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 08-24-08, 10:36 AM   #1
RoMad
Senior Member
Thread Starter
 
RoMad's Avatar
 
Join Date: Feb 2007
Location: Citrus county Fl.
Bikes: Litespeed Tuscany , Lemond Poprad, 1970's Motobecane Grand Record
Posts: 780
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
What wrench do I need and where do I get it?

I have an FSA carbon crank on my bike and occasionally it makes a clicking noise once per revolution when I pedal. I have read quite a bit about this problem with this specific crank and so far have been able to retorque the allen bolt that holds the crank arm on. I know the bolt is aluminum and have read that some people have wrapped it with teflon tape and the problem went away. Where I need help is with the round "keeper" ring or spanner nut (not sure what it is called) that holds the allen bolt in. I can loosen the allen bolt but the nut on the outside of it needs to come out to let the allen bolt come out. This nut has a flat face and has holes evenly spaced for a special wrench to remove it. It has M27 #1 printed on it. My question is, what is the name of the tool I need to remove it and where can I get one?
RoMad is offline   Reply With Quote
Old 08-24-08, 10:42 AM   #2
DannoXYZ 
Senior Member
 
DannoXYZ's Avatar
 
Join Date: Jul 2005
Location: Saratoga, CA
Bikes:
Posts: 11,600
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Park Tool typically has any tool you'll need to work on a bike. You'll probably need a pin spanner like this:

DannoXYZ is offline   Reply With Quote
Old 08-24-08, 12:05 PM   #3
RoMad
Senior Member
Thread Starter
 
RoMad's Avatar
 
Join Date: Feb 2007
Location: Citrus county Fl.
Bikes: Litespeed Tuscany , Lemond Poprad, 1970's Motobecane Grand Record
Posts: 780
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thank you. I made one of these but the nut is in so tight that it just strips out the hole the pin goes in. I had one person holding it in and me trying to turn it. I think I will call FSA tomorrow and ask them for auggestions. I will also get a new steel bolt from them while I am at it. I think the problem is someone tightened it way too tight at some time.
RoMad is offline   Reply With Quote
Old 08-24-08, 12:23 PM   #4
turtle77
break-beats
 
turtle77's Avatar
 
Join Date: Dec 2005
Location: Pittsburgh
Bikes:
Posts: 143
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
That pin spanner is for a bottom bracket, no? Isn't the OP looking for a tool for the back of the crankarm bolts, or am I missing something?
turtle77 is offline   Reply With Quote
Old 08-24-08, 12:23 PM   #5
DannoXYZ 
Senior Member
 
DannoXYZ's Avatar
 
Join Date: Jul 2005
Location: Saratoga, CA
Bikes:
Posts: 11,600
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Follow the link to the Park Tool site and they say it's used for this:



Hmm... it should be tight because the nut pushes on it in order to extract the crank. In order to not strip the hole, you need a smooth pin that fits into the hole precisely. Threading some bolts through a plate won't work. The Park tool comes 2.3 and 2.7mm sizes, pick the one that fits your application. A better tool would b an adaptor that fits standard 3/8" ratchet wrenches, then you can develop the necessary torque without having to apply so much force, which typically causes tools to wobble and strip.

And going for a steel replacement bolt is the way to go. Saving 2gm in a bolt that easily corrodes and strips is such a maintenance nightmare.
DannoXYZ is offline   Reply With Quote
Old 08-25-08, 09:43 AM   #6
DMF 
Elitist Troglodyte
 
DMF's Avatar
 
Join Date: Jun 2006
Location: Dallas
Bikes: 03 Raleigh Professional (steel)
Posts: 6,924
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
There are two approaches: 1) Remove the bolt; 2) Remove the crank and the bolt with it. Both are viable and option 2 requires no special tools (assuming that it's self-extracting like the one shown in Danno's picture). If your purpose is to wrap the bolt threads in teflon tape, enough of the threads will be exposed once you get the crank off.

But frankly, I doubt that tape will help. More likely you're not supplying enough torque.

How are you torquing it? Do you have a torque wrench?
__________________
Stupidity got us into this mess - why can't it get us out?

- Will Rogers

Last edited by DMF; 08-25-08 at 09:54 AM.
DMF is offline   Reply With Quote
Old 08-25-08, 10:14 AM   #7
mcoomer
Rat Bastard
 
mcoomer's Avatar
 
Join Date: Jul 2006
Location: Sammamish, WA
Bikes: Cannondale Prophet, Specialized S-Works SL2, Specialized S-Works Stumpjumper
Posts: 1,504
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
What crank are you working on? We might be able to provide more help if we know what you're working on.

FWIW...I just had an FSA SLK warranty repair due to crankarm noise. They replaced the left crankarm at no charge. As you noted, this is a known issue so you might want to take it into the shop and request they send it to FSA for warranty consideration.

Mike
mcoomer is offline   Reply With Quote
Old 09-25-08, 05:10 PM   #8
jcronje
Newbie
 
Join Date: Nov 2006
Bikes:
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
What you need is FSA tool no. EE023, the MegaExo Pin Tool, available here for a mere $39.99 at the FSA web store.

I have not been able to find anyone else (Park, Pedro's, etc.) that makes something like this.
jcronje is offline   Reply With Quote
Old 09-25-08, 09:16 PM   #9
nitropowered
Senior Member
 
Join Date: Dec 2004
Location: Athens, Ohio
Bikes: Custom Custom Custom
Posts: 5,104
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
shimano chainring bolt/crank extractor spanner works
nitropowered 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 04:40 PM.