Clunking noise from headset?
Jay Beattie
bike that sounds like a really loose headset, but there is no play in
the headset or any other indication that the headset is shot. This is
an FSA unit. Sound travels in odd ways, and I was wondering if anyone
else experienced a clunking (not creaking, squeeking, clicking) sound
before. I don't think it is the BB since the sound is not tied to
pedalling. It is a disk brake bike, but the sound is not tied to
braking either. The only other possibility is the bar clamp, but that
usually causes creaking.
BTW, I totally silenced my Cannondale road bike which was making what
I thought were BB noises but were actually pedal and seatpost clamp
noises. -- Jay Beattie.
Jobst Brandt
> I'm getting a clunking noise from the front end of my Cannondale
> cross- bike that sounds like a really loose headset, but there is no
> play in the headset or any other indication that the headset is
> shot. This is an FSA unit. Sound travels in odd ways, and I was
> wondering if anyone else experienced a clunking (not creaking,
> squeaking, clicking) sound before. I don't think it is the BB since
> the sound is not tied to pedaling. It is a disk brake bike, but the
> sound is not tied to braking either. The only other possibility is
> the bar clamp, but that usually causes creaking.
I suppose you know how to recognize a loose bearing clunk, as on a
head bearing, so from your description, this sounds like a loose
bearing. An effective way of locating these is to bounce the front
end of the bicycle on solid pavement while standing next to it and
holding only the bar stem. Also try moving the BB by wiggling a
crank, side-to-side.
> BTW, I totally silenced my Cannondale road bike which was making
> what I thought were BB noises but were actually pedal and seatpost
> clamp noises.
These don't make loose bearing clunks, but rather creaking sounds
until they break. So how did you "completely silence" those
interfaces?
Jobst Brandt
Jay Beattie
BB noise on my road bike is typically clicking and creaking, probably
caused by the retaining rings or cups moving in the aluminum BB
shell. I silenced the BB by wrapping the cup threads (currently an
outboard BB) in Teflon tape. I silenced my pedals (clicking) by
greasing the threads and reinstalling, and I also greased the saddle
clamp and clamp bolt.
It is my cross bike that has the clunking, and so far, it does not
exhibit the typical symptoms of a loose headset or bad bearing, but I
will check again with the "bike drop" test. -- Jay Beattie.
Michael Press
<7ec0eee3-6ac7-4821...@z4g2000yqa.googlegroups.com>,
Jay Beattie <jbea...@lindsayhart.com> wrote:
When does it clunk?
If not always, what do you do that makes it start and stop?
--
Michael Press
landotter
If you get stumped, it might be worth having the head tube faced and
the cups re-pressed into the frame. If it's not all square, you can
have a headset that feels right on the money that still clunks under
load.
Jay Beattie
> In article
> <7ec0eee3-6ac7-4821-a67d-d569f9d19...@z4g2000yqa.googlegroups.com>,
> Jay Beattie <jbeat...@lindsayhart.com> wrote:
>
> > I'm getting a clunking noise from the front end of my Cannondale cross-
> > bike that sounds like a really loose headset, but there is no play in
> > the headset or any other indication that the headset is shot. This is
> > an FSA unit. Sound travels in odd ways, and I was wondering if anyone
> > else experienced a clunking (not creaking, squeeking, clicking) sound
> > before. I don't think it is the BB since the sound is not tied to
> > pedalling. It is a disk brake bike, but the sound is not tied to
> > braking either. The only other possibility is the bar clamp, but that
> > usually causes creaking.
>
> > BTW, I totally silenced my Cannondale road bike which was making what
> > I thought were BB noises but were actually pedal and seatpost clamp
> > noises. -- Jay Beattie.
>
> When does it clunk?
> If not always, what do you do that makes it start and stop?
It requires some load on the front end -- hard pedalling, going over a
curb, the start of climbing out of the saddle. It is not consistent.
It probably is a bad bearing, but there is no grinding or slop in the
headset. It is an FSA, and sorry to say it, I have not had good
longevity with their equipment. -- Jay Beattie.
thirty-six
The intermittent nature could mean a broken ball. If it's simply a
loos hadst thn th e (I nd som 's_eeess, crap keyboard, ah tha's
bttr,grrrr) front end will buzz whne you bounce it. Try slightly
diffrnt positions off c3ntre.
Michael Press
<51f73926-6ec1-42ca...@v20g2000yqv.googlegroups.com>,
Jay Beattie <jbea...@lindsayhart.com> wrote:
Inspect the joints around the head tube?
--
Michael Press