HOT: Active* forum members generally gain 5% discount at starbike.com store!
Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Articles FAQ Contact About




Post new topic Reply to topic  [ 4 posts ] 
Author Message
 Post subject: tight bottom bracket
PostPosted: Sat Feb 19, 2005 12:09 am 
Offline

Joined: Sat Feb 19, 2005 12:04 am
Posts: 7
Have just fitted a new stronglight twister ISIS bb to my time vxr. On torquing up to required setting the axle rotation beocmes very stiff. Is this normal, will it free up with some mileage, or should I just back off the stated torque settings of 40NM?


Top
 Profile  
 
 Post subject: Re: tight bottom bracket
PostPosted: Sat Feb 19, 2005 12:36 am 
Offline

Joined: Mon Dec 15, 2003 6:05 am
Posts: 1011
mlc wrote:
Have just fitted a new stronglight twister ISIS bb to my time vxr. On torquing up to required setting the axle rotation beocmes very stiff. Is this normal, will it free up with some mileage, or should I just back off the stated torque settings of 40NM?


The cups should go in by hand for at least a few turns. Inspect the treads of both the cups and the BB shell. I assume these are all brand new? If so then make sure the cups are greased before installing. I don't know about the stronglite ISIS BB, but the ISIS BB's Ive installed have a lip on both cups. Both cups on both sides should tighten all the way with the lip up against the shell. If not I'd be cautious .. not worth stripping any threads!

Depending on the BB, I don't always use grease. Sometimes 1 or 2 layers (or more) of teflon tape, depending on the BB and shell, but that's just me. Nowadays I find lots of cups come from the factory with some teflon imbedded in the cup threads so it can be redundant. If I use teflon tape then I don't use grease but just make sure it's VERY clean first.

BTW, I'm not a mechanic but just done my own wrenching for a long time. You might get some different advice here .. but I just told you what I do. :) Hope it works out.


Top
 Profile  
 
 Post subject: Re: tight bottom bracket
Posted: Sat Feb 19, 2005 12:36 am 


Top
  
 
 Post subject:
PostPosted: Sat Feb 19, 2005 1:38 am 
Offline

Joined: Tue Dec 23, 2003 9:28 pm
Posts: 1769
Location: Unknown parameter
Are you sure it's 40 Nm on both sides? A couple other brands I have used are something like 40 on the drive side and 20 on the non-drive and if you go to high on the non-drive it does the same thing you describe.


Top
 Profile  
 
 Post subject:
PostPosted: Sat Feb 19, 2005 8:24 am 
Offline

Joined: Sat Feb 19, 2005 12:04 am
Posts: 7
misers - at 20NM on the non drive side the tightness seems manageable with no lateral movement. Think I will stick with this and give it a spin and see if things feel O.K.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 4 posts ] 


Who is online

Users browsing this forum: Bing [Bot], Cuki, Kermithimself, Rippin and 40 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Which PF 30 bottom bracket

[ Go to page: 1, 2 ]

in Road

mattlawro

21

1664

Wed Jun 25, 2014 2:28 pm

topflightpro View the latest post

There are no new unread posts for this topic. Attachment(s) Campagnolo bottom bracket cups gap?

[ Go to page: 1, 2 ]

in Road

isharamet

26

935

Fri Jul 04, 2014 7:19 pm

em3 View the latest post

There are no new unread posts for this topic. Bottom Bracket issues with my R3 Temperatur???

in Road

ANV

6

315

Mon Jun 09, 2014 1:41 pm

mjduct View the latest post

There are no new unread posts for this topic. Homemade bottom bracket cup press

in Road

robhall2003

5

883

Wed May 07, 2014 10:18 pm

audiphile View the latest post

There are no new unread posts for this topic. Bottom Bracket Replacement for Rotor 3D+ Pressfit

in Road

gazzaputt

10

1148

Fri Aug 09, 2013 3:04 pm

5 8 5 View the latest post


It is currently Thu Jul 24, 2014 12:11 pm

All times are UTC + 1 hour




Advertising   –  FAQ   –  Contact   –  Convert   –  About

© Weight Weenies 2000-2013
hosted by starbike.com


How to get rid of these ads? Just register!


Powered by phpBB