Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 08-01-07, 11:33 PM   #1
musicsucks
bikes also suck.
Thread Starter
 
Join Date: Aug 2006
Bikes:
Posts: 205
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
BB wrench for italian bottom brackets?

Do those hook-wrenches come in a different size for italian bottom brackets? mine was a ***** to put in, and seems to be equally *****y coming out, and it seems like the wrench (especially the 3 hook part) is not super tight, and i really don't want to strip the BB and get stuck with an almost seized BB for the rest of my bikes life.

Bonus questions:
1. Since my BB is italian threaded, is it possible to install it backwards for a different chainline?

2. If i put a 118.5 bb in backwards, will it give me the same chainline as a 109.5? i don't really know how to do the math on this, but i've compared them and it looks like it's pretty much the same.

3. Why the hell is my facking Dura-Ace bottom bracket allready almost seized? not only is it the highest-zoot part of my bike, which otherwise works perfect, but i've ridden on it for -maybe- a month now.
musicsucks is offline   Reply With Quote
Old 08-02-07, 06:56 AM   #2
sch
Senior Member
 
Join Date: May 2003
Location: Mountain Brook. AL
Bikes:
Posts: 3,086
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 42 Post(s)
With many cartridge and all loose bearing BB axles I am
familiar with you can reverse the axle or cartridge inside
the cups/retainer rings, something done inadvertently
with 106 to 109 range axles because there is very little
visual difference between the CW and L sides. If you
don't mind the L side crank being spaced 'way out'
and it improves the R side chain line go ahead. Since it
only takes 5-10min to reverse it just try it out for size.

What do you mean by seized? BB bearings or cups in the
BB shell?
sch is offline   Reply With Quote
Old 08-02-07, 07:06 AM   #3
musicsucks
bikes also suck.
Thread Starter
 
Join Date: Aug 2006
Bikes:
Posts: 205
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
it's an octalink...
and by seized (well, almost) i mean the bb bearings. i know that i should be able to pull them out and re-pack them with grease and be good to go, but it just so happens that i have an ultegra BB that is 118.5. while it's not as bling as the DA bottom bracket that is in there now, it is a more sealed mechanism and should be generally less stress.
musicsucks is offline   Reply With Quote
Old 08-02-07, 08:02 AM   #4
Soil_Sampler
A little North of Hell
 
Join Date: Mar 2006
Bikes:
Posts: 4,821
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 25 Post(s)
octalink

If you have a BB-7703 it cannot be serviced, the BB-7700 can be serviced.

http://techdocs.shimano.com/media/te...9830610606.pdf

Using a spanner on that BB is a PITA!
Use this or similar.

http://www.biketoolsetc.com/index.cg...tem_id=LF-11D3
Soil_Sampler is offline   Reply With Quote
Old 08-02-07, 11:24 AM   #5
DMF 
Elitist Troglodyte
 
DMF's Avatar
 
Join Date: Jun 2006
Location: Dallas
Bikes: 03 Raleigh Professional (steel)
Posts: 6,924
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Soil_Sampler View Post
If you have a BB-7703 it cannot be serviced, the BB-7700 can be serviced.
It can also be mis-adjusted. Could well be the case here.
__________________
Stupidity got us into this mess - why can't it get us out?

- Will Rogers
DMF is offline   Reply With Quote
Old 08-03-07, 07:25 PM   #6
Kommisar89
Bottecchia fan
 
Join Date: Aug 2003
Location: Colorado Springs, CO
Bikes: 1959 Bottecchia Professional (frame), 1966 Bottecchia Professional (in progress...), 1971 Bottecchia Professional (frame), 1973 Bottecchia Gran Turismo, 1974 Bottecchia Special (in progress...), 1977 Bottecchia Special (frame), 1974 Peugeot UO-8
Posts: 3,425
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You never know - I couldn't come up with a BB tool for my Italian BB which was an oem Bianchi (no idea who actually made it) titanium spinal BB to match the cf crank. I finally emailed Bianchi usa and sent them a picture of the danged thing and they wrote back and told me the tool is NOT available in the US. If it needs to be serviced, I should bring it to my Bianchi dealer and they can call Bianchi usa who will then overnight the tool to them on loan. I though that was pretty weird. Hope I don't need to remove it anytime soon.
Kommisar89 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 12:46 AM.