C5ALIVE Forum

C5 Help => TECH TIPS from C5Martin => Topic started by: c5martin on 21, September, 2008 - 21:43:50

Title: Crank (Bottom bracket) Removal
Post by: c5martin on 21, September, 2008 - 21:43:50

Remove pedal caps
Remove Front Sprocket Covers
Fit pedal crank removal tool (can be purchased at any bicycle shop)
Remove pedals
Spin/Knock off locking ring on Near side crank
Fit crank removal star to crank bolt
NOTE: NearSide (left hand when sat on the c5) is std screw thread (Clock wise tighten : Anti-clockwise Loosen)
OffSide is reverse thread.
Spin off
Slide out crank (sometimes called bottom bracket) with ball races.

Refitting is the reverse of removing - however ensure the ball races are thoughly cleaned and well greased along with the bearing cups.

Title: Re: Crank (Bottom bracket) Removal
Post by: Karl on 14, August, 2009 - 08:43:15

I took these piccies whilst repairing "Dave", thought they might help visualise what c5martin is saying;

(http://i74.photobucket.com/albums/i257/1stbooboo/c5repair001.jpg)

(http://i74.photobucket.com/albums/i257/1stbooboo/c5repair002.jpg)

(http://i74.photobucket.com/albums/i257/1stbooboo/c5repair004.jpg)

(http://i74.photobucket.com/albums/i257/1stbooboo/c5repair005.jpg)

The hammer and screwdriver might not be the proper tools, but used carefully they do the job  :)

There is a silver locking ring on the other side that can also be undone using the same method..

Title: Re: Crank (Bottom bracket) Removal
Post by: Retro Andy on 14, August, 2009 - 12:28:43

I wish these pictures were on here when I was dismantling my C5, as it was years since I had removed such a thing of a bike and was'nt 100% sure what I was doing at the time.

Retro Andy.

Title: Re: Crank (Bottom bracket) Removal
Post by: Nitrowing on 20, August, 2009 - 21:32:48

Has anyone got the bottom bracket size? I'd like to replace mine with a sealed unit want to strip it apart and then sit around with it unusable.

Title: Re: Crank (Bottom bracket) Removal
Post by: Umpa on 21, August, 2009 - 10:33:37

Quote from: Nitrowing on  20, August, 2009  - 21:32:48

Has anyone got the bottom bracket size? I'd like to replace mine with a sealed unit want to strip it apart and then sit around with it unusable.

eh?

Title: Re: Crank (Bottom bracket) Removal
Post by: Nitrowing on 21, August, 2009 - 22:13:51

Quote from: Umpa on  21, August, 2009  - 10:33:37

Quote from: Nitrowing on  20, August, 2009  - 21:32:48

Has anyone got the bottom bracket size? I'd like to replace mine with a sealed unit want to strip it apart and then sit around with it unusable.

eh?

Bottom brackets are made as sealed units these days - you fit and forget! I have a titanium lying around from when I owned a bicycle shop but I don't want to pull my C5 apart to pull the original bearing set out to find I don't have the right sized replacement.

Title: Re: Crank (Bottom bracket) Removal
Post by: techytype on 05, November, 2009 - 17:57:26

just thought i'd mention, due to this thread i've bought one of these off Ebay -:

BIKE CRANK PEDAL ARM EXTRACTOR / FITTING TOOL NEW

(item no.) 390108005029 - Price: £4.99 + £2.50 postage

there were 4 left

regs
alan

Title: Re: Crank (Bottom bracket) Removal
Post by: C5-Ben on 10, January, 2010 - 15:12:37

Hi,

Does someone know if that Ebay Article    370308656318  could i use to remove the both pedals complete from the midlle gear bearing? Because I'm trying to dismantle the body completly.

Thx,
Ben

Title: Re: Crank (Bottom bracket) Removal
Post by: Karl on 10, January, 2010 - 18:41:35

Quote from: C5-Ben on  10, January, 2010  - 15:12:37

Hi,

Does someone know if that Ebay Article    370308656318  could i use to remove the both pedals complete from the midlle gear bearing? Because I'm trying to dismantle the body completly.

Thx,
Ben

It looks like the same as my one, so should be ok.