How do I remove this threaded headset?
07-15-24 | 08:05 AM
#26
Mad bike riding scientist
Joined: Nov 2004
Posts: 29,152
Likes: 6,209
From: Denver, CO
Bikes: Some silver ones, a red one, a black and orange one, and a few titanium ones
It shouldn’t. Was it the lower cup or the upper one? Neither should just pull out but the lower one would be of greater concern since it would suggest that the headtube is ovalized or damaged. Inspect the headtube for cracks and use a caliper to measure the diameter to see if it is consistently round.
__________________
Stuart Black
Dreamin' of Bemidji Down the Mississippi (in part)
Plan Epsilon Around Lake Michigan in the era of Covid
Gold Fever Three days of dirt in Colorado
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
Stuart Black
Dreamin' of Bemidji Down the Mississippi (in part)
Plan Epsilon Around Lake Michigan in the era of Covid
Gold Fever Three days of dirt in Colorado
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
07-15-24 | 10:32 AM
#28
Senior Member
Joined: Jul 2015
Posts: 7,374
Likes: 3,220
From: NW Oregon
Bikes: 1982 Trek 930R Custom, '91 Diamondback Ascent w/ XT, XTR updates, Fuji Team Pro CF road flyer, Specialized Sirrus Gravel Convert, '09 Comencal Meta 5.5 XC, '02 Marin MBX500, '84 Gitane Criterium bike
How do the Bearing Races look, after cleaning? Is there ANY pitting/discoloration on the bearing Balls?
if both are clean and not pitted, then the "notchiness" was the Old Grease in lumps on the bearings/races, and all you need is to COMPLETELY clean the bearings and re-install everything, the Adjust them to the correct "No Slop, No Drag" setting.
Final Tightening of the lock ring, then the top nut WILL slightly tighten the Bearing adjustment, so a few tries will be needed. and sometimes, you'll get real lucky and everything works, firs try.
Tip: Double Check the install DIRECTION of the caged Bearings... they won't work if they aren't in the correct orientation to the races.
if both are clean and not pitted, then the "notchiness" was the Old Grease in lumps on the bearings/races, and all you need is to COMPLETELY clean the bearings and re-install everything, the Adjust them to the correct "No Slop, No Drag" setting.
Final Tightening of the lock ring, then the top nut WILL slightly tighten the Bearing adjustment, so a few tries will be needed. and sometimes, you'll get real lucky and everything works, firs try.
Tip: Double Check the install DIRECTION of the caged Bearings... they won't work if they aren't in the correct orientation to the races.
Last edited by maddog34; 07-15-24 at 10:37 AM.
07-16-24 | 12:00 AM
#29
Droid on a mission
Joined: May 2018
Posts: 1,214
Likes: 424
From: Palm Coast, FL
Bikes: Diamondback Wildwood Classic
It would raise an eyebrow and prompt me for further investigation. I run a volunteer bike shop and work on hundreds of bikes a year. The only time that a bearing cup just came out on its own, there was a crack in the head tube. They are normally pressed into place.
__________________
JoeTBM (The Bike Man) - I'm a black & white type of guy, the only gray in my life is the hair on my head
www.TheBikeMenOfFlaglerCounty.com
JoeTBM (The Bike Man) - I'm a black & white type of guy, the only gray in my life is the hair on my head
07-16-24 | 08:05 AM
#30
Old fart
Joined: Nov 2004
Posts: 26,348
Likes: 5,258
From: Appleton WI
Bikes: Several, mostly not name brands.
https://www.amazon.com/Genuine-Locti.../dp/B07BCDYD2C
