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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.

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Old 09-29-12, 08:54 AM   #1
seedsbelize 
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new to headset adjustment

Hi All,
I bought a '91 Giant Yukon frameset from a bike co-op in Ohio, brought it down here, and assembled it. Not having a 36 mm headset wrench, I had it professionally adjusted, and I watched him do it. 40 km later, it's so loose I'm afraid to ride it home, but have no choice(I was only 15 km out). I fiddled with it myself, this morning, and could only get the slop out if the steering was also way tight. So I set it tight, put loctite on the threads, tightened down the locknut, and then backed it off incrementally. I know this isn't a proper fix, but don't know what is. New fork? New headset? both?
It loosens with the application of the front brakes.
Thanks,
Seeds
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Flubber.
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Old 09-29-12, 09:15 AM   #2
cny-bikeman 
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If yu had it adjusted why not take it back - should not have come out of adjustment that easily. There may be a missing lockwasher between upper race and loknut, as even without the headset wrench you should be able to gently hold the upper race with a protected pair of channelocks and tighten enough to hold. Really hard to tel what it needs remotely.
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There's no such thing as a routine repair.

Don't tell me what "should" be - either it is, it isn't, or do something about it.

If you think I'm being blunt take it as a compliment - if I thought you were too weak to handle the truth or a strong opinion I would not bother.

Please take the time to post clearly so we can answer quickly. All lowercase and multiple typos makes for a hard read. Thanks!
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Old 09-29-12, 09:33 AM   #3
JohnDThompson 
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Threaded or threadless headset?

If it's a threaded headsetand keeps loosening, examine the threads (both on the steer tube and threaded headset parts) for damage.
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Old 09-29-12, 09:38 AM   #4
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This guy is independent, and makes his money from the full carbon race types. He does my stuff more as a favor, and charges me practically nothing (75 cents to shim and press in the headset races, for example, on my road bike). Mostly I go to him for advice, as I learn to do my own work. So it's channel locks for me. I thought maybe there was an obvious issue. Guess not. Would the wrong size retainers cause this issue?

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