R1200GSw LC Wethead Final Drive change and Spline Lube Pictorial!

Discussion in 'GS Boxers' started by JimVonBaden, Mar 11, 2016.

  1. JimVonBaden

    JimVonBaden "Cool" Aid! Supporter

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    Once in a while the circlip on the trans end doesn't catch. I you see it coming you can slide it back on.
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  2. bigjohnsd

    bigjohnsd '14 BMW R1200 GS Adv Supporter

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    Based upon my recent experience I'd say you have a less than 1% chance of getting the front Drive shaft spline back onto the transmission with the rear spline connected.

    In several earlier posts, JVB talks about how he had to Pry off the rear spline using a chisel as a wedge.

    If it were me, I would soak the hell out of the rear spline joint with whatever penetrating oil is your favorite.
    I'd whack it from all angles with a dead blow hammer and see if I couldn't get it to come loose.

    Soak, whack, pull and repeat. It will eventually come free.

    Your local Autozone will loan you a slide hammer. You can use the slide hammer and several links of chain through the joint to get a solid whack on the rear joint. That is how I had to get my front joint off. It is hard to see the links of chain through the u-joint in this picture but it is all I have. The impact of the slide hammer helps the penetrating oil work its way into the splined joint. 20190430_134857 slide hammer.jpg
  3. JimVonBaden

    JimVonBaden "Cool" Aid! Supporter

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    Yeah, you would frustrate the hell out of yourself even trying, even with two people.
  4. Jim-Mer

    Jim-Mer Slowing Down

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    Tried it as well. no chance. Dropped the pumpkin, placed a piece of wood on the back of the u-joint, and a "tap" with a dead blow hammer and it popped in place.
    JimVonBaden likes this.
  5. YourPal

    YourPal Been here awhile

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    I did drop the pumpkin and it slid off. I was unable to get the front back on so tomorrow I will try again with a friends help and some painters tape. Then I should be able to get it all back together.
  6. JimVonBaden

    JimVonBaden "Cool" Aid! Supporter

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    I can do it alone. It is fidgety. I use a piece of wire to hold the front up and lined up with the shaft, then push with my left hand. Not easy, but doable.
  7. YourPal

    YourPal Been here awhile

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    I had to work yesterday so no tinkering on the bike.
    Today a friend came over to help and it went much better.
    The key for getting the DS on the output shaft was .
    1) Using the tape.
    2) Lining it up and keeping the FD end held up.
    3) Having the bike in neutral.
    4)After the splines are lines up, slowly rotate the
    DS from the FD end and tap with rubber mallet.
    This was the part that I was missing on Friday.
    The slight angle of the DS needed to be worked on past that slight off camber section and then
    It slid on and clipped into place.
    I used the same rotation technique when putting the FD on the DS. After lining it up use slight upward pressure on the FD pumpkin while slowly rotating the DS. I was on the floor with my knee pushing up under the pumpkin while rotating the DS .
    Sometimes you just have to step back, take a break, don't panic ( like I started to) and come back to it later.
    Thank you all for the help especially JVB.
    Now to re-watch the brake fluid flush video and finish this project.
  8. YourPal

    YourPal Been here awhile

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    One last question. What does this do? I assume that's where I fell out of because it's the only spot that it seems to fit . 20190505_121220.jpg
  9. YourPal

    YourPal Been here awhile

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    here is a better picture of where I think it goes. I assume it goes over this whole because it would be full of mud if nothing was protecting it. What is this hole for?
    20190505_145623.jpg 20190505_145920.jpg
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  10. toowoomba

    toowoomba Certified BMW Therapist MCCL Supporter

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  11. miker325

    miker325 Been here awhile

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    That's a breather hole for the final drive, @toowoomba. Put the plug in and you're good to go.
  12. toowoomba

    toowoomba Certified BMW Therapist MCCL Supporter

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    Thanks @miker325 - My breather plug was never out - I posted the picture and the link to the fiche for @YourPal - He was the one asking about where it went and what it did. He got it sorted and will soon be screaming around on his GSA scaring dogs, children and other...
    JimVonBaden likes this.
  13. marcmarc

    marcmarc Adventurer

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    2018 Rallye, 37k kilometers, first ever disassembly. Before taking the picture I've already removed some lithium grease from the casing. Some paint is already flaking..

    IMG_0583.jpg
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  14. Delmaestro

    Delmaestro Adventurer

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    A01E9A0E-FD76-4145-A11A-FFCF42CDFA82.jpeg View attachment 1676483
    I did the hole. 3 mm. Like the pic. No rust anymore. The water cant get in by the hole cause its too small, but effective in draining the water.
  15. bigjohnsd

    bigjohnsd '14 BMW R1200 GS Adv Supporter

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    I was thinking the same sort of drain with a 90-degree elbow facing to the rear inserted into the hole.
  16. Delmaestro

    Delmaestro Adventurer

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    Like this
  17. Delmaestro

    Delmaestro Adventurer

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    This is an excellent ideia. An improvement.
  18. Blissed

    Blissed Been here awhile

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    Can’t see the hole. Where is it in the picture?
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  19. bigjohnsd

    bigjohnsd '14 BMW R1200 GS Adv Supporter

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    hole 2_LI.jpg
  20. Blissed

    Blissed Been here awhile

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