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#21
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Weird Instability Problem When Putting The Power Down...
in message . com,
Christopher Harrison ') wrote: Many thanks again, guys, for all your suggestions... I've given my bike a good, thorough looking-over today and what I found was that all tubes and stays are straight and uncracked, as are the forks; and no joints are compromised. As far as I can tell, the frame is in good condition and in proper alignment. What I did notice, however, was that when I rotated the headset, a "clicky" noise emanated from the head tube. It moved freely, but you could tell that there was something amiss... So I took the headset apart as much as I dared/could [my mechanical skills are limited!] and cleaned-up what I could see and got some oil in there. When I put it back together, the headset moved more freely, but the clicky noise turned into a consistent, and rather unpleasant, grinding sound. You may have heard about the excessive-flooding in England, just recently, on the news. I live in the affected region and, whilst my bike wasn't directly involved, it's taken-on a lot more water and dirt than usual just lately -- and I haven't been able to clean it (until today)... As such, my best guess would be that perhaps the bearings in the headset have become compromised (that is, water-logged!). Would anyone concur: i.e. Given that, despite my lack of experience, the frame looks fine to me and the horrible noise coming from the head tube, would that be enough to cause this lurching problem? Completely collapsed balls in the headset /might/ cause your problem, but I'd seriously advise getting someone experienced to give it a good look over. A new headset won't cost much, but some of the other things it could be are dangerous. -- (Simon Brooke) http://www.jasmine.org.uk/~simon/ [ This .sig intentionally left blank ] |
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#22
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Weird Instability Problem When Putting The Power Down...
In article . com,
Christopher Harrison wrote: Many thanks again, guys, for all your suggestions... I've given my bike a good, thorough looking-over today and what I found was that all tubes and stays are straight and uncracked, as are the forks; and no joints are compromised. As far as I can tell, the frame is in good condition and in proper alignment. What I did notice, however, was that when I rotated the headset, a "clicky" noise emanated from the head tube. It moved freely, but you could tell that there was something amiss... So I took the headset apart as much as I dared/could [my mechanical skills are limited!] and cleaned-up what I could see and got some oil in there. When I put it back together, the headset moved more freely, but the clicky noise turned into a consistent, and rather unpleasant, grinding sound. You want grease in a headset, and lot's of it. However, even the slightest binding can cause very wierd handling. _ Booker C. Bense |
#23
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Weird Instability Problem When Putting The Power Down...
On 6 Ago, 18:55, Booker C. Bense You want grease in a headset, and
lot's of it. However, even the slightest binding can cause very wierd handling. After reading all this, without placing any money on the initial issue, I would urge Christopher to have someone adjust the headset, as finely as needed with the proper tools. Should the handling problem persist, I would take the bike to a frambuilder's to have it professionally checked. Sergio Pisa |
#24
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Weird Instability Problem When Putting The Power Down...
"sergio" wrote in message
oups.com... On 6 Ago, 18:55, Booker C. Bense You want grease in a headset, and lot's of it. However, even the slightest binding can cause very wierd handling. After reading all this, without placing any money on the initial issue, I would urge Christopher to have someone adjust the headset, as finely as needed with the proper tools. Should the handling problem persist, I would take the bike to a frambuilder's to have it professionally checked. Sergio - he already identified the problem as a notched headset. Between that and a too-tight adjustment you can have some pretty strange handling problems. Note that GREASE isn't the answer - he needs a new headset and preferably a roller bearing version which lasts forever and more. |
#25
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Weird Instability Problem When Putting The Power Down...
Hello
I got my bike back from its service yesterday -- the headset was replaced -- and have just taken it for a good ride... It's fixed! Yay Thanks again to everyone for helping me pin-point the problem. It's most appreciated |
#26
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Weird Instability Problem When Putting The Power Down...
"Christopher Harrison" wrote in message
ups.com... Hello I got my bike back from its service yesterday -- the headset was replaced -- and have just taken it for a good ride... It's fixed! Yay Thanks again to everyone for helping me pin-point the problem. It's most appreciated As a note - that didn't happen because you were in a fall. The headset had to be bad for a long time to get to that point. |
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