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Headset problems. starnut turning.

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Cycling Equipment
Published
27 August 2006
Last activity
28 August 2006
Original author
vintage
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11
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  1. I had a headset installed last week and new starnut in the forks. The
    headset after todays ride was a bit stiff. I backed off the tension but it
    didnt' seem to do anything. After a while I realized the actual starnut
    must be turning in the forks and therefore I can't even get the top cap off.
    There isn't enough room to fit a hacksaw blade under the gap in the cap.

    Is my only thing to do is drill out the bolt from the top and wouldn't that
    be hard? Not going back to the shop again as its a very nice new headset as
    well and expensive carbon stem its on as well.

    Am I screwed??

  2. vintage said:

    I had a headset installed last week and new starnut in the forks. The
    headset after todays ride was a bit stiff. I backed off the tension but it
    didnt' seem to do anything.

    Umm, backing off the bolt on the top cap will not lessen the preload on
    the bearings. You have to loosen the bolts that clamp the stem onto the
    steerer.

    Quoted message said:

    After a while I realized the actual starnut
    must be turning in the forks and therefore I can't even get the top cap
    off. There isn't enough room to fit a hacksaw blade under the gap in the
    cap.

    You should not need to remove the cap. Just loosen it a bit.

    Quoted message said:


    Is my only thing to do is drill out the bolt from the top and wouldn't
    that be hard? Not going back to the shop again as its a very nice new
    headset as well and expensive carbon stem its on as well.

    Considering your apparent lack of experience with this, deciding not to go
    back to the shop is a bad idea indeed. You spent a lot of money on the
    stem alone; don't skimp on service, if money is tight go for
    less-expensive parts. The difference between a carbon stem and an
    aluminum one is far less than the difference between proper
    and improper installation or maintenance.

    --

    David L. Johnson

    __o | If all economists were laid end to end, they would not reach a
    _`\(,_ | conclusion. -- George Bernard Shaw
    (_)/ (_) |

  3. vintage said:

    I had a headset installed last week and new starnut in the forks. The
    headset after todays ride was a bit stiff. I backed off the tension
    but it didnt' seem to do anything. After a while I realized the
    actual starnut must be turning in the forks and therefore I can't
    even get the top cap off. There isn't enough room to fit a hacksaw
    blade under the gap in the cap.

    Is my only thing to do is drill out the bolt from the top and
    wouldn't that be hard? Not going back to the shop again as its a
    very nice new headset as well and expensive carbon stem its on as
    well.

    Am I screwed??

    Take it back to where you had it installed.

  4. Quoted message said:

    Is my only thing to do is drill out the bolt from the top and wouldn't
    that
    be hard? Not going back to the shop again as its a very nice new headset
    as
    well and expensive carbon stem its on as well.

    As someone else pointed out, the adjustment of a threadless headset requires
    that the bolts on the side are loosened, along with the top cap bolt. The
    top cap does *not* have to be removed. The starnut shouldn't have any
    tendency to turn if you are loosening the top nut, by the way.

    Was this headset installed by a shop? When you mention that it's a "very
    nice" headset, are we talking Chris King? If so, they are very picky about
    installation, and often require additional frame prep (machining the
    headtube surfaces flat). That could be an issue here as well.

    I'm also a bit concerned about the "expensive carbon stem" that you're
    messing with. Many of the higher-end components require use of a torque
    wrench to set up properly. A mechanic who's worked with stems for years and
    years may be able to avoid using one, but even then it's not a bad idea.

    --Mike-- Chain Reaction Bicycles
    www.ChainReactionBicycles.com

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

    Quoted message said:

    I had a headset installed last week and new starnut in the forks. The
    headset after todays ride was a bit stiff. I backed off the tension but
    it
    didnt' seem to do anything. After a while I realized the actual starnut
    must be turning in the forks and therefore I can't even get the top cap
    off.
    There isn't enough room to fit a hacksaw blade under the gap in the cap.

    Is my only thing to do is drill out the bolt from the top and wouldn't
    that
    be hard? Not going back to the shop again as its a very nice new headset
    as
    well and expensive carbon stem its on as well.

    Am I screwed??

  5. Mike Jacoubowsky said:
    Quoted message said:

    Is my only thing to do is drill out the bolt from the top and
    wouldn't that
    be hard? Not going back to the shop again as its a very nice new
    headset as
    well and expensive carbon stem its on as well.

    As someone else pointed out, the adjustment of a threadless headset
    requires that the bolts on the side are loosened, along with the top
    cap bolt. The top cap does *not* have to be removed. The starnut
    shouldn't have any tendency to turn if you are loosening the top nut,
    by the way.
    Was this headset installed by a shop? When you mention that it's a
    "very nice" headset, are we talking Chris King? If so, they are very
    picky about installation, and often require additional frame prep
    (machining the headtube surfaces flat). That could be an issue here
    as well.
    I'm also a bit concerned about the "expensive carbon stem" that you're
    messing with. Many of the higher-end components require use of a
    torque wrench to set up properly.

    Have you seen an all-carbon stem yet? The ones I've seen are carbon wrapped
    over aluminum thread inserts. The lengthy part of the stem sometimes is
    carbon-only.
    --
    Phil Lee, Squid

  6. "Phil Lee, Squid" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:
    Mike Jacoubowsky said:
    Quoted message said:

    Is my only thing to do is drill out the bolt from the top and
    wouldn't that
    be hard? Not going back to the shop again as its a very nice new
    headset as
    well and expensive carbon stem its on as well.

    As someone else pointed out, the adjustment of a threadless headset
    requires that the bolts on the side are loosened, along with the top
    cap bolt. The top cap does *not* have to be removed. The starnut
    shouldn't have any tendency to turn if you are loosening the top nut,
    by the way.
    Was this headset installed by a shop? When you mention that it's a
    "very nice" headset, are we talking Chris King? If so, they are very
    picky about installation, and often require additional frame prep
    (machining the headtube surfaces flat). That could be an issue here
    as well.
    I'm also a bit concerned about the "expensive carbon stem" that you're
    messing with. Many of the higher-end components require use of a
    torque wrench to set up properly.

    Have you seen an all-carbon stem yet? The ones I've seen are carbon


    wrapped

    Quoted message said:

    over aluminum thread inserts. The lengthy part of the stem sometimes is
    carbon-only.
    --
    Phil Lee, Squid

    Gee I didn't think I needed to say I loosend the stem bolts as well to
    remove the top bolt. It really does feel like the star nut is turning
    though. Feels like the bolt has hit a point in the starnut thread where it
    wont turn anymore, hence any more torque and it causes the starnut itself to
    move. Not everyone posting here is a noob :-(

    Back to the shop I go to let them figure it out as they tightend the whole
    thing up and caused the mess to begin with. Loosening your headset
    shouldn't be this troublesome. I'm guessing they put in a cheap starnut in
    the steerer that has caused problems with the stem bolt.

  7. vintage said:

    "Phil Lee, Squid" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:
    Mike Jacoubowsky said:

    > Is my only thing to do is drill out the bolt from the top and
    > wouldn't that
    > be hard? Not going back to the shop again as its a very nice new
    > headset as
    > well and expensive carbon stem its on as well.

    As someone else pointed out, the adjustment of a threadless headset
    requires that the bolts on the side are loosened, along with the top
    cap bolt. The top cap does *not* have to be removed. The starnut
    shouldn't have any tendency to turn if you are loosening the top
    nut, by the way.
    Was this headset installed by a shop? When you mention that it's a
    "very nice" headset, are we talking Chris King? If so, they are very
    picky about installation, and often require additional frame prep
    (machining the headtube surfaces flat). That could be an issue here
    as well.
    I'm also a bit concerned about the "expensive carbon stem" that
    you're messing with. Many of the higher-end components require use
    of a torque wrench to set up properly.

    Have you seen an all-carbon stem yet? The ones I've seen are carbon
    wrapped over aluminum thread inserts. The lengthy part of the stem
    sometimes is carbon-only.
    --
    Phil Lee, Squid

    Gee I didn't think I needed to say I loosend the stem bolts as well to
    remove the top bolt. It really does feel like the star nut is
    turning though. Feels like the bolt has hit a point in the starnut
    thread where it wont turn anymore, hence any more torque and it
    causes the starnut itself to move. Not everyone posting here is a
    noob :-(

    Back to the shop I go to let them figure it out as they tightend the
    whole thing up and caused the mess to begin with. Loosening your
    headset shouldn't be this troublesome. I'm guessing they put in a
    cheap starnut in the steerer that has caused problems with the stem
    bolt.

    Starnut's a starnut. There's no such thing as a boutique starnut.
    Expanders are a different story, using a conical expansion device to push
    outwards against the steerer. Look into having your LBS put one in if they
    can't figure it out. I would assume that they would go with putting in a
    second starnut on top of the first one.

    I have had some starnuts that have poorly-pressed threaded inserts in the
    starnut, so the star portion of the nut stays in place, while the nut
    portion turns with the bolt. This may very well be the case.

    --
    Phil Lee, Squid

  8. vintage said:


    "Phil Lee, Squid" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:
    Mike Jacoubowsky said:

    > Is my only thing to do is drill out the bolt from the top and
    > wouldn't that
    > be hard? Not going back to the shop again as its a very nice new
    > headset as
    > well and expensive carbon stem its on as well.

    As someone else pointed out, the adjustment of a threadless headset
    requires that the bolts on the side are loosened, along with the top
    cap bolt. The top cap does *not* have to be removed. The starnut
    shouldn't have any tendency to turn if you are loosening the top nut,
    by the way.
    Was this headset installed by a shop? When you mention that it's a
    "very nice" headset, are we talking Chris King? If so, they are very
    picky about installation, and often require additional frame prep
    (machining the headtube surfaces flat). That could be an issue here
    as well.
    I'm also a bit concerned about the "expensive carbon stem" that you're
    messing with. Many of the higher-end components require use of a
    torque wrench to set up properly.

    Have you seen an all-carbon stem yet? The ones I've seen are carbon


    wrapped

    Quoted message said:

    over aluminum thread inserts. The lengthy part of the stem sometimes is
    carbon-only.
    --
    Phil Lee, Squid

    Gee I didn't think I needed to say I loosend the stem bolts as well to
    remove the top bolt.

    Sorry, bro, but it needs to be specified. Over in another forum I type at there
    was exactly that sort of problem. The guy just couldn't figure out how to raise
    his handlebars.

    Quoted message said:

    It really does feel like the star nut is turning
    though. Feels like the bolt has hit a point in the starnut thread where it
    wont turn anymore, hence any more torque and it causes the starnut itself to
    move. Not everyone posting here is a noob :-(

    Back to the shop I go to let them figure it out as they tightend the whole
    thing up and caused the mess to begin with. Loosening your headset
    shouldn't be this troublesome. I'm guessing they put in a cheap starnut in
    the steerer that has caused problems with the stem bolt.

    There are different nuts for different steerer materials and thicknesses. I'd
    try reaching up from the bottom of the steerer with a long screwdriver or the
    like and see if I couldn't wedge the starnut in place well enough to remove the
    bolt and then drive the old bad starnut through. Or rather I'd let that bike
    shop do that.

    Ron

  9. "RonSonic" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    On Mon, 28 Aug 2006 07:51:30 +1000, "vintage" <[email hidden]>


    Quoted message said:


    Quoted message said:


    "Phil Lee, Squid" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    Mike Jacoubowsky wrote:
    >> Is my only thing to do is drill out the bolt from the top and
    >> wouldn't that
    >> be hard? Not going back to the shop again as its a very nice new
    >> headset as
    >> well and expensive carbon stem its on as well.
    >
    > As someone else pointed out, the adjustment of a threadless headset
    > requires that the bolts on the side are loosened, along with the top
    > cap bolt. The top cap does *not* have to be removed. The starnut
    > shouldn't have any tendency to turn if you are loosening the top nut,
    > by the way.
    > Was this headset installed by a shop? When you mention that it's a
    > "very nice" headset, are we talking Chris King? If so, they are very
    > picky about installation, and often require additional frame prep
    > (machining the headtube surfaces flat). That could be an issue here
    > as well.
    > I'm also a bit concerned about the "expensive carbon stem" that


    you're

    Quoted message said:
    Quoted message said:
    Quoted message said:

    > messing with. Many of the higher-end components require use of a
    > torque wrench to set up properly.

    Have you seen an all-carbon stem yet? The ones I've seen are carbon


    wrapped

    Quoted message said:

    over aluminum thread inserts. The lengthy part of the stem sometimes


    is

    Quoted message said:
    Quoted message said:
    Quoted message said:

    carbon-only.
    --
    Phil Lee, Squid

    Gee I didn't think I needed to say I loosend the stem bolts as well to
    remove the top bolt.

    Sorry, bro, but it needs to be specified. Over in another forum I type at


    there

    Quoted message said:

    was exactly that sort of problem. The guy just couldn't figure out how to


    raise

    Quoted message said:

    his handlebars.

    Quoted message said:

    It really does feel like the star nut is turning
    though. Feels like the bolt has hit a point in the starnut thread where


    it

    Quoted message said:
    Quoted message said:

    wont turn anymore, hence any more torque and it causes the starnut itself


    to

    Quoted message said:
    Quoted message said:

    move. Not everyone posting here is a noob :-(

    Back to the shop I go to let them figure it out as they tightend the


    whole

    Quoted message said:
    Quoted message said:

    thing up and caused the mess to begin with. Loosening your headset
    shouldn't be this troublesome. I'm guessing they put in a cheap starnut


    in

    Quoted message said:
    Quoted message said:

    the steerer that has caused problems with the stem bolt.

    There are different nuts for different steerer materials and thicknesses.


    I'd

    Quoted message said:

    try reaching up from the bottom of the steerer with a long screwdriver or


    the

    Quoted message said:

    like and see if I couldn't wedge the starnut in place well enough to


    remove the

    Quoted message said:

    bolt and then drive the old bad starnut through. Or rather I'd let that


    bike

    Quoted message said:

    shop do that.

    Ron

    All sorted. Phil was right. It was the actual thread/barrel in the middle
    of the starnut that was turning not the starnut itself. Basically it was
    knocked out from the bottom of the forks up and out. New starnut seated and
    all is well again. :-) Borderline call that the bearings weren't toasted.

  10. vintage said:

    I had a headset installed last week and new starnut in the forks. The
    headset after todays ride was a bit stiff. I backed off the tension but it
    didnt' seem to do anything. After a while I realized the actual starnut
    must be turning in the forks and therefore I can't even get the top cap off.
    There isn't enough room to fit a hacksaw blade under the gap in the cap.

    Is my only thing to do is drill out the bolt from the top and wouldn't that
    be hard? Not going back to the shop again as its a very nice new headset as
    well and expensive carbon stem its on as well.

    Am I screwed??

    If it's turning, it must be loose...pry it off, may loose the top cap
    but I would think you could pry it out, then install a correct sized
    one..BTW-'had a HS installed', by a bike shop? sounds like they need to
    make it right.

  11. vintage said:


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

    Quoted message said:

    On Mon, 28 Aug 2006 07:51:30 +1000, "vintage" <[email hidden]>


    Quoted message said:


    Quoted message said:


    "Phil Lee, Squid" <[email hidden]> wrote in message
    news:[email hidden]...
    > Mike Jacoubowsky wrote:
    > >> Is my only thing to do is drill out the bolt from the top and
    > >> wouldn't that
    > >> be hard? Not going back to the shop again as its a very nice new
    > >> headset as
    > >> well and expensive carbon stem its on as well.
    > >
    > > As someone else pointed out, the adjustment of a threadless headset
    > > requires that the bolts on the side are loosened, along with the top
    > > cap bolt. The top cap does *not* have to be removed. The starnut
    > > shouldn't have any tendency to turn if you are loosening the top nut,
    > > by the way.
    > > Was this headset installed by a shop? When you mention that it's a
    > > "very nice" headset, are we talking Chris King? If so, they are very
    > > picky about installation, and often require additional frame prep
    > > (machining the headtube surfaces flat). That could be an issue here
    > > as well.
    > > I'm also a bit concerned about the "expensive carbon stem" that


    you're

    Quoted message said:
    Quoted message said:

    > > messing with. Many of the higher-end components require use of a
    > > torque wrench to set up properly.
    >
    > Have you seen an all-carbon stem yet? The ones I've seen are carbon
    wrapped
    > over aluminum thread inserts. The lengthy part of the stem sometimes


    is

    Quoted message said:
    Quoted message said:

    > carbon-only.
    > --
    > Phil Lee, Squid
    >
    >

    Gee I didn't think I needed to say I loosend the stem bolts as well to
    remove the top bolt.

    Sorry, bro, but it needs to be specified. Over in another forum I type at


    there

    Quoted message said:

    was exactly that sort of problem. The guy just couldn't figure out how to


    raise

    Quoted message said:

    his handlebars.

    Quoted message said:

    It really does feel like the star nut is turning
    though. Feels like the bolt has hit a point in the starnut thread where


    it

    Quoted message said:
    Quoted message said:

    wont turn anymore, hence any more torque and it causes the starnut itself


    to

    Quoted message said:
    Quoted message said:

    move. Not everyone posting here is a noob :-(

    Back to the shop I go to let them figure it out as they tightend the


    whole

    Quoted message said:
    Quoted message said:

    thing up and caused the mess to begin with. Loosening your headset
    shouldn't be this troublesome. I'm guessing they put in a cheap starnut


    in

    Quoted message said:
    Quoted message said:

    the steerer that has caused problems with the stem bolt.

    There are different nuts for different steerer materials and thicknesses.


    I'd

    Quoted message said:

    try reaching up from the bottom of the steerer with a long screwdriver or


    the

    Quoted message said:

    like and see if I couldn't wedge the starnut in place well enough to


    remove the

    Quoted message said:

    bolt and then drive the old bad starnut through. Or rather I'd let that


    bike

    Quoted message said:

    shop do that.

    Ron

    All sorted. Phil was right. It was the actual thread/barrel in the middle
    of the starnut that was turning not the starnut itself. Basically it was
    knocked out from the bottom of the forks up and out. New starnut seated and
    all is well again. :-) Borderline call that the bearings weren't toasted.

    Cool. This stuff usually does get worked out.

    Ron

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