Blade bolt broken off inside spindle

Discussion in 'Mechanic and Repair' started by IES, May 1, 2013.

  1. IES

    IES LawnSite Senior Member
    Posts: 296

    Wonderig if anyone had a trick to get a bolt end out of spindle threads. Last time it happened on one of our mowers just replaced the spindle, but before I drop $150 I thought I'd ask. Thanks for any advice.
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  2. Greyst1

    Greyst1 LawnSite Senior Member
    Posts: 897

    Should be a square thread, have you check if you can back it out with a chisel & ball peen? It should be fairly loose since the head is off.
     
  3. B-2 Lawncare

    B-2 Lawncare LawnSite Senior Member
    Posts: 263

    Try welding a smaller bolt to the broke off bolt.
     
  4. knox gsl

    knox gsl LawnSite Platinum Member
    Posts: 4,845

    Or just stick a welding rod to it.
     
  5. american dream

    american dream LawnSite Senior Member
    Posts: 291

    You could try a eezyout works for me.
     
  6. Nate'sLawnCare

    Nate'sLawnCare LawnSite Bronze Member
    Posts: 1,001

    Center punch what's left of the bolt and use a left-hand drill bit about half the size of the bolt to drill it. It may just back out with that, or use an easy out after drilling.
     
  7. weeze

    weeze LawnSite Fanatic
    Posts: 7,999

    i don't have an easy out but what i have done in the past is drill a hole with a drill bit in the middle of what's left of the bolt. use a drill bit about half as big or even smaller than the bolt diameter and then hammer a small flat head screwdriver into the hole you drill and you can unscrew the bolt that way.
     
  8. IES

    IES LawnSite Senior Member
    Posts: 296

    Thanks fellas. I will try these suggestions and let you know what happens
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  9. jetta

    jetta LawnSite Member
    Posts: 220

    try drilling i out with a left handed drill bit
     
  10. piston slapper

    piston slapper LawnSite Platinum Member
    Posts: 4,240

    If you can't back it out with a centerpunch....use a cobalt drill bit...
    That hard ole bolt will just laugh at a regular high speed drill bit...

    Still not sure what caused it to break...
    If it was crossthreaded....you might be wasting your time...even if you could get the bolt out..
    You would have to re tap the threads...and even then they would be sloppy and prolly cause a repeat failure..
     

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