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Screwed dropout

Started by Bomba · · Last activity · 16 posts · 1,192 views

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Mountain Bikes
Published
23 April 2004
Last activity
26 April 2004
Original author
Bomba
Posts
16
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Public discussion
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  1. Some of you may have been following the 'Worn dropout question' thread.
    Well, I've now got a picture that GaryM sent me and it's hosted here:
    j-harris.netm dropout.jpg

    I'm not quite sure what he's done, or what can be done to
    even bodge a fix. Anybody have any ideas?

    --
    a.m-b FAQ: j-harris.netambfaq.htm

    b.bmx FAQ: t-online.debmx faq.htm

  2. Quoted message said:

    I'm not quite sure what he's done, or what can be done to
    even bodge a fix. Anybody have any ideas?

    Weld and grind?

  3. "bomba" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:

    Some of you may have been following the 'Worn dropout
    question' thread. Well, I've now got a picture that GaryM
    sent me and it's hosted here: j-j-
    harris.net/bike/misc/m_dropout.jpg

    I'm not quite sure what he's done, or what can be done to
    even bodge a fix. Anybody have any ideas?

    Looks like it's either been:

    A) Ridden with loose QR.

    B) Had the wheel repeatedly *jammed* into the dropout.

    or C) It came that way.

    I think the steel washer idea would still work, myself, but
    only barely...

    Shaun aRe

  4. John Harlow said:
    Quoted message said:

    I'm not quite sure what he's done, or what can be done to
    even bodge a fix. Anybody have any ideas?

    Weld and grind?

    It's alu. Pretty sure welding would be too difficult.

    --
    a.m-b FAQ: j-harris.netambfaq.htm

    b.bmx FAQ: t-online.debmx faq.htm

  5. Shaun Rimmer said:
    Quoted message said:

    Some of you may have been following the 'Worn dropout
    question' thread. Well, I've now got a picture that GaryM
    sent me and it's hosted here: j-j-
    harris.net/bike/misc/m_dropout.jpg

    I'm not quite sure what he's done, or what can be done to
    even bodge a fix. Anybody have any ideas?


    Quoted message said:


    Looks like it's either been:

    A) Ridden with loose QR.

    That was my initial guess, and I think that's probably it.
    However, the picture was way worse than I imagined.

    Quoted message said:

    B) Had the wheel repeatedly *jammed* into the dropout.

    or C) It came that way.

    I think the steel washer idea would still work, myself,
    but only barely...

    I'm thinking a thick washer with a deformed internal flange
    that will fill the gap (kind of like the one at the back
    here: mainlandbolt.comwashers.jpg). But,
    I think it's risky.

    --
    a.m-b FAQ: j-harris.netambfaq.htm

    b.bmx FAQ: t-online.debmx faq.htm

  6. Quoted message said:
    Quoted message said:
    Quoted message said:

    I'm not quite sure what he's done, or what can be done
    to even bodge a fix. Anybody have any ideas?

    Weld and grind?

    It's alu. Pretty sure welding would be too difficult.

    It shouldn't be. Get him to take it to a competent
    machine shop.

  7. "John Harlow" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:


    Quoted message said:
    Quoted message said:

    > I'm not quite sure what he's done, or what can be
    > done to even bodge a fix. Anybody have any ideas?

    Weld and grind?

    It's alu. Pretty sure welding would be too difficult.

    It shouldn't be. Get him to take it to a competent
    machine shop.


    I second that. Better than jury-rigging something that may
    fail on you.

    F.Plant

  8. bomba said:
    John Harlow said:
    Quoted message said:

    I'm not quite sure what he's done, or what can be done to
    even bodge a fix. Anybody have any ideas?

    Weld and grind?

    It's alu. Pretty sure welding would be too difficult.


    You would have to heat treat after any welding because the
    initial heat would anneal the dropout.

    Something you could try is filling it in with some heavy
    duty epoxy ( jbweld.netmarineweld.html ), and
    then reshape/grind it smooth. Not sure if it would work, but
    that JIB Weld is some strong stuff... used it many times.
    --
    Slacker

  9. Err... that was supposed to be jbweld.netcoldweld.html

  10. "F. Plant" <[email hidden]> wrote in
    :"]news:[email hidden]:

    Quoted message said:

    I second that. Better than jury-rigging something that may
    fail on you.

    Thanks Bomba your help and for posting the pic and everyone
    else for their replies. The thing rides OK presently with a
    bit of rubbing on the brake bads, but obv. it is applying a
    constant force at an unanticipated angle on the frame, so
    cannot be good in the long run.

    How would someone find a competent machine shop, in
    Massachussets? I don't think the big bike shops have
    those skills?

  11. Quoted message said:

    Thanks Bomba your help and for posting the pic and
    everyone else for their replies. The thing rides OK
    presently with a bit of rubbing on the brake bads, but
    obv. it is applying a constant force at an unanticipated
    angle on the frame, so cannot be good in the long run.

    How would someone find a competent machine shop, in
    Massachussets? I don't think the big bike shops have
    those skills?

    You could try the local yellow pages.

    Whatever you do, you will need to find out and fix what's
    causing this so it doesn't keep happening. My guess is a
    poor alignment of the dropouts on the frame, perhaps it was
    assembled improperly or has been bent.

  12. Get some of that AL that melts with a Benotourch. And
    than grind.

    I MTB 2004

  13. "bomba" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:

    Some of you may have been following the 'Worn dropout
    question' thread. Well, I've now got a picture that GaryM
    sent me and it's hosted here: j-j-
    harris.net/bike/misc/m_dropout.jpg

    I'm not quite sure what he's done, or what can be done to
    even bodge a fix. Anybody have any ideas?

    Was this a FS bike? Could he just get a new backend?

    Chris

  14. "Shaun Rimmer" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:
    Quoted message said:


    I think the steel washer idea would still work, myself,
    but only barely...

    I'm the king of half-assing a ride with cheesily
    ground washers.

    pbase.com19501230

    That thing threw the chain every 100 feet...until it got
    "nicked" as you put
    it.

    Chris

  15. GaryM said:

    "F. Plant" <[email hidden]> wrote in
    :"]news:[email hidden]:

    Quoted message said:

    I second that. Better than jury-rigging something that may
    fail on you.

    Thanks Bomba your help and for posting the pic and
    everyone else for their replies. The thing rides OK
    presently with a bit of rubbing on the brake bads, but
    obv. it is applying a constant force at an unanticipated
    angle on the frame, so cannot be good in the long run.

    How would someone find a competent machine shop, in
    Massachussets? I don't think the big bike shops have
    those skills?

    Check with Sheldon at Harris Cyclery. I'm sure he'll point
    you in the right direction.

    Greg

  16. "bomba" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:
    Shaun Rimmer said:
    Quoted message said:

    Some of you may have been following the 'Worn dropout
    question' thread. Well, I've now got a picture that
    GaryM sent me and it's hosted here: j-j-
    harris.net/bike/misc/m_dropout.jpg

    I'm not quite sure what he's done, or what can be done
    to even bodge a fix. Anybody have any ideas?


    Quoted message said:
    Quoted message said:


    Looks like it's either been:

    A) Ridden with loose QR.

    That was my initial guess, and I think that's probably it.
    However, the picture was way worse than I imagined.

    Quoted message said:

    B) Had the wheel repeatedly *jammed* into the dropout.

    or C) It came that way.

    I think the steel washer idea would still work, myself,
    but only


    barely...

    Quoted message said:


    I'm thinking a thick washer with a deformed internal
    flange that will fill the gap (kind of like the one at the
    back here:
    mainlandbolt.comwashers.jpg). But, I
    think it's risky.

    Same here - I think it's a weld fill, grind and re-heat-
    treat job myself...

    Shaun aRe

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