Quoted message said:I have a 2002 5900 with the oversized lower headset bearing. It makes a
small noise when exerting a lot of pedal pressure when standing, e.g.
climbing. I have replaced the bearing and put green loctite in the cup as
recommended, but it still makes the noise.
How was the bearing replaced? It's *very* easy to damage the bearing during
the installation process, or simply install it slightly out-of-plane.
Either one causes trouble. I know; my first installation didn't go so well!
Quoted message said:Reason i know the noise is
coming from the bearing/cup is with the old bearing i put some grease in
the
Quoted message said:lower cup and it made it quite for a few weeks. But do not really care to
keep doing this.
Questions:
Is the cup susposed to have green loctite in it as was recommended?
Shouldn't be a problem, but you want to make sure you don't contaminate the
bearing with it.
Quoted message said:Can the lower cup be replaced, that is can it be extracted like a normal
cup
Quoted message said:and a replacement pressed back in. Someone told me, these are glued into
the frame and have to be removed by Trek with heat?
Yikes, the way it's put in I doubt you could remove it without potentially
doing some serious damage to the frame. Don't think I'd go there.
Quoted message said:Also, i was told that some company sells a shim/spacer that can be used to
convert this to a standard 1 1/8 inch headset/
Not sure how this would work, but it would be a neat trick. Keep in mind
that it would require a new fork as well, since the reason for the larger
lower bearing is to accommodate the special steer tube the older 5900s have,
which is larger at the bottom and smaller at the top.
Quoted message said:Mike J- i know you have some experience with these headsets?
Nah, none whatsoever! :>😉
PS: It's time to replace my bearings again; with what I put my poor bike
through, they last about a year and a half. Yes, I'll admit it, a Chris
King headset, as allowed by the newer 5900 & Madone designs, would be a nice
thing to have. That'll have to wait a while though, as I rather like my
5900, and tend to keep my bikes for a number of years.
--Mike-- Chain Reaction Bicycles
www.ChainReactionBicycles.com
"dobesh" <[email hidden]> wrote in message
news:[email hidden]...
Quoted message said:I have a 2002 5900 with the oversized lower headset bearing. It makes a
small noise when exerting a lot of pedal pressure when standing, e.g.
climbing. I have replaced the bearing and put green loctite in the cup as
recommended, but it still makes the noise. Reason i know the noise is
coming from the bearing/cup is with the old bearing i put some grease in
the
Quoted message said:lower cup and it made it quite for a few weeks. But do not really care to
keep doing this.
Questions:
Is the cup susposed to have green loctite in it as was recommended?
Can the lower cup be replaced, that is can it be extracted like a normal
cup
Quoted message said:and a replacement pressed back in. Someone told me, these are glued into
the frame and have to be removed by Trek with heat?
Also, i was told that some company sells a shim/spacer that can be used to
convert this to a standard 1 1/8 inch headset/
Mike J- i know you have some experience with these headsets?
Thanks.
Duane
