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Thread: Impact wrench or Breaker bar

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  1. #1
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    Impact wrench or Breaker bar

    I am attempting to remove the top nuts on the forks of my 1150GS so that I can drop the forks and re-route the brake line and cables for a ROX riser installation. I can't break the nuts with my 6 inch ratchet so I either have to get a breaker bar or an impact wrench. Are there any recommendations here? The torque value for the nuts is 40lbs. They may be over tightened or be some degree of seized up.

    I went to Sears today and all they seemed to have were impact wrenches. What would be best, a 2 ft breaker bar or a plug in electric impact wrench? Any brand recommendations?

  2. #2
    Unfunded content provider tommcgee's Avatar
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    I keep a 12 inch breaker bar in my toolkit on the bike. You very seldom need more than that. What kind of bolts are they? If hex head, use a 6 point rather than 12 point socket.
    Salty Fog Rally 2007, 2009, 2011, 2012, AND LOOKING FORWARD TO 2014!

    -Tom (KA1TOX)

  3. #3
    Outlander Omega Man's Avatar
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    What size is the nut- 10 or 12 mm? I'd soak it with any of the brand name penetrating oils and use a standard size 3/8 breaker bar. I'd try to tighten a smidge then loosen a smidge and work it loose. If that doesn't work, I'd move to a hand impact (hit with a hammer) driver to kinda shock it loose. A quick spin with say a half inch air impact will probably snap the bolt. Good luck. OM
    "Well they say.. time loves a hero but only time will tell.. If he's real, he's a legend from heaven If he ain't he was sent here from hell" Lowell George
    2009 F800GS 1994 TW200
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    The nuts are 14Mn hex.

  5. #5
    Outlander Omega Man's Avatar
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    Quote Originally Posted by Merlin III View Post
    The nuts are 14Mn hex.
    Same deal. The inherently shorter length of the 3/8 breaker bar helps from applying too much force. Go easy, as no doubt from age and salt exposure, there is some corrosion. OM
    "Well they say.. time loves a hero but only time will tell.. If he's real, he's a legend from heaven If he ain't he was sent here from hell" Lowell George
    2009 F800GS 1994 TW200
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  6. #6
    Unfunded content provider tommcgee's Avatar
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    I once bought an 18 inch breaker bar, but only ever needed it once on a counter sprocket nut. Big bar, 1/2 inch drive (but still cheaper than bringing the bike to a shop).

    The 10" or 12" 3/8 drive breaker bar is the one that gets a workout when I do bike maint. If you need more oomph, put a short pipe over it or whack it with a hammer. That's why I like 6 point sockets. They won't slip like 12 point ones sometimes do.
    Salty Fog Rally 2007, 2009, 2011, 2012, AND LOOKING FORWARD TO 2014!

    -Tom (KA1TOX)

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