Special - Ruby
          81 XS1100 Special
          81 CB750 C
          80 CB750 C
          78 XS750

          Comment

          • #6
            That is nasty looking!!
            Nathan
            KD9ARL

            μολὼν λαβέ

            1978 XS1100E
            K&N Filter
            #45 pilot Jet, #137.5 Main Jet
            OEM Exhaust
            ATK Fork Brace
            LED Dash lights
            Ammeter, Oil Pressure, Oil Temp, and Volt Meters
            Green Monster Coils
            SS Brake Lines
            Vision 550 Auto Tensioner

            In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

            Theodore Roosevelt

            Comment

            • #7
              Ebay is full of those driveshafts starting at $9 so they seem pretty plentiful, not the end of the world if it wears out.
              2H7 (79) owned since '89
              3H3 owned since '06

              "If it ain't broke, modify it"

              ☮

              Comment

              • #8
                I took my zerk fitting off and blanked it off. It's completely useless. The FD needs greasing manually, 100% sure...
                XS1100F 1980 European model. Standard. Dyna coils. Iridium plugs. XS750 final drive (sometimes). Micron fork brace. Progressive front springs. Geezer regulator/rectifier. Stainless 4 into 2 exhaust. Auto CCT (Venturer 1300) SOLD. New project now on the go. 1980 European model.

                Comment

                • #9
                  Funny, that's the next thing on my to do list after I get back from a family reunion. I already drained the final and middle. Any tips I need to know beyond what's in the Clymer manual before I grease this puppy manually?
                  Last edited by BobBaldy; 05-26-2012, 02:55 AM. Reason: added "manually"
                  80 G, Spaghetti pipes, K&N in stock airbox, Galfer S/S lines.

                  It has been my experience that folks who have no vices have very few virtues. -Abraham Lincoln

                  http://80xselevenrebuild.blogspot.com/

                  Comment

                  • #10
                    I know you are replacing that shaft but for it to be worn that bad then the splines in the final drive have to have wear also. Put a good shaft against it and even greased it will wear quickly. Thanks for putting the evidence in peoples face, pictures are worth a thousand words and maybe seeing is believing.
                    To fix the problem one should not make more assumptions than the minimum needed.

                    Rodan
                    https://www.youtube.com/watch?v=khm6...liHntN91DHjHiS
                    1980 G Silverbird
                    Original Yamaha Fairfing and Bags
                    1198 Overbore kit
                    Grizzly 660 ACCT
                    Barnett Clutch Springs
                    R1 Clutch Fiber Plates
                    122.5 Main Jets
                    ACCT Mod
                    Mac 4-2 Flare Tips
                    Antivibe Bar ends
                    Rear trunk add-on
                    http://s1184.photobucket.com/albums/z329/viperron1/

                    Comment

                    • #11
                      I would bet that the FD spline steel is harder than the driveshaft steel and did not wear much at all.
                      2H7 (79) owned since '89
                      3H3 owned since '06

                      "If it ain't broke, modify it"

                      ☮

                      Comment

                      • #12
                        You would lose that bet.....

                        Fast, Cheap, Reliable... Pick any two

                        '78E original owner - resto project
                        '78E ???? owner - Modder project FJ forks, 4-piston calipers F/R, 160/80-16 rear tire
                        '82 XJ rebuild project
                        '80SG restified, red SOLD
                        '79F parts...
                        '81H more parts...

                        Other current bikes:
                        '93 XL1200 Anniversary Sportster 85RWHP
                        '86 XL883/1200 Chopper
                        '82 XL1000 w/1450cc Buell, Baker 6-speed, in-progress project
                        Cage: '13 Mustang GT/CS with a few 'custom' touches
                        Yep, can't leave nuthin' alone...

                        Comment

                        • #13
                          That is insane!
                          Nathan
                          KD9ARL

                          μολὼν λαβέ

                          1978 XS1100E
                          K&N Filter
                          #45 pilot Jet, #137.5 Main Jet
                          OEM Exhaust
                          ATK Fork Brace
                          LED Dash lights
                          Ammeter, Oil Pressure, Oil Temp, and Volt Meters
                          Green Monster Coils
                          SS Brake Lines
                          Vision 550 Auto Tensioner

                          In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

                          Theodore Roosevelt

                          Comment

                          • #14
                            the wear looks alot like the speedo drive on my bike that looked like it hasn't had any grease in it for a while.
                            '79 XS11SF

                            Comment

                            • #15
                              Steve, that is pretty bad wear, I never would have thought. OK, 11 FD's are a dime a dozen tho. That bike must have had one sloppy(er) drive train.
                              Last edited by bikerphil; 05-26-2012, 04:01 PM.
                              2H7 (79) owned since '89
                              3H3 owned since '06

                              "If it ain't broke, modify it"

                              ☮

                              Comment

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