Crank Removal

To remove the cotter pin, don't fuck around tap-tap-tapping. You'll just deform the pin and it will never come out.

Put a strong metal thing on it - an old spanner or something, and the fucking WHACK it as hard as you damn well can. It should come out nice and easy in one hit, with no damage to the crank or axle.

Cheers for the suggestions!

Also for future reference, utfs.

Yeah, sorry about that - I did have a look around and figured that they would come off but I wanted to be sure before I started deforming anything.

http://www.parktool.com/repair/readhowto.asp?id=127

http://www.sheldonbrown.com/tooltips/cotterless.html

http://bicycletutor.com/replace-cotterless-cranks/

hippy you legend, thankyou!

So ive managed to somehow strip the thread on my LH crank bolt (on my bianchi pista 08).

Im at the stage where id be lucky to remove the bolt with a large allum key, how can this be removed?

Which part do you mean? If it is the bolt that holds the crank in place then you may need a bolt/screw extractor or have you cross threaded it?

Place end of bolt in vice and grind frame down until only bolt remains. Finish beer and watch tv.

Place end of bolt in vice and grind girlfriend. Finish beer and watch tv.

fixed

http://www.ccw-tools.com/Sealey/Vehicle-Service/Pullers-&-Slide-Hammers/Gear-Pullers/Sealey--AK78---Gear-Puller-Set-3pc-Triple-Leg/p-4-8-199-200-1169/

Place end of bolt in vice and grind frame down until only bolt remains. Finish beer and watch tv.

As unimportant as it may be - that is the funniest thing I have read on here for months.

I laughed, like a pig, a fat laughing pink pig struggling to get out of a deep pool of laugh juice.

Or something like that.

:D

So ive managed to somehow strip the thread on my LH crank bolt (on my bianchi pista 08).

Im at the stage where id be lucky to remove the bolt with a large allum key, how can this be removed?

Do you mean the thread or do you mean you have rounded off the hex head of the bolt ?

Do you mean the thread or do you mean you have rounded off the hex head of the bolt ?

If the latter, ignore my earlier suggestion.

You will have to drill it out starting with small pilot hole, if you reverse the drill it may unscrew the bolt for you keep trying as you increase the size of the drills, but the BB will be knackered in any case.

The more I think about this, the less likely it seems to me that you have actually stripped the threads on your crank bolt. That would require hulk-like force.

If you have just rounded off the allen key socket somehow, you need to get hold of a bolt extractor from Clerkenwell Screws and use that. Drill out as a last resort.

Well, to bask in my own stupidity, today taking some cranks off, right side off no problems.

Left side had a different bolt "ho hum" i think, proceed with crank puller "hmmm this is getting awfully tight and nothings happening". take it off only to discover i've truly mushed the washer into spindle. Any ideas how to get the fucking thing out? i have sprayed with WD40, its still mostly intact, just pushed down a bit in the middle. D'OH!

What washer? And where is it? Maybe pics would help.

If the washer is in the crank can't you knock it out from the reverse side?

here is my stupidity for all to see...

1 Attachment

Yeah a pic would help, but i think i see what your saying, do you mean you had the wrong size end caps to the crank puller on? and it gone inside the bb spindle threads?

no i just left the washer in by mistake and happily popped on the crank puller which has pushed the washer into the end of the spindle a little, making it difficult to pop out.

Ride around with it like that for a while and eventually it will fall off.

Yeah the crank will but that washers not budging I bet.

hhhm this could be tricky! Powerdrill and some small drill bits, lots of holes in straight lines from the centre and a small cold chisel to knock out the pieces of washer.

i would ride around with it like that but....i am in the middle of swapping bike parts over. this is the last f*cking part!

Put the old crank back on then!

You've made a right fcuking mess of that and you wanted to work part time in a bike shop ;o))