Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take Part in the October Giveaway to Win the Qiolor TIGER Retro Electric Bike


Adjustable Cup stuck
#1
Hi, I have a normal mountain bike bought from a department store about a year ago, I've been hearing a lot of creaking noise recently and found out that the spindle is wobbling a great deal ( not just the crank arms ).

After watching some videos, I discovered that the remedy seems to be simply adjusting the hex cup on the non-drive side, since I recognize it to be a ball & bearing bottom bracket.

I don't even need to take off the crank arm, my wrench fits in the gap between as you can see from the picture.

[Image: unnamed_zpszvmnq2py.jpg]
I took off the lock ring using a hammer and a flat-head screwdriver, but things have been stuck since then. The cap won't move an inch, I see from other videos that it turns easily, but mine is almost glued.

Now, I really hate having to take it to the shop ( $30 ), but I'm not sure how to proceed by myself. Should I try to turn the cap clockwise or counter-clockwise? Why is the adjustable cap so tight? I read that only the fixed cap gets super tight. Any advice on this would be most helpful!

Many thanks!
  Reply
#2
The cup on this side does have normal threads, so you should be turning it counter-clockwise to loosen.
These don't give as many problems as the drive side does, but they can get stuck due to rust, etc. If you can't get it to move as is, you may either need to pull off the crank arm so you can get a better grip on it, or take it to a shop.

Note, that it may be wise to open up the bottom bracket, inspect, and regrease it anyway. If it's gotten loose, there's a fair chance that you need at least new grease, if not new bearings, cups, etc. 

If you are able to adjust it, you can try that for a while. But if you pay someone to work on it, have them open and inspect. Don't just tighten it.
  Reply
#3
(05-12-2015, 03:51 PM)DaveM Wrote:  The cup on this side does have normal threads, so you should be turning it counter-clockwise to loosen.
These don't give as many problems as the drive side does, but they can get stuck due to rust, etc. If you can't get it to move as is, you may either need to pull off the crank arm so you can get a better grip on it, or take it to a shop.

Note, that it may be wise to open up the bottom bracket, inspect, and regrease it anyway. If it's gotten loose, there's a fair chance that you need at least new grease, if not new bearings, cups, etc. 

If you are able to adjust it, you can try that for a while. But if you pay someone to work on it, have them open and inspect. Don't just tighten it.

Thanks Dave, I decided to take it to the shop, which turned out to be a wise choice. The bearings were all worn out due to rust, the mechanic replaced all the parts inside ( ball bearings, spindle ). He told me that I must have rode it when it got a bit loose, making it a lot worse. Guess I learned a lesson the hard way.

Again thanks for the tip, I'll keep it in mind next time.
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
7,990
02-06-2016, 07:17 PM
Last Post: Lighttower
 
8,953
02-19-2014, 03:33 AM
Last Post: GeorgeET
 
10,238
06-01-2013, 06:58 PM
Last Post: Painkiller
 
50,326
10-21-2012, 07:19 AM
Last Post: FredS
 
9,682
10-26-2011, 11:43 AM
Last Post: chibler
 
26,247
09-26-2011, 12:00 PM
Last Post: trevgbb
 
31,382
06-03-2011, 08:19 PM
Last Post: mrdunk
 
9,742
10-11-2010, 12:28 PM
Last Post: Jordan300

Forum Jump:

[-]
10 Latest Posts
Schwinn trike NOISE
Today 05:20 PM
Schwinn meridian rear drive axle
Today 04:36 PM
What was your first bicycle?
Yesterday 04:11 PM
Great UK Cycle Camping Map, For E-Bikes,...
Yesterday 05:38 AM
Charging at campground
Yesterday 05:33 AM
Failure to stop at stop sign means $500 ...
Yesterday 05:27 AM
Bicycle enthusiast located in California
Yesterday 04:15 AM
Moving in Style: Beyond Regular Transpor...
Yesterday 01:29 AM
Do you plan or random ride your MTB ride...
11-02-2024 11:43 AM
Cycling is Anti-Aging, But There's a Cat...
11-02-2024 11:36 AM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. Jesper
18 posts
no avatar 2. enkei
18 posts
no avatar 3. GirishH
13 posts
no avatar 4. Flowrider
12 posts
no avatar 5. Talha
10 posts