WUMPA - my DMC Dauntless 1150GS Adventure rig

Discussion in 'Hacks' started by DRONE, Apr 26, 2011.

  1. Dan Alexander

    Dan Alexander Ride Far - Ride Fast

    Joined:
    Nov 8, 2003
    Oddometer:
    7,737
    Location:
    Now only Montreal
  2. AceRph

    AceRph Affluenza Free! Administrator

    Joined:
    Jan 12, 2003
    Oddometer:
    24,707
    Location:
    Where the stupidest people on earth run things
    Geez Ned. Thumbs up indeed!

    I have to apologize. I did not realize that WUMPA got crashed. I'm glad Kirby's ok & you're here to post & send me PMs and stuff like that.
  3. Mr. Annoying

    Mr. Annoying B.F.aC.G

    Joined:
    Sep 1, 2004
    Oddometer:
    1,445
    Location:
    south west CT. almost N.Y.
    so glad you survived Sorry to see your awesome rig gone, please don't walk away, I understand the need to keep Partners happy but I also know of the need to fill other parts of your life with joy

    I have a very low mileage R1150GS I think even with the demise of your rig I'm gonna hack it
  4. GypsyWriter

    GypsyWriter Sarah

    Joined:
    Aug 28, 2009
    Oddometer:
    1,822
    Location:
    Visalia CA
    Earlier this week I helped Eric out with his "Sit Stay Ride" sidecar dog documentary. We talked a lot about you, Drone, how we both thought you were pretty full of awesome. :thumb Well, when I said that I didn't know if you'd ever get back to sidecaring, he may have mentioned a sneak peak at your garage and a new project. :clap:freaky

    I realize you're one to hold all your cards close to the chest, and love doing dramatic reveals, but could you throw us a bone? Pretty please? Or do I need to head up that way and track you down just to see what you've got up your sleeve? :lol3 :deal
  5. boxertwin

    boxertwin Long timer

    Joined:
    Mar 27, 2003
    Oddometer:
    1,023
    Location:
    Idaho

    Good show, that! Outstanding Ned.
  6. WU7X

    WU7X The Old Fart

    Joined:
    Aug 21, 2007
    Oddometer:
    2,124
    Location:
    Spoke Can, WA
    You da MAN, Ned! Love those beautiful smiles! What a stud you are. :wink:
  7. tony the tiger

    tony the tiger Long timer

    Joined:
    Jan 4, 2008
    Oddometer:
    10,782
    Location:
    secret owner of a Parmesan cheese factory
    :lol3 Missed that one...
  8. boxertwin

    boxertwin Long timer

    Joined:
    Mar 27, 2003
    Oddometer:
    1,023
    Location:
    Idaho
    I wonder if Queen Bee has seen that.


    Wait. Maybe she has seen it and that's the reason nobody has heard from Drone.
  9. DRONE

    DRONE Dog Chauffeur

    Joined:
    Oct 1, 2007
    Oddometer:
    4,181
    Location:
    Chambers Bay, WA
    So long as you keep your big trap shut, BT, everything's cool. Queen Bee never visits ADV. :lol3
  10. boxertwin

    boxertwin Long timer

    Joined:
    Mar 27, 2003
    Oddometer:
    1,023
    Location:
    Idaho
    HE lives!

    I know nothing.
  11. boxertwin

    boxertwin Long timer

    Joined:
    Mar 27, 2003
    Oddometer:
    1,023
    Location:
    Idaho
    When Thing Two and I got back from CDA in 2012, Madam BT saw this one and said, "Who is that?"
    [​IMG]
  12. DRONE

    DRONE Dog Chauffeur

    Joined:
    Oct 1, 2007
    Oddometer:
    4,181
    Location:
    Chambers Bay, WA
    Yeah, who is that girl sitting in your rig? Could it be that Thing Two was getting an early start? I guess you're never too young to learn that a guy really ups his potential when he's driving his Dad's hack!

    [​IMG]
  13. claude

    claude Sidecar Jockey

    Joined:
    Mar 17, 2002
    Oddometer:
    4,159
    Location:
    Middleburg, Pa. (Snyder County)
    Cool little sidecar with a PRETTY WILD STEERING DAMPER SETUP.
  14. DRONE

    DRONE Dog Chauffeur

    Joined:
    Oct 1, 2007
    Oddometer:
    4,181
    Location:
    Chambers Bay, WA
    Back on p. 33 of this thread I described the mechanical failure I had in Wyoming that caused me to wreck (11 months ago). That post led to a number of comments and observations and suggestions from various inmates. Well, today, I finally got around to disassembling the front end and cleaning up the parts to take a closer look. What I found was fairly interesting, but not being too schooled in these things, I'm not really sure what I'm seeing.

    First, the ball joint. There was plenty of anti-seize still in the threads so at least I know that the assembly instructions were followed for that. I was expecting to find lots of metal from the fork bridge threads embedded in the ball joint threads, but I did not find any! Instead, I found that the steel threads of the ball joint were deformed and partially flatted. To make certain, I used a steel dental pick to dig into the threads but all I got was the anti-seize remains. The first 6 pics below show the six sides of the ball joint (in sequence) so you can see that ALL the threads are flatted all the way around, with one place worse than the rest--

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    I don't understand how the relatively softer metal of the fork bridge could deform the steel threads of the ball joint.

    And by the way, the other end of the ball joint--the part that attaches to the swingarm and gets the red loctite treatment--that's still tightly mounted and undamaged.


    So what does the DMC fork bridge look like? The threads are destroyed from the top down to 14mm deep. And the ball joint is 14mm deep, so the ball joint was seated all the way down at some point. But again, what I found interesting, is there was no loose metal or stripped threads. Instead, the threads appear to be mashed down or "flatted". But all the metal seems to be there.

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]


    I don't mean to start any new controversy here, but I am curious as to what sort of motion caused the threads on both pieces to get deformed like this. Rather than supposition (guessing), I'd really like to hear from folks who've seen this before and know what causes it. Especially if they are not from Minnesota. :lol3
  15. FR700

    FR700 Banned

    Joined:
    May 4, 2007
    Oddometer:
    8,512
    The ball joint came loose. Once that occurred the threads are no longer locked together on one edge so they can now move up and down. Time, and the hammering that resulted, did the rest.

    14 mm ain't a lot, rough rule of thumb is 1.5 x diameter.

    Welcome to your vibration.


    .
  16. davebig

    davebig Another Angry Hun !

    Joined:
    Jan 19, 2004
    Oddometer:
    4,240
    Location:
    Minnesota
    But wait lets here from MN anyway.
    Why would there be anti seize on those threads ? Are you sure it's anti seize and not aluminum turned to powdery consistancy.
    When BMW assembles them they use a grey loctite takes about 3-400 degrees to get it apart, perhaps the previous owner who may have installed the trail reducer partially cross threaded it backed it out and started over, in trying to assemble it correctly he added a bunch of anti seize to ease the threading .
    If you didn't assemble it someone did you a great dis service, your only failure was in not finding it and believing the nonsense your youthful BMW tech told you that sometime things have to break to figure out what's wrong.That's as kind as I can be .
    On the other hand intentionally misaligned fork tubes be it DMC or Freedom sidecars trail reducers is a bad idea ! I don't care how many either of them have sold and adding another joint to raise the front back up just doubles the chances for trouble.
    [​IMG]
  17. DRONE

    DRONE Dog Chauffeur

    Joined:
    Oct 1, 2007
    Oddometer:
    4,181
    Location:
    Chambers Bay, WA
    The BMW Service Manual actually calls for anti-seize on those threads. After all, it's steel on aluminum, with a lot of torque -- 230 Nm.


    I know that some of you guys think the ball joint is where my vibration was coming from. But when I finally get this bike rebuilt and back on the road (as a 2-wheeler) I'm totally expecting the vibration to still be there. I will be shocked if the vibration is gone. But then again, I've been shocked before. And wrong before! :D
  18. norton(kel)

    norton(kel) vintage

    Joined:
    Apr 13, 2010
    Oddometer:
    1,342
    Location:
    CO.
    I thought you sent the bike to the breakers. Post 621 ?
  19. DRONE

    DRONE Dog Chauffeur

    Joined:
    Oct 1, 2007
    Oddometer:
    4,181
    Location:
    Chambers Bay, WA
    Insurance company did that. I bought it back for $1400 a couple of months later when it went up on auction.
  20. davebig

    davebig Another Angry Hun !

    Joined:
    Jan 19, 2004
    Oddometer:
    4,240
    Location:
    Minnesota
    Not unusual at all for an anti seize formula to have thread locking qualities, custom bicycle wheels often use such a product on spoke threads,after taking 8-10 ball joints apart while building trail reducers they seldom come apart without heat, then quite easily.Looking at the images again it wasn't cross threaded just loose.DB