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Thread: Need wrenching help

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  1. #1
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    Unhappy Need wrenching help

    I wanted to remove the SW Motech crashbars installed by the PO on my 2004 R1150R. The night before i was going to remove them, I shot the connections with P Blaster and the next day, 5 of the 6 bolts turned with some effort but were easily removed. The 6th fastener turned with little effort, which surprised me since these bolts are supposed to be torqued very tightly - and the bolt turned, and turned, and turned....but doesn't extract. I thought I'd try to apply some muscle so I cut away the crash bar so that I could get a pry bar on the bolt to exert some pressure while turning the bolt but still no joy. Any suggestions would be appreciated; here is a picture of the stubborn bolt:Stuck bolt.jpg

  2. #2
    Registered User roger 04 rt's Avatar
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    It sounds as if the final bolt is broken and something is holding enough pressure on it to keep it captive. Find a way to release the pressure, grab it with a pair of Vicegrips and twist + pull.

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    Echo what Roger said.. Perhaps a shop hyd jack under the point where it goes through. SLIGHT pressure with it though. My concern is where that bolt went in, looking at it it looks like the drive casing? I cant tell from the pic but I would imagine if that goes through part of the bike it's jacked. GL!
    Ride Safe!

  4. #4
    Benchwrenching PGlaves's Avatar
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    I can't tell from the photo if this is possible, but it sounds to me like the fastener has a nut on the end that has loosened just enough to spin with the fastener. I have seen a couple of cases of stripped threads in the casting where a longer bolt and nut was installed.

    Check carefully where the end of the fastener would be to verify whether there is a nut or not.

    Added: On my '03 R1150R that fastener threads into a cross-tube. See if the tube itself is turning with the fastener. If it is, then reinstall the fastener on the other side to hold the tube, or make sure the clamp on the lefts side is tight.
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://www.bigbend.net/users/glaves

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    Quote Originally Posted by PGlaves View Post
    I can't tell from the photo if this is possible, but it sounds to me like the fastener has a nut on the end that has loosened just enough to spin with the fastener. I have seen a couple of cases of stripped threads in the casting where a longer bolt and nut was installed.

    Check carefully where the end of the fastener would be to verify whether there is a nut or not.

    Added: On my '03 R1150R that fastener threads into a cross-tube. See if the tube itself is turning with the fastener. If it is, then reinstall the fastener on the other side to hold the tube, or make sure the clamp on the lefts side is tight.
    Thanks. I didn't notice any fastener though now you have me thinking. Thee parts fiche of the rear frame of the 00-06 R1150R doesn't show any fastener but if your '03 has a fastener and the fiche is correct, your '03 should = my '04.......where exactly was the tube on your '03? Thanks again.

  6. #6
    Benchwrenching PGlaves's Avatar
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    Reach in behind that big boss on the transmission. You should find a round cross-tube going across the top of the rear of the transmission right in line with the problem bolt. That bolt threads into the tube I think.

    It looks like the bolt on the right side and left side both thread into the tube. The pinch clamp around the tube is on the right side.

    Things will be botched up of the pinch clamp is loose though. I can tell from the original photo that an extra long bolt with spacer has been substituted on your bike. Suspect too much thread locker and maybe crossed threads.
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://www.bigbend.net/users/glaves

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    Quote Originally Posted by PCHRT View Post
    Echo what Roger said.. Perhaps a shop hyd jack under the point where it goes through. SLIGHT pressure with it though. My concern is where that bolt went in, looking at it it looks like the drive casing? I cant tell from the pic but I would imagine if that goes through part of the bike it's jacked. GL!
    Thanks. The bolt goes through the rear frame and appears to go into the drive casing. See the attached rear frame PDF parts 4 & 5. I did try a light hyd jack under what appears to be the stress point but no joy. I'm thinking that maybe I could fashion a puller of some kind but its a thorny problem. Those old crash bars are starting to look real good to me right now!!
    Attached Files Attached Files

  8. #8
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    Quote Originally Posted by Roger 04 RT View Post
    It sounds as if the final bolt is broken and something is holding enough pressure on it to keep it captive. Find a way to release the pressure, grab it with a pair of Vicegrips and twist + pull.
    Thanks. I've tried a hyd jack under what I think is the pressure point and had no luck. What started out as a pretty simple project has turned into a major league head scratcher. I'm now thinking about trying to jerry rig a puller that i can apply with jack pressure under the stress point. This may be where my old high-school buddy turned Snap_on dealer comes in handy.

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