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 09-12-10, 09:12 PM   #1
jodypitch
JPitch
Thread Starter
 
Join Date: Aug 2009
Location: Dallas, Texas
Bikes: Miyata 610, Centurion Le Mans, K2 Hardtail MTB, 85 Stumpjumper
Posts: 57
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Is my headset OK?

I took apart the headset on my '83 Miyata 610. It is a basic cup-and-cone type, as you would expect. All four bearing races/cups show some wear (see pic). Basically, there is no "pitting", but the chrome plating is worn off in a very consistent thin line where there was contact with the bearings. It is not even easy to see, but I can feel the missing chrome with my fingernail. Bearing rings themselves appear to be fine.

So, can I get another thousand miles out of it, or is it shot? I will not be riding in the Tour de France, but do hope to take some trouble-free overnight tours.

Hey, if it is toast, how the heck do I get the old upper and lower head cups off of the head tube? They do not appear to be threaded....

Thanks!!!
Attached Images
File Type: jpg 072..jpg (85.0 KB, 18 views)

Last edited by jodypitch; 09-12-10 at 09:15 PM.
jodypitch is offline   Reply With Quote
Old 09-12-10, 09:25 PM   #2
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 18,807
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 219 Post(s)
If the only thing you see is a smooth ring around the chrome , then buy new bearing balls,
same size as came out ,
and re assemble it, you can stick loose balls in the grease, you don't need a retainer.
fietsbob is online now   Reply With Quote
Old 09-13-10, 02:37 AM   #3
MilitantPotato
Subjectively Insane
 
MilitantPotato's Avatar
 
Join Date: Jul 2008
Location: Saint Louis, Missouri
Bikes: '09 Rodriguez Adventurer Custom, '08 Trek 7.3Fx
Posts: 802
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
+1 to the above, also make sure it's perfectly round. If someone road it while loose it can cause it to take an oval shape.

Although it's like not needed for yours:
To remove, buy a copper pipe, hack saw about 3-4 inches into one end. Pry it open so it's just wider than the inside of your headtube. Feed it into the headtube so it's flush with the bearing races, and smash on the pipe with a rubber mallet.

You'll likely want a press to install new ones, that can be home made on the cheap and works very well from what I've read. Or pay the LBS a few bucks and they'll do it.
MilitantPotato is offline   Reply With Quote
Old 09-13-10, 03:22 PM   #4
davidad
Senior Member
 
Join Date: Feb 2009
Bikes:
Posts: 4,830
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Looks fine. If the balls still have their gloss then they can be reused.
davidad is offline   Reply With Quote
Old 09-13-10, 03:27 PM   #5
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 18,807
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 219 Post(s)
Loose balls are really cheap. new ones no big investment.
fietsbob is online now   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 07:32 AM.