Headset bearings damaging frame?

smd13

My old canondale r1000 (Alu frame) is making a horrible clicking sound when using the front brakes, and when swung side to side when climbing. I'm sure part of it is that the steerer (is it called spider or something?) could be tightened.
However I was also told last time a mechanic looked at it that the bearings had left dimples in the frame due to age. My question is can it be repaired if there actually is some wear? I know the bike is almost worthless but it's been a great stead for ten years now and I'd hate to get rid of it.
Any advice? If the situation doesn't make sense tell me I'll try to explain better :P

dgunthor

the dimples are in the crown race of the headset which is replaceable and it mounted on the fork - a new headset will sort it

keef66

Depends on the nature of the wear / damage and what kind of headset it has.

If the wear is just in the bearings / races then they can be replaced.

On some frames the bearings sit in cups pressed in to the head-tube, and if they are damaged they can be replaced,

Some bearings however sit directly in the head-tube, and if that's damaged it may be terminal.

jermas

If the frame is oversized due to the bearings wearing it away slightly, Loctite 660 might be worth a shot. It's a cap filling retaining compound.http://www.loctitesolutions.com/uk/productgallery/retaining/loctite-660.html.
A high strength epoxy might also work- bear in mind you'd have to hammer the bearings out when they're worn out.

kumarsan

I think headset dimples of crown race can be replaceable.

svetty

The clicking isn't from a cracked steerer tube by any chance? :shock:

I'd definitely want to know what was going on in there before riding it again.

Matthewfalle

any pics of your dimpled area?

#picturesaysathousandwords

Alejandrosdog

the caad road frames with the numbers r1000 r2000 from caad 5 onwards which is c 20 years old use the semi integrated headsets of a campagnola style.

this means the sealed bearings sit in the frame,( its not even an interference fit) so at no time do the bearings them selves contact the frame. the bearings in the bottom of the frame contact a bearing race on the fork which is known as the "crown Race" indicating its location on the crown of the fork. At that age the crown race is not integrated with the fork but is a separate item that is pressed onto the fork. When this race is damaged or worn it can easily be removed and another fitted. A new headset appropriate to the fork will include a crown race.

the only way a headset in a bike like this can damage the frame is corrosion or being run completely loose for a long time leading to deformation of the engineered seat in the frame. You will probably have crashed and died during that process.

various companies manufacture these headsets. theyre cheap and very easy to install with no special tools. you can even use the old bearing to bash the crown race into place and a screwdriver or stanley knife to remove the old crown race if it really needs replacing.

Alejandrosdog

the clicking sound is not unusual when headsets are dry or have grit in them. dropping the fork out degreasing and then regreasing the headset is often enough to restore. if its been too long and it needs replacing then its a simple job.

kumarsan

What bearings did you buy? And what did the bearings that came out of the bike look like?

As for riding on a sloppy headset, no, don't do it. It's dangerous. There's lots of stress at the headset, not to mention you end up with a loss of control.

kumarsan

What bearings did you buy? And what did the bearings that came out of the bike look like?

As for riding on a sloppy headset, no, don't do it. It's dangerous. There's lots of stress at the headset, not to mention you end up with a loss of control.
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tarumete

It depends on wear.. some can be replaced and others can be terminals.
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