Don't Super Glue as Alternate to Welding the Clutch Nut

Discussion in 'Frame Mounted Engines' started by will_start, Apr 8, 2008.

  1. will_start

    will_start Member

    I may be a fool (i'm not to proud to admit it),
    but sometimes my foolery ends up, being a stroke of genius in the long-run...

    EG Can on the muffler, Vernier Caliper Choke,
    Water-Proof Kill Switch (thanks large), Toilet Washer on Petrol Cap (thanks fetor),
    Hi Temp Engine Paint on motor actually cools it they say...

    My bike has been an experiment from the start
    so I've always played with it as such.

    I've sheared my woodruff key again.

    I found a supplier of Woodruff keys, bought a couple,
    took it home and it didn't fit. frustration of having my bike not running
    for the 25th time, used super glue on the sprocket,
    then glue on the nut.

    This actually worked.
    For a Day.

    I realise wood-ruff keys have been posted to death:

    but maybe no-one ever used super glue to break their bike in such a way.

    So I now have to un-glue the super-glue from the Nut,
    as the shaft has come unglued from the cog.

    I've searched the web and found a couple of solutions
    to un-glueing super-glue.
    "Cooking oil and lots of patience will remove or unstick superglue."

    I saw in another post that glueing has been sugguested.

    So once I get the super-glue undone, my supplier may have the wood-ruff.
    I am however interested in welding this thing shut with liquid steel epoxy.
    As its a simple way anyone could fix the wood-ruff option if you don't own a welder,
    or can't get a replacement key.
    Last edited: Apr 8, 2008

  2. BoltsMissing

    BoltsMissing Active Member

    Why not just try to heat it off with a hair dryer, soldering iron, or a miniture gas-light torch. Even a cig lighter might do it.
    The point is, it's a plastic and direct flame or hi heat ought to weaken it and it might just peel off !
  3. Abeagle

    Abeagle Guest

    Old stock drivers used the square shank of a heat treat screw driver as a wood-ruff in their axles, it was stronger than stock wood-ruffs.
  4. will_start

    will_start Member

    thanks bolts, I'll try that. i have a hair dryer even tho I don't use it myself.
    I was thinking of trying to shape the keys i bought with a angle grinder.
  5. BoltsMissing

    BoltsMissing Active Member

    I hope I meant to say, to heat off the super glue with hair dryer, not shape a key with hair dryer
  6. will_start

    will_start Member

    I tried the hair-dryer on the nut last night.
    It had no effect on loosening the nut.
    Worse still, I am shredding the nut groove
    through trying to unlock it with an impact driver.

    So I've made a commitment to myself to go hard-core on glueing.
    I think I'll start with using the areldyte glue that I already have.
    I believe that should be stronger than ordinary glue.

    My only concern is damaging the cog by glueing it
    to the nut rather than the shaft.

    Thereby causing it to crack if it goes off-centre.
    anyone have a technical/feasability opinion on that ?

    Also I'm concerned about glueing up the bearing internal to the motor.
    I thought about glueing the cog with the bike in a horizontal or vertical stance

    I think the vertical will keep the glue away from the bearing, which is what concerns me.

    If I didn't glue the nut, I think this type of solution could be viable,
    as if the glue fails, you can then undo the nut and re-glue the cog.

    Although I am quite over undoing/doing up that nut,
    as the nut groove started to strip from day one.

    this nut must have come undone for me 6 times,
    and randomly come undone after I have put lock-tite
    on the nut as well.

    So permanant glueing may be a does of fortune.

    Time will tell.
    Last edited: Apr 14, 2008
  7. BoltsMissing

    BoltsMissing Active Member

    I think we need some fotos taken of what you are doing.

    Yes, MAJOR concern !

    Pictures Will, need pictures at this point, got no idea of what's happened or what ya trying to achieve according to your explanation
  8. will_start

    will_start Member

    what bit doesn't make sense ?
    I thought I wrote it pretty clearly.

    if I take a photo you'll see nothing but the internal clutch nut, as normal.
    when I wheel the bike, the small cogs goes around and the clutch nut stays fixed.

    do you think the small cog could break if its glued to the Nut ?
  9. BoltsMissing

    BoltsMissing Active Member

    Pictures saying "This nut on Exhibit A and this cog on Exhibit B and had the hair dryer on Exhibit C etc etc.
    don't have a clue what ya on about cos we all use various terminology to describe the same component.
  10. will_start

    will_start Member

    ok, check this vid.

    it shows the small Cog and Large Nut that holds it on.
    tonight I've poured and forced strong glue into the gap
    between the cog and the nut. then rotated the cog.
    morning will tell if this has worked when the glue sets.

    The glue is araldite.
  11. BoltsMissing

    BoltsMissing Active Member

    Try "Wishing Well" first ( by Free. ),THEN she'll get there to here or whatever.

    It seems you might have damaged the slots in the small gear.
    If it breaks again, then I am afraid ya gonna have to get the gear and another new key that ought to be supplied with the gear.
    IF, and I hope it hasn't messed the slot on the shaft, hope it works.
    IF, you HAVE messed up the slot in the shaft, well friend, no amount of wishing will help.

    Good Luck !
  12. will_start

    will_start Member

    The only thing that broke was the key.
    This first happened two months ago, when I made the vid above.
    I checked the glue job this morning, and had a quick test run,
    and its working. IE the motor now engages.

    Was not game to ride it to work, in case the glue breaks halfway,
    I'll give it a decent test run in the next day or so and report back.
  13. loquin

    loquin Active Member


    Acetone (nail polish remover) dissolves super-glue. Be sure to get the acetone type nail polish remover, or pure acetone, and not the acetone-free type.

    A few precautions:
    1. acetone is extremely flamable
    2. be sure you use it in a well-ventilated location
    3. acetone can damage paint.
  14. will_start

    will_start Member

    Use Petrol to Unglue


    After using super-glue then a good chunk of Araldite, the bike worked for like about 500metres, and then the glue came undone.

    A friend told me that using heat on super-glue will make it stick harder.
    but, Using PETROL is the key to unglueing.
    and what do we as a group have available, lotsa Petrol.

    So, I laid the bike on its side, filled up the whole clutch area with PETROL,
    soaking the Clutch Nut every 5 mins with Fuel.
    After about an hour of doing this, the Nut finally released.

    See attached Pic of NUT and note the washer is completely covered in Glue.
    I soaked it all in Fuel again for an hour.
    I also found the old Wood-Ruff Key inside the clutch area, it had been ground down abit, but will work as a spare.

    Attached Files:

  15. Dude..... lets ride!!!!!

    heard you got it fixed mate

    so lets test it with some riding

  16. will_start

    will_start Member

    yes my bikes now running,
    and man its kicking RRRRse.

    So we'll see how my bike compares to yours and this
    time I won't have pedal.

    off topic, BUT,
    when we meet next tuesday.
    (there is a joke thats similar to that)
    FSAAA, I want to record you doing that jump over the speed hump.
    that was awesome.

    I think the safest way, would be, to be stationary and record, rather than riding
    along and recording you, although that could be an option.

    We'll see what else happens on the day.