Tenacious stem
#26
Man, I'm confused 
Betwixt all the speculation, assumption, vague posts from the OP regarding steps taken to rectify, and some non-standard parts descriptions...
OP: when you write "wedge nut", do you mean the stem bolt? If so, have you completely removed it? If so, can you hear/feel the wedge moving around after removal of the stem bolt?
I feel like we're all proverbially grasping different parts of the elephant while blindfolded, and coming up with all manner of different ideas about what we've got in our hands.
DD

Betwixt all the speculation, assumption, vague posts from the OP regarding steps taken to rectify, and some non-standard parts descriptions...
OP: when you write "wedge nut", do you mean the stem bolt? If so, have you completely removed it? If so, can you hear/feel the wedge moving around after removal of the stem bolt?
I feel like we're all proverbially grasping different parts of the elephant while blindfolded, and coming up with all manner of different ideas about what we've got in our hands.
DD
#27
Senior Member


Joined: Jan 2013
Posts: 3,139
Likes: 877
Bikes: too many sparkly Italians, some sweet Americans and a couple interesting Japanese
OP, please all are trying to help, but this is frustrating, Drillium Dude is asking the same question I asked a dozen posts ago. Maybe we have a semantics problem, could you please check out Park Tools website repair help for quill stems removal and use their vernacular to describe what is not working?
#28
Freshman Member



Joined: Mar 2014
Posts: 5,870
Likes: 4,162
From: City of Angels
Bikes: A few too many
I assume that the long bolt has been removed completely, if not remove it and set it aside. Bounce the frame, can you hear the wedge nut bouncing around inside the head tube if not it may be frozen on the stem.
I would remove the wheel and the front brake, flip it over and take a look in there to see if the wedge bolt is loose if not it is still hung up inside of the fork tube and that may be where it may be binding.
You say it will rotate and move, without using a lot of force (not want to force it) will it move "down"? I add more lubricant from "below and then try moving it up and down.
Take your time this is a mechanical obstruction, not brain surgery.
Good Luck, Ben
rereading the thread [MENTION=9425]madpogue[/MENTION] already made similar comments
I would remove the wheel and the front brake, flip it over and take a look in there to see if the wedge bolt is loose if not it is still hung up inside of the fork tube and that may be where it may be binding.
You say it will rotate and move, without using a lot of force (not want to force it) will it move "down"? I add more lubricant from "below and then try moving it up and down.
Take your time this is a mechanical obstruction, not brain surgery.
Good Luck, Ben
rereading the thread [MENTION=9425]madpogue[/MENTION] already made similar comments
__________________
"EVERY PERSON IS GUILTY OF ALL THE GOOD THEY DID NOT DO"
Voltaire
Voice recognition may sometimes create odd spelling and grammatical errors
"EVERY PERSON IS GUILTY OF ALL THE GOOD THEY DID NOT DO"
Voltaire
Voice recognition may sometimes create odd spelling and grammatical errors
Last edited by xiaoman1; 09-21-22 at 02:43 PM.
#29
Senior Member

Joined: Dec 2020
Posts: 6,998
Likes: 3,845
From: Wake Forest, NC
Bikes: 1989 Cinelli Supercorsa
Do what obrentharris (and no doubt others) said: loosen the bolt a few threads, put a piece of wood on top of the bolt, and whack it with a hammer to dislodge the wedge.
#30
Freshman Member



Joined: Mar 2014
Posts: 5,870
Likes: 4,162
From: City of Angels
Bikes: A few too many
If in fact the wedge was "already" loose (moving side to side) at the stem.....the way to confirm this would be "seeing" it at the bottom of the fork which is easier when removing the wheel and brake or "hearing" around bouncing in the tube.
If the bolt is in fact already loose and this can be "confirmed", then something else is causing the problem.
JM2C's, Ben
__________________
"EVERY PERSON IS GUILTY OF ALL THE GOOD THEY DID NOT DO"
Voltaire
Voice recognition may sometimes create odd spelling and grammatical errors
"EVERY PERSON IS GUILTY OF ALL THE GOOD THEY DID NOT DO"
Voltaire
Voice recognition may sometimes create odd spelling and grammatical errors
Last edited by xiaoman1; 09-21-22 at 09:44 AM.
#31
Senior Member


Joined: Jan 2004
Posts: 6,169
Likes: 1,797
From: Madison, WI USA
If the stem is turning as much as it is, it's unlikely that it's not dislodged. And if the stem is broken and being held together by the bolt / wedge nut, then it does need to be removed completely. At least, of the few broken stems I've encountered, I've had to remove the bolt to release not only the wedge, but the broken-off lower bit of the stem.
#32
Freshman Member



Joined: Mar 2014
Posts: 5,870
Likes: 4,162
From: City of Angels
Bikes: A few too many
Dbl post
__________________
"EVERY PERSON IS GUILTY OF ALL THE GOOD THEY DID NOT DO"
Voltaire
Voice recognition may sometimes create odd spelling and grammatical errors
"EVERY PERSON IS GUILTY OF ALL THE GOOD THEY DID NOT DO"
Voltaire
Voice recognition may sometimes create odd spelling and grammatical errors
#33
Passista


Joined: Jul 2005
Posts: 8,247
Likes: 1,211
Bikes: 1998 Pinarello Asolo, 1992 KHS Montaña pro, 1980 Raleigh DL-1, IGH Hybrid, IGH Utility
#36
#38
So, I made a visit to the remain of the frame.
The wedge nut is out.
The wedge is stuck in. Wont move. Reapplied WD40.
Tried to screw the wedge nut in, but only 6mm screw in instead of 5cm. I more, I have to use some force.
I tapped the stem in and it must taken its place into the wedge as it wont turn either way, nor move now.
I will try tomorrow to tap on the wedge nut with a harmer and wood. Could not do it today. Daylight restriction applied.
Thanks you all for your help. Never had to fight against a stubborn wedge before. And I have 5 vintage bikes..
Just be patient if possible. Remember I am a newbie. Still learning.
The wedge nut is out.
The wedge is stuck in. Wont move. Reapplied WD40.
Tried to screw the wedge nut in, but only 6mm screw in instead of 5cm. I more, I have to use some force.
I tapped the stem in and it must taken its place into the wedge as it wont turn either way, nor move now.
I will try tomorrow to tap on the wedge nut with a harmer and wood. Could not do it today. Daylight restriction applied.
Thanks you all for your help. Never had to fight against a stubborn wedge before. And I have 5 vintage bikes..
Just be patient if possible. Remember I am a newbie. Still learning.
#39
So, I made a visit to the remain of the frame.
The wedge nut is out.
The wedge is stuck in. Wont move. Reapplied WD40.
Tried to screw the wedge nut in, but only 6mm screw in instead of 5cm. If more, I have to use some force.
I tapped the stem in and it must taken its place into the wedge as it wont turn either way, nor move now.
I will try tomorrow to tap on the wedge nut with a harmer and wood. Could not do it today. Daylight restriction applied.
Thanks you all for your help. Never had to fight against a stubborn wedge before. And I have 5 vintage bikes..
Just be patient if possible. Remember I am a newbie. Still learning.
The wedge nut is out.
The wedge is stuck in. Wont move. Reapplied WD40.
Tried to screw the wedge nut in, but only 6mm screw in instead of 5cm. If more, I have to use some force.
I tapped the stem in and it must taken its place into the wedge as it wont turn either way, nor move now.
I will try tomorrow to tap on the wedge nut with a harmer and wood. Could not do it today. Daylight restriction applied.
Thanks you all for your help. Never had to fight against a stubborn wedge before. And I have 5 vintage bikes..
Just be patient if possible. Remember I am a newbie. Still learning.
#40
Senior Member


Joined: Jan 2004
Posts: 6,169
Likes: 1,797
From: Madison, WI USA
How are you tapping on the wedge? From underneath? That might be making things worse.
If you have the wheel and the brake off, can you cast enough light into the steerer tube from underneath to get a photo from there?
Wait - how can the wedge be out and stuck at the same time? This really is curiouser and curiouser......
If you have the wheel and the brake off, can you cast enough light into the steerer tube from underneath to get a photo from there?
Wait - how can the wedge be out and stuck at the same time? This really is curiouser and curiouser......
Last edited by madpogue; 09-21-22 at 12:35 PM.
#41
Senior Member

Joined: Dec 2020
Posts: 6,998
Likes: 3,845
From: Wake Forest, NC
Bikes: 1989 Cinelli Supercorsa
#42
Senior Member

Joined: Sep 2005
Posts: 3,487
Likes: 1,552
From: Oakland, CA
Bikes: '82 Univega Competizione, '72 Motobecane Grand Record, '83 Mercian KOM Touring, '85 Univega Alpina Uno, '76 Eisentraut Limited
Come on, guys. This particular stem has one bolt, one wedge (unless there is something hidden in there). He had removed the bolt, but he screwed it back in. It goes in 6mm now, but previously went in 5cm without having to force it. He tap-tap-tapped the stem, but not the bolt, and says he'll tap the bolt tomorrow. After he tapped the stem, he says the stem no longer moves.
It sounds like the wedge is still stuck to the stem, so when he taps the bolt tomorrow, it will hopefully give the desired result.
Connoisseur, does that look like an accurate plot summary so far?
It sounds like the wedge is still stuck to the stem, so when he taps the bolt tomorrow, it will hopefully give the desired result.
Connoisseur, does that look like an accurate plot summary so far?
#43
Senior Member


Joined: Jan 2004
Posts: 6,169
Likes: 1,797
From: Madison, WI USA
Well that would change.... er.... everything. And it would, astonishingly, make many of the posts make more sense.
Well, the wedge is a nut, so it appeared that the OP was simply using the two terms interchangeably.
This is definitely the time to start observing from underneath, as has been suggested. If the stem will move at all, it would be good to know if the wedge moves with it, and this can be observed from underneath.
BTW, WD40 is of little to no use here. It's not a penetrant, and is a mediocre lubricant. It's actually a water displacer (thus the name). Something like PB-Blaster or Kroil, or even a degreasing solvent, would have more effect.
This is definitely the time to start observing from underneath, as has been suggested. If the stem will move at all, it would be good to know if the wedge moves with it, and this can be observed from underneath.
BTW, WD40 is of little to no use here. It's not a penetrant, and is a mediocre lubricant. It's actually a water displacer (thus the name). Something like PB-Blaster or Kroil, or even a degreasing solvent, would have more effect.
#44
Freshman Member



Joined: Mar 2014
Posts: 5,870
Likes: 4,162
From: City of Angels
Bikes: A few too many
Technically I think both could be considered correct...that is, unless we are playing golf, then a wedge would be a sub-iron.....This thread has become so protracted and confusing that I am not sure about anything any more.....other than I want to see the outcome...errrr, it come out.
Best, Ben

Best, Ben
__________________
"EVERY PERSON IS GUILTY OF ALL THE GOOD THEY DID NOT DO"
Voltaire
Voice recognition may sometimes create odd spelling and grammatical errors
"EVERY PERSON IS GUILTY OF ALL THE GOOD THEY DID NOT DO"
Voltaire
Voice recognition may sometimes create odd spelling and grammatical errors
Last edited by xiaoman1; 09-21-22 at 02:50 PM.
#45
Freshman Member



Joined: Mar 2014
Posts: 5,870
Likes: 4,162
From: City of Angels
Bikes: A few too many
Come on, guys. This particular stem has one bolt, one wedge (unless there is something hidden in there). He had removed the bolt, but he screwed it back in. It goes in 6mm now, but previously went in 5cm without having to force it. He tap-tap-tapped the stem, but not the bolt, and says he'll tap the bolt tomorrow. After he tapped the stem, he says the stem no longer moves.
It sounds like the wedge is still stuck to the stem, so when he taps the bolt tomorrow, it will hopefully give the desired result.
Connoisseur, does that look like an accurate plot summary so far?
It sounds like the wedge is still stuck to the stem, so when he taps the bolt tomorrow, it will hopefully give the desired result.
Connoisseur, does that look like an accurate plot summary so far?
__________________
"EVERY PERSON IS GUILTY OF ALL THE GOOD THEY DID NOT DO"
Voltaire
Voice recognition may sometimes create odd spelling and grammatical errors
"EVERY PERSON IS GUILTY OF ALL THE GOOD THEY DID NOT DO"
Voltaire
Voice recognition may sometimes create odd spelling and grammatical errors
#46
Senior Member

Joined: Sep 2005
Posts: 3,487
Likes: 1,552
From: Oakland, CA
Bikes: '82 Univega Competizione, '72 Motobecane Grand Record, '83 Mercian KOM Touring, '85 Univega Alpina Uno, '76 Eisentraut Limited
#47
Freshman Member



Joined: Mar 2014
Posts: 5,870
Likes: 4,162
From: City of Angels
Bikes: A few too many
#48
Edumacator




Joined: Jan 2018
Posts: 9,624
Likes: 5,111
From: Goose Creek, SC
Bikes: More than the people who ride them...oy.
Is it possible that an over tightened stem bolt deformed the stem bottom with the wedge and the wedge got stuck?
Maybe the inner steerer ovaled out?
Maybe the inner steerer ovaled out?
__________________
1987 Crest C'dale, 1987 Basso Gap, 1992 Rossin EL, 1990 Van Tuyl, 1985 Trek 670, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Isoard, 1987 Nishiki Tri-A, 1981 Faggin, 1996 C'dale M500, 1984 Mercian Pro, 1982 AD SuperLeicht, 1985 Massi ?, 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super, 1971 Raleigh Internat'l, 1998 Corratec U+D, 1991 Peugeot Slimestone, 1987 Bianchi Volpe, 1995 Trek 750
1987 Crest C'dale, 1987 Basso Gap, 1992 Rossin EL, 1990 Van Tuyl, 1985 Trek 670, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Isoard, 1987 Nishiki Tri-A, 1981 Faggin, 1996 C'dale M500, 1984 Mercian Pro, 1982 AD SuperLeicht, 1985 Massi ?, 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super, 1971 Raleigh Internat'l, 1998 Corratec U+D, 1991 Peugeot Slimestone, 1987 Bianchi Volpe, 1995 Trek 750
#49

C - stem bolt out, or screw in by 6-7mm
D - wedge stuck in
A - Quill stem was moving, now stuck with wedge.
Yesterday tap on C -bolt with rubber mallet no change.
Today will tap on C -bolt with harmer and wood.
I glad to be some sort of amusement for some.
I'm laughing at it myself with some sort of frustration..
I could seen that the wedge is stuck but I did not 😇😭
Will let you know when home.
Last edited by ConnoisseurEqua; 09-22-22 at 08:36 AM.
#50
Freshman Member



Joined: Mar 2014
Posts: 5,870
Likes: 4,162
From: City of Angels
Bikes: A few too many
OP,
I suspect if the bolt is still connected to the wedge "nut" and you have loosened the bolt enough, a hard blow with a hammer should dislodge it. I am glad that you found the diagram that you posted, it will be helpful if further discussion is necessary......Wishing you much success.
FYI.......A wedge can also be a nut if the wedge is tapped and threaded to accept a bolt....




Best, Ben
I suspect if the bolt is still connected to the wedge "nut" and you have loosened the bolt enough, a hard blow with a hammer should dislodge it. I am glad that you found the diagram that you posted, it will be helpful if further discussion is necessary......Wishing you much success.
FYI.......A wedge can also be a nut if the wedge is tapped and threaded to accept a bolt....





Best, Ben
__________________
"EVERY PERSON IS GUILTY OF ALL THE GOOD THEY DID NOT DO"
Voltaire
Voice recognition may sometimes create odd spelling and grammatical errors
"EVERY PERSON IS GUILTY OF ALL THE GOOD THEY DID NOT DO"
Voltaire
Voice recognition may sometimes create odd spelling and grammatical errors
Last edited by xiaoman1; 09-22-22 at 09:46 AM.





