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Posted

You don't say which bike it is. Trek has had some issues with its Madone frames and at first replaced all the frames when customers complained and when that became too expensive, produced a pre-shimmed bearing for a better fit.

 

It is very, very difficult to shim such bearings since the shim slips when fitting the bearing and distorts, creating even more problems. Trek's solution was a shim that is somehow created from tube stock. It appears that they've fitted it with heat since the shim sits very nicely on the bearing and folds over both sides for an easy fit.

 

Perhaps you can obtain one of these bearings and ram it in there.

 

I've had success with bearing fixing anaerobic compound too. At first I feared the time when the bearing had to come out but with a proper drift and one smart smack it came out straight away.

 

Someone said that copperslip will seize up the bearing. No, it won't. It doesn't go inside, it goes on top.

 

Someone suggested PFTE tape. That won't work. The tape easily comes off when the bearing is pressed in.

 

Someone suggested local beer cans are made of alu. No, they're steel. Do some more research. Buy a tall glass, a magnet and 24 cans of each brand of beer. It can't hurt to perform a control experiment on the side with glass containers.

I did say. I said it was a new bike!

Posted

You don't say which bike it is. Trek has had some issues with its Madone frames and at first replaced all the frames when customers complained and when that became too expensive, produced a pre-shimmed bearing for a better fit.

 

It is very, very difficult to shim such bearings since the shim slips when fitting the bearing and distorts, creating even more problems. Trek's solution was a shim that is somehow created from tube stock. It appears that they've fitted it with heat since the shim sits very nicely on the bearing and folds over both sides for an easy fit.

 

Perhaps you can obtain one of these bearings and ram it in there.

 

I've had success with bearing fixing anaerobic compound too. At first I feared the time when the bearing had to come out but with a proper drift and one smart smack it came out straight away.

 

Someone said that copperslip will seize up the bearing. No, it won't. It doesn't go inside, it goes on top.

 

Someone suggested PFTE tape. That won't work. The tape easily comes off when the bearing is pressed in.

 

Someone suggested local beer cans are made of alu. No, they're steel. Do some more research. Buy a tall glass, a magnet and 24 cans of each brand of beer. It can't hurt to perform a control experiment on the side with glass containers.

It's the new Bulls frame. The crank I ma using is the new 3X10 Sram and it is very specific to it's own BB. I tried a Shi*mano BB but it didn't even work with that crank. The best idea I have heard so far is locktite which I wil try in the new year. If that fails I will keep going.

Posted

I went on to the orbea website which has a vidio of the method of fitting press fits, definately locktite

Do you have a link for the video? I have been to their website and can't seem to find it!!

Thanks

Posted

Loctite make a "bearing retainer compound" for specifically this problem, holding bearings tight, smear a bit on the cups and press them in leave to cure overnight and problem solved. You should be able to find it at Builders warehouse, Mega Mica, Midas etc...

Posted

Hi,

 

I had 2 problems with my frame once. The first was a bearing on the BB which creaked a little. Changed that but things were perfect. Everytime I applied power it would creak. Turned out all I had to di was put some greese on the rear skewer and frame at the drop outs. Where it makes contact with the frame it seems to creek. I have to put a new application after and 3-4 washes of the bike.

Posted

Tried locktite and no progress. Heard that it might be the chainring bolts. Going to try them today. Will also grease up the skewers. Don't think it is the headset as the noise is there even if I am not really holding on tight. Just when power is put through the crank. If anyone else has anything please let me know.

Thanks

Posted

I am using the press fit bb on my spez and havent had any issues, actually its the best bb I have ever used, its been 6 months of hammering without a peep. Its shimano press fit with lx crank. Good luck.

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