Head gasket probs on legend

Discussion in 'Technical Help' started by greatdane, Jun 18, 2015.

  1. greatdane

    greatdane New Member

    Jun 18, 2015
    0
    1
    london
    Hi,i really hope someone can help me here,my 99 legend has done its head gasket,when the repair shop started stripping down the head it broke a long bolt at the front,so its left the shank and thread inside the barrel/case assy,also one of the little bolts at front has snapped off,now i cant see how the longer bolt can be removed,would it be alright to helicoil the remaining part of the hole in barrel and use a shorter bolt,as it looks like ive got enough depth there,is this a common fault ,and should i use new head bolts,helpppppppppppppp ,cheers
     
  2. crispey

    crispey crispey creme de la creme

    Nov 6, 2014
    7,248
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    Uk
    I've heard this done somewhere... Get a metal drill bit sharpen the opposite side of blade with a file then use a reversible drill, drill into shank anti-clock and after a while should start unscrewing, if not too strongly seized, hopefully!!
     
  3. thebiglad

    thebiglad Old fart, still riding !

    Sep 25, 2013
    5,069
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    Central France
    • Like Like x 1
  4. crispey

    crispey crispey creme de la creme

    Nov 6, 2014
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    Well done biglad, I thought they were as hard to get hold of as left hand screwdrivers
     
  5. Recycled Rocker

    Recycled Rocker Senior Member

    Apr 19, 2014
    351
    113
    North Yorkshire Cave
    Repair shop should be able to sort that, either using above and/or stud extractor, they may need to warm it up, different expansion rates between alloy cases and steel bolt. Personally I would use new head bolts, you need one anyway, but personal choice , hope all goes well
     
  6. greatdane

    greatdane New Member

    Jun 18, 2015
    0
    1
    london
    many thanks for advice
     
  7. Keith Inglis

    Keith Inglis Member

    Feb 17, 2015
    18
    18
    Kings Lynn
    when I was in engineering they used a spark eroder to remove hardened snapped off bolts taps etc, it removed them cleanly and left the thread untouched, so if push comes to shove ! but you would have to price that against the price of a new part, but sometimes these things can be removed with an bit of heat and an easy out,
    good luck with it anyway.
    Keith
     
  8. greatdane

    greatdane New Member

    Jun 18, 2015
    0
    1
    london
    i am going to make a start next week on it,its not my bike ,im doing it for a friend whos short of cash,cheers for the help/advice everyone
     
  9. crispey

    crispey crispey creme de la creme

    Nov 6, 2014
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    did you have any luck?
     
  10. greatdane

    greatdane New Member

    Jun 18, 2015
    0
    1
    london
    Hi ,no not started it yet as just had to have my little finger cut off on right hand,so will start in about 4 weeks time now,just hope we can save it ,cheers for interest
     
  11. crispey

    crispey crispey creme de la creme

    Nov 6, 2014
    7,248
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    Good grief!! Can things get worse?? Sorry to hear that hope it heals quickly
     
  12. camman

    camman Member

    Jun 7, 2015
    20
    8
    christchurch dorset
    If it is going to be weeks before you start, fill the stud hole plus gas or other penatrating oil, and keep it topped up until you ready to drill it out.....more likely to come out.
    A bit of copaslip on the new bolts when fitted may prevent it from happening again
     
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