Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Help or advice with rear sprocket removal and repair

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.

Help or advice with rear sprocket removal and repair

Old 07-18-08, 02:10 PM
  #1  
kenny444
Junior Member
Thread Starter
 
Join Date: Jul 2008
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Help or advice with rear sprocket removal and repair

Hello and good evening, I have a wobbling back wheel, so after an inspection and a tweak I can offer this information.

I have a rough sounding back bearing.

I have removed the cone and ancillary nuts, spacers etc, on one side of the rear wheel (not sprocket side) and the 9 bearings look OK. But they need new grease.

I am unable to get the axle out of the hub, so I can inspect/grease the other bearing. I did try lock nuts but no success

The cogs marked "Epoch Index Sprockets By-DNP 9606 LY - 1007KF" are just slightly loose.

How do I get it all apart and is it cheap to do? Pictures would be nice.

Thank you if you read this and and even bigger thank you if you replied.
kenny444 is offline  
Old 07-19-08, 09:52 AM
  #2  
bikeman715
Senior Member
 
bikeman715's Avatar
 
Join Date: Mar 2008
Location: Salinas , Ca.
Posts: 2,658

Bikes: Bike Nashbar AL-1 ,Raligh M50 , Schwinn Traveler , and others

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 85 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
need more info. do you have a freewheel or freehub ?
bikeman715 is offline  
Old 07-19-08, 10:03 AM
  #3  
Mistawes
Senior Member
 
Join Date: Jul 2008
Location: Dublin, Ireland
Posts: 85
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I'm pretty sure you'll need to get a tool to get the cassette off first, need to answer bikeman's question first to know which..

Good thing is, they tend to not be too expensive, usually had for under 10!
Mistawes is offline  
Old 07-19-08, 10:21 AM
  #4  
Sturmcrow
Senior Member
 
Join Date: Mar 2006
Posts: 349
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Pretty sure you've got a freewheel there. You could either spend $8 for a freewheel remover, or give your LBS a couple bucks to take it off for you. I'm a pretty regular customer at my LBS, so they did that for me at no charge once. It really depends upon how often you plan to take off freewheels.

Does yours look like this?
http://www.nashbar.com/profile.cfm?c...A%20Freewheels

If so, then you probably need this tool:
http://www.biketoolsetc.com/index.cg...item_id=PA-FR1

If all you're looking to do is lube the bearings, you should be able to take off all the nuts and cone on the non drive side and just pull the axle through, being careful not to drop the bearings. Depending upon your luck, you could stick some grease in there and put it all back together.
Sturmcrow is offline  
Old 07-19-08, 10:23 AM
  #5  
BCRider
Senior Member
 
BCRider's Avatar
 
Join Date: Mar 2008
Location: The 'Wack, BC, Canada
Posts: 5,466

Bikes: Norco (2), Miyata, Canondale, Soma, Redline

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
It sounds like you may have a freewheel if you can't get the axle out. On most freewheel setups you have to remove the freewheel before you can remove the axle and get to the bearings on the other side.

You need a freewheel tool to remove it and preferrably a bench vise mounted to a heavy bench to hold the tool. Or you need some way to press the tool very firmly into the slots. Trying to use a hand wrench on the tool will almost certainly result in it lever itself out and ruining the slots in the freewheel.

This is a job that you may want to take the wheel into the LBS and have them loosen it for you. They'll have the tool and the big bench vise. Once it's cracked loose (they typically let go with a sound like a gunshot) you can unscrew it by hand. You don't need to do more than tighten it by hand when you put it back on since the first time you pedal it'll tighten to the right torque.

And grease the threads before you put it back on. It makes it a little easier to get off the next time.
BCRider is offline  
Old 07-19-08, 01:15 PM
  #6  
kenny444
Junior Member
Thread Starter
 
Join Date: Jul 2008
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Thank you to all for this information, I have progressed and managed to remove the end screw and found the word freewheel, I also then pulled off the sprockets and cleaned them, the freewheel has some play, but I shall have to remove it as said to get the axle out. I suspect the next step is to remove the inner screw which has two dimples in it in order to progress further. is this helpful.
kenny444
kenny444 is offline  
Old 07-19-08, 02:38 PM
  #7  
BCRider
Senior Member
 
BCRider's Avatar
 
Join Date: Mar 2008
Location: The 'Wack, BC, Canada
Posts: 5,466

Bikes: Norco (2), Miyata, Canondale, Soma, Redline

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
If you do that the center part of the freewheel will still be on the hub but now the outer part and all the bearing balls will fall out. You still won't be able to get the axle out. The center part screws onto the hub. Again go through all the stuff at www.sheldonbrown.com that deals with rear wheels and freewheels. That web site is the first place any of us should go to learn about what the parts are and what holds them together. The other excellent resource for learning is http://www.parktool.com/repair/ with links to repair practices and how to use special bike tools.
BCRider is offline  
Old 09-22-08, 05:03 PM
  #8  
sandman007
Junior Member
 
sandman007's Avatar
 
Join Date: Sep 2008
Location: The AZ desert.
Posts: 20

Bikes: 26" Mongoose EFX 21 Speed & 26" Pacific Conquest SE 24 Speed

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Don't know if it's too late for this... but this is what happens when you remove the part with "the dimples"
~dig the tool? it works on automobiles too... o-snap ring remover~



I successfully put it back together with lots of patience, grease will allow you to stick the bearings back in. I'm swapping this one out for an 8-speed cassette. So I got alittle curious
sandman007 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
iFreedom
Road Cycling
42
05-19-14 09:54 AM
energyandair
Folding Bikes
3
03-14-09 09:50 PM
DrPete
Tandem Cycling
0
10-20-05 06:24 PM
sillygirl
Road Cycling
11
04-19-05 06:28 PM
brunning
Bicycle Mechanics
1
07-22-04 07:33 PM

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.