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 08-09-06, 02:26 PM   #1
rat_factory
= cyclist's tan
Thread Starter
 
rat_factory's Avatar
 
Join Date: Jun 2005
Location: the big D in the big T
Bikes: '82 Miyata 310, '87 Scott Boulder, '87 Schwinn Le Tour, '91 Cannondale SM500, '96 Schwinn Clear Creek, '99 Schwinn MesaGS, '05 Rockhopper
Posts: 297
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
ceramic bushing for Shimano 600

I recently aquired an abused 86? 600 rear mech with a trashed jockey pulley with a ceramic bushing (the idler pulley is a retro-fitted Suntour!). The teeth are worn down to slight bumps -- i guess the chain was misaligned for a while. I was going to stick another non-ceramic g-pulley in there from parts I had, but I realized I had no spare 'Centeron G-Pulley', only idler pulleys. Is there a difference besides the slight raised edge found on the g-pulley and what does it do? Can I buy ceramic pulleys from somewhere?
rat_factory is offline   Reply With Quote
Old 08-09-06, 03:57 PM   #2
mechBgon
Senior Member
 
mechBgon's Avatar
 
Join Date: Jul 2002
Bikes:
Posts: 6,957
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Centeron pulleys are designed to have side play. I think I have a DeoreXT pulley of that vintage that you can have (likewise, ceramic-bushing Centeron upper pulley). Drop me a PM if you're interested and I'll look for it after work.
mechBgon is offline   Reply With Quote
Old 08-09-06, 04:00 PM   #3
Gonzo Bob
cycles per second
 
Gonzo Bob's Avatar
 
Join Date: Oct 2003
Location: Minnesota
Bikes: Vitus Aluminum, DiamondBack Apex, Softride Powerwing 700, "Generic" Ishiwata 022, Trek OCLV 110
Posts: 1,790
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I bought new pulleys for my old Deore rear derailer at www.loosescrews.com
Mine were worn to sharp points I bet the "generic" ones they have for 6/7 speed derailers will work for the 600.

http://www.loosescrews.com/index.cgi...id=65590401587

Last edited by Gonzo Bob; 08-09-06 at 04:06 PM.
Gonzo Bob is offline   Reply With Quote
Old 08-10-06, 02:15 PM   #4
rat_factory
= cyclist's tan
Thread Starter
 
rat_factory's Avatar
 
Join Date: Jun 2005
Location: the big D in the big T
Bikes: '82 Miyata 310, '87 Scott Boulder, '87 Schwinn Le Tour, '91 Cannondale SM500, '96 Schwinn Clear Creek, '99 Schwinn MesaGS, '05 Rockhopper
Posts: 297
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
hmm, so i while i was looking for pulleys, i ran across some nice looking yet frowned upon purple anodized pulleys that would go great with another bike. Is there a certain amount of sideplay to aftermarket ones like that?

Is is the sideplay really necessary? I suppose it helps with indexing misalignments, but what about suntour pulleys? All the Suntour pulleys I have look the same and they don't use g-pulleys.

Maybe I have too much time on my hands to be fussing over the sideplay of pulleys with no significant load. Oh well, santa is dropping off a pulley soon now
rat_factory 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 12:28 AM.