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 02-19-09, 07:40 PM   #1
ibo
Member
Thread Starter
 
Join Date: Jun 2008
Bikes:
Posts: 43
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
fork/headset shaky...

Hi,
I wanted to overhaul the headset of my old roadbike. Upon "opening" everything I discovered that the fork crown (the piece where the ball bearings "roll" on) is not tight, maybe 1 mm play. I put it all back together and had it tight and no shaking, etc. After driving a little bit I tested by pulling the brakes and seeing if there is any play and there was.
Could it be that 1 mm play is the cause?
If so can I get a new fork crown that is more tight or is the problem the fork, near the crown....
Thanks for any advice.
Ibo
ibo is offline   Reply With Quote
Old 02-19-09, 07:52 PM   #2
Panthers007
Great State of Varmint
 
Panthers007's Avatar
 
Join Date: Sep 2008
Location: Dante's Third Ring
Bikes:
Posts: 7,479
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Pictures would, as usual, help. It sounds as though the headset loosened up over the years. Overhaul the headset and replace the ball-bearings with fresh grade-25 balls. Apply grease and carefully tighten it back together. If, after you have tightened the bolts and top-nut, it is still loose, I would look into getting it a spacer to add to the stack. A trip, with the bike, to your LBS might be a good move if you've limited experience with headsets. And most shops have a bucket of spacers for your headset somewhere.

I'm betting it just needs an overhaul and careful reassembly.
Panthers007 is offline   Reply With Quote
Old 02-19-09, 08:41 PM   #3
WNG
Spin Forest! Spin!
 
WNG's Avatar
 
Join Date: Sep 2007
Location: Arrid Zone-a
Bikes: I used to have many. And I Will again.
Posts: 5,967
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I will assume you mean the crown race is loose around the fork crown.
It should be quite snug, no play. 1mm of play makes me suspect you have a 27mm JIS race on a 26.4mm ISO fork crown. But if the headset is all OEM on your bike, this would seem odd.
Don't ride the bike in its condition or you'll wreck the fork, the headset, and maybe the headtube.
Inspect the race for cracks.
Pics would be useful here to help diagnose your problem.
WNG 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 08:27 PM.