Steering head races stuck, Any tips

Discussion in 'UK Motorcycles' started by JohnH, Sep 6, 2004.

  1. JohnH

    JohnH Guest

    Ok, few problems here, changing the bearings on the fazer. Did a quick
    google but didn't find exactly what i want.

    1) The inner race on the lower bearing is stuck to the top of the bottom
    yoke, there are no obvious notches to get it out, tried briefly with a
    hammer + screwdriver but no luck. Would a hacksaw be more successfull? I
    dont have a dremmel or angle grinder.

    2) The Outer race on the lower bearing is stuck in the headstock, but i
    got it shifting a bit now by tapping each side down a bit with a bent
    screwdriver, (although oneside has gone down a good bit further than the
    other), Gonna go to B&Q and get a long chisel thing so i can hammer it
    properly. Hopefully that should work, anything i should be aware of?

    3) The outer race on the top bearing is stuck in the top of the
    headstock, no obvious notches to tap it out with (didn't look too hard
    though). What can be done here, any ideas to get it out?

    Spent ages on it it yesterday, getting nowhere, starting to piss me off
    bigtime.

    Thanks in advance for any help,
     
    JohnH, Sep 6, 2004
    #1
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  2. JohnH

    Pip Guest

    You won't even scratch it with a hacksaw. Races are as hard as the
    hobs of hell by design as they have to be, otherwise they would wear
    out very quickly.

    This is a fine excuse to buy an angle grinder. The DIY sheds or likes
    of Screwfix and Machine Mart do small ones that start at about a
    tenner. Wear gloves (welding gauntlets are ideal) and FFS eye
    protection as a minimum, a face shield is better.

    Get a cutting disc in it and (after a bit of practice elsewhere if
    you've not used one before) approach the race carefully - you do not
    want to cut into the yoke - not even a little bit. What you want is a
    couple of notches in the race at about 180 degrees from each other.
    Cut 2/3 of the way through the race and the remainder should split
    with a tap from a chisel.
    I'd get in the bottom and tap it back level again, tbh. Then continue
    as you were. It won't be all that tight, so a foad chisel and
    sledgehammer is not actually required. If you had it moving, repeat
    until it pops out - but keep the tapping even across it so it doesn't
    skew again.
    IME these usually come out quite easily. Often levering across it
    with a big old screwdriver will dislodge it. If that fails, stuff the
    big old screwdriver up the tube, find a lip and tap the bugger out.
    It should move quite easily.
    Don't let the bastard grind you down. Go buy (or borrow) a new toy
    and grind the bastard down instead.

    May the farce be with you.
     
    Pip, Sep 6, 2004
    #2
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  3. JohnH

    Dave H. Guest

    Hi John, replies in line....

    Bearings are made of about the hardest steel you can find - the hacksaw
    blade would last about 5 or 6 strokes before it reached "blunt as ****"
    without even marking the bearing - you might have some success with one of
    those emery-coated blades for cutting ceramics? Files are the same, ruined
    in a few strokes on case-hardened steel :eek:( Never lend files to the
    mechanically unsympathetic!

    One of the best tools in this case is heat - applied to the bearing race
    with wet rags on the steering stem to keep that cool - a borrowed plumbers
    torch should do the trick, or her indoors' oven, followed by the wet rags to
    shrink the steering stem, then drift off with a chisel/punch and hammer
    Keep it square! if it goes appreciably out of square, you risk ovalising the
    steering head and the new bearing won't be as securely held, so very very
    careful!
    If you can, get a piece of sturdy steel, round the ends so that'll drop in
    place across the bearing inside the steering head, and pound on that so the
    load is spread - if you can drill a small dimple in the middle to locate the
    punch in, all the better.
    As above....
    HTH

    Dave H.
    (The engineer formerly known as Homeless)
     
    Dave H., Sep 6, 2004
    #3
  4. JohnH

    Robbo Guest

    <snip bearing woes>

    As PiP says Angle Grinder.

    Local hire shop will sort you one out and the correct wheel and protection
    for a small amount.


    --


    --
    Robbo
    1500GL 1988 Goldwing (Halfway rebuilt)
    BMW K100 RS 1984
    "Fairly Quick" status. Silver level
    BotaFOF #19. E.O.S.M 2001/2002/2003.
    B.O.S.M 2003, 2004 .FURSWB#1 KotL..YTC449
    PM#7
    ..
     
    Robbo, Sep 6, 2004
    #4
  5. JohnH

    JohnH Guest

    <snip usefull stuff>

    Cheers to all who replied, will get an angle grinder and do the biz
     
    JohnH, Sep 7, 2004
    #5
  6. JohnH

    Pip Guest

    Go gently with that disc, Eugene. Seriously - if you cut into the
    stem it's fucked - if you lop a finger off, that fixes for free.

    --
    Pip - Manufacturer of the "Champion-105" range of exhaust hangers.

    WS* DFWAG#0 IbW#27* DIAABTCOD#15 GP#0 EKP FUB#4 MKA+E#3
    ANORAK#8 MIRTTH#15 BOTAFOT/F#47/34a BONY#13 KotMIB# <space>
    UKRMRM#14 TWA#2 BOMB#0
     
    Pip, Sep 7, 2004
    #6
  7. JohnH

    JohnH Guest

    Saw a cheapo 800w 112mm at wickes for 17.99, so ill go for that. Its a
    metal cutting disk, not a grinding disk right? I'll have a few practice
    goes on some other things before i go near the stem, last thing i need
    is a knackered set of forks, or a lopped off finger.
     
    JohnH, Sep 7, 2004
    #7
  8. JohnH

    Pip Guest

    Yep. Cutting disc is yer lad for this job - 1.5 - 2mm thick, see.
    Knife through butter.

    Oh, the sparks, the scream of tortured steel, the stench of hot metal
    and disc dust catching in yer throat. Have fun.
     
    Pip, Sep 7, 2004
    #8
  9. JohnH

    Zymurgy Guest

    Pip wrote
    Bloody safety nazi's

    I cut a dirty great hole in a tile on Sunday with my angle grinder
    without any hand or eye protection, in sandals and shorts.

    How does that suit you then, huh, huh ?

    Cheers,

    Paul.
     
    Zymurgy, Sep 7, 2004
    #9
  10. It was somewhere around Barstow, on the edge of the desert, when the
    Heh.

    --

    Dave

    GS 850 x2 / SE 6a
    SbS#6 DIAABTCOD#16 APOSTLE#6 FUB#3
    FUB KotL OSOS#12? UKRMMA#19 COSOC#10
     
    Grimly Curmudgeon, Sep 7, 2004
    #10
  11. JohnH

    Pip Guest

    (Zymurgy) struggled to ejaculate:
    Would you recommend somebody else (who has never used one before,
    perhaps) to emulate you?

    Specs or contacts?
     
    Pip, Sep 7, 2004
    #11
  12. JohnH

    Nigel Eaton Guest

    Using the patented Mavis Beacon "Hunt&Peck" Technique, Zymurgy
    You should have a chat with my mate Pete. Or "one-eyed Pete" as we call
    him. Spun an AG up to see whether the disk was OK.

    It wasn't.

    However, it's your eyesight, so you carry on.
    --
    Nigel - Manufacturer of the "Champion-105" range of rearsets

    WS* GHPOTHUF#24 APOSTLE#14 DLC#1 COFF#20 BOTAFOT#150 HYPO#0(KoTL)
    ZZR1100, Enfield 500 Curry House Racer "The Basmati Rice Burner",
    Honda GL1000K2 Kawasaki ZN1300 Voyager "Oh, Oh, It's so big"
     
    Nigel Eaton, Sep 8, 2004
    #12
  13. JohnH

    Zymurgy Guest

    Course not, but it was a quick hole and I couldn't be assed finding my
    gauntlets and goggles, so I couldn't advoicate safety gear in every
    case.

    This being said when cutting metal I do. Hot sparks hurt whereas tile
    dust doens't (mostly)
    Ah good point, I was wearing very dusty glasses afterwards :)

    Cheers,

    Paul.
     
    Zymurgy, Sep 8, 2004
    #13
  14. JohnH

    Pip Guest

    (Zymurgy) struggled to ejaculate:
    Having done just what you did, I can tell you that speeding, red hot
    tile chips and fragments of cutting disc _do_ fucking hurt when they
    get you up the delicate bit of the inside of your forearm. I quite
    like the feeling of hot sparks gliding off the outside of the forearm
    - when you aim the stream just right. They fucking hurt down the boot
    or the back of the neck, though.
    Aha! You _were_ wearing eye protection, after all. Cutting metal
    wearing specs is dodgy, as I expect you know. The tiny fragments of
    steel won't come off/out of the lens, rip your cleaning cloth to bits
    and rust like bastards.

    I had the door mirror of a car get in the way when grinding spot welds
    back in a hurry once. Made a right mess of the glass, it was covered
    in tiny sharpasfuck fragments which rusted overnight and looked
    fucking terrible. I have seen the results of grinder spatter hitting
    a laminated windscreen, too - that wasn't a laughing matter.
     
    Pip, Sep 8, 2004
    #14
  15. It was somewhere around Barstow, on the edge of the desert, when the
    drugs began to take hold. I remember Nigel Eaton
    Same as my mate 'OneFingerPhil'; who decided to check the integrity of a
    rolling mill by putting himself through it.

    One finger was all we found.

    We take the finger out for the evening and show it a good time
    occasionally. It's a nice thing to do, don't you think?

    --

    Dave

    GS 850 x2 / SE 6a
    SbS#6 DIAABTCOD#16 APOSTLE#6 FUB#3
    FUB KotL OSOS#12? UKRMMA#19 COSOC#10
     
    Grimly Curmudgeon, Sep 8, 2004
    #15
  16. LOL
     
    Whinging Courier, Sep 8, 2004
    #16
  17. JohnH

    Zymurgy Guest

    Pip wrote
    heh :)
    Hm, worst I had was a shard of tile glaze in the eye when I was
    stripping off old bathroom tiles. That hurt for a week before it came
    out. (Or went in :-/)
    Last metal I cut was the cast iron soil pipe from the bog. I had
    goggles, gloves, disposable overalls and a mask on for that one. 40
    year old shit flying around. Ugh.

    Cheers,

    Paul.
     
    Zymurgy, Sep 9, 2004
    #17
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