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 01-11-11, 05:18 PM   #1
ultraman6970
Senior Member
Thread Starter
 
Join Date: Dec 2005
Bikes:
Posts: 7,860
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Record C 8 speed D/T shifter bolt stucked

Hi guys got this bike with record c 8 speed d/t shifters and the right one (rd one) has its bolt jammed, it is stuck and no way to take it at least with a hand. There is a trick to get it out w/o having to grab a set of pliers to get the darn bolt out?

Thanks.
ultraman6970 is offline   Reply With Quote
Old 01-11-11, 06:06 PM   #2
FBinNY 
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Posts: 29,685
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 232 Post(s)
If it's the 5mm bolt that goes through the lever to the boss on the frame, no there's no trick except more torque.

It's possible the prior owner had issues with keeping the lever adjusted, and rather than fix it right he resorted to loctite.

Other possible causes include rusting in place when installed dry, or in some cases being forced into threads partly clogged with braze.

It's a standard 5x.8 metric screw, other than cosmetics and the wingnut head. I've seen the wings break off when forced, so your best option is to grab it with pliers using the wing for a purchase and turn it out. If you're careful you might salvage it, otherwise buy a replacement, but use a bottoming or plug tap to clean the thread first.
__________________
FB
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY is online now   Reply With Quote
Old 01-11-11, 06:20 PM   #3
ultraman6970
Senior Member
Thread Starter
 
Join Date: Dec 2005
Bikes:
Posts: 7,860
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks FBinNY... the wings came out hahaha Used a big ass set of pliers and came out after 2 turns, yes you were right there was blue loctite in the screw. I just managed to put the wings back into the screws, another quick question, those levers are friction? I know some models can be changed to friction but have no idea if this ones are able to do it, some way to know?

Uman.
ultraman6970 is offline   Reply With Quote
Old 01-11-11, 07:57 PM   #4
FBinNY 
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Posts: 29,685
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 232 Post(s)
To my knowledge, Campy never made levers that could change from index to friction. As long as they're complete, you should be able to rebuild them to their original condition. If your levers are friction the outer cover plate needs to be a tight fit on the boss, otherwise it'll work back and forth as you shift. I mention this because that might be the problem the prior had that led him to use loctite.

If you have the same issue, focus on improving the fit of the cover rather than the screw.
__________________
FB
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY is online now   Reply With Quote
Old 01-12-11, 08:01 AM   #5
ultraman6970
Senior Member
Thread Starter
 
Join Date: Dec 2005
Bikes:
Posts: 7,860
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
THanks I'll put a shimano 10 friction ones i have moving around then, no more problems. Love campy but some of their old products to respond to shimano really sucked hehe
ultraman6970 is offline   Reply With Quote
Old 01-12-11, 08:06 AM   #6
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,847
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 66 Post(s)
Quote:
Originally Posted by ultraman6970 View Post
THanks I'll put a shimano 10 friction ones i have moving around then, no more problems. Love campy but some of their old products to respond to shimano really sucked hehe
Yeah, as FBinNY mentioned early Campy friction dt levers were notorious for spontaneous loosening. I had a set on an older Bridgestone (so I could claim "Campy equipped" ) and after the third or fourth experience with "ghost shifting" when they came loose, I changed them for a set of Sun Tour Power Ratchet shifters and the problem disappeared for good.
HillRider is offline   Reply With Quote
Old 01-12-11, 05:40 PM   #7
ultraman6970
Senior Member
Thread Starter
 
Join Date: Dec 2005
Bikes:
Posts: 7,860
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thats the reason i moved to suntour superbe back in my racing days. The campy was were a nightmare. Got a set of shimano 9's and are pretty nice in friction. Oh i have a bike with the seatpost bolt campy so it means my bike is campy equiped also?
ultraman6970 is offline   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 07:30 AM.