Problem removing FSA crank

crescent
crescent Posts: 1,201
edited July 2016 in Workshop
I'm hoping someone can advise me please.
I have a bit of a creaking from, I suspect, the bottom bracket of my bike. I would like to remove the crank and BB and lubricate them and re-assemble. My problem is I cannot for the life of me get the non-drive side crank off. The photo below shows the crank in question. The cranks are FSA Omega and the socket in the centre is 8mm. However, it will not turn more than about 1/16th of a turn before binding. Am I right in thinking the round component marked with the arrows and the FSA logo is a locking nut/ring and, if so, is there a special tool to remove it? I should add, I work on my bikes all the time, regularly stripping them down and rebuilding them, although this is the first time I have tried to remove the BB on this particular bike. I have the correct tools and am generally quite proficient technically but I have not come across this before. It is the first time I have worked on this BB, all my other bikes are SRAM/Shimano BBs.
Thanks for any pointers.
Cheers

Sms3bW_k9frN8yL9C-clvL8NpNTgAX5Aw4d4OhaSUBk?size_mode=3&size=1600x1200
Bianchi ImpulsoBMC Teammachine SLR02 01Trek Domane AL3“When I see an adult on a bicycle, I do not despair for the future of the human race. “ ~H.G. Wells Edit - "Unless it's a BMX"

Comments

  • Monty Dog
    Monty Dog Posts: 20,614
    It's a self-extracting crank bolt - simply unscrew the 8mm Allen screw, it'll probably take more leverage than a regular Allen key as it's been tightened to 40Nm.
    Make mine an Italian, with Campagnolo on the side..
  • crescent
    crescent Posts: 1,201
    Monty Dog wrote:
    It's a self-extracting crank bolt - simply unscrew the 8mm Allen screw, it'll probably take more leverage than a regular Allen key as it's been tightened to 40Nm.

    Thanks for the prompt reply, I will persevere. I've removed self extracting cranks before but this is ridiculously tight, so tight that I thought the threads were picking up. Rule 5 and a bigger Allen Key it is then.
    Cheers.
    Bianchi ImpulsoBMC Teammachine SLR02 01Trek Domane AL3“When I see an adult on a bicycle, I do not despair for the future of the human race. “ ~H.G. Wells Edit - "Unless it's a BMX"
  • redvee
    redvee Posts: 11,922
    Same fitting as the FSA crank I removed lat week, a longer allen key and some MTFU.
    I've added a signature to prove it is still possible.
  • sharepointalex
    sharepointalex Posts: 33
    Had the exact same problem removing my old FSA crank - in the end I had to take it to a bike shop who had a breaker bar on hand - no way I was getting it off at home, needed a lot of force!!

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