RADBMX.CO.UK
Technical & Reference Section => Tech and Restoration => Topic started by: StellaAtoiz on March 30, 2011, 05:46 PM
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Gents.
I have removed the cap, I have removed the retaining nut......I have soaked it in WD40.......I have hit the fookin thing with a rubber mallet.........why won't my crank arm come off ??? :'(
Am I doing...or not doing something so obviously stupidly wrong? >:(
(http://www.radbmx.co.uk/archive/albums/tt244/StellaArtoiz/IMG_0745.jpg)
(http://www.radbmx.co.uk/archive/albums/tt244/StellaArtoiz/IMG_0748.jpg)
(http://www.radbmx.co.uk/archive/albums/tt244/StellaArtoiz/IMG_0749.jpg)
(http://www.radbmx.co.uk/archive/albums/tt244/StellaArtoiz/IMG_0750.jpg)
(http://www.radbmx.co.uk/archive/albums/tt244/StellaArtoiz/IMG_0752.jpg)
(http://www.radbmx.co.uk/archive/albums/tt244/StellaArtoiz/IMG_0753.jpg)
(http://www.radbmx.co.uk/archive/albums/tt244/StellaArtoiz/IMG_0754.jpg)
Thanks for your time :daumenhoch:
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Im not 100% sure but you might be able to get a special crank pulling tool (your lbs might have one) that would get that off no probs.
I know they they are available for new cranks but just not sure if they'd work on an os crank like that.
Look something like this,
http://www.google.com/images?hl=en&q=crank%20puller&rlz=1B3GGLL_enHK419HK419&um=1&ie=UTF-8&source=og&sa=N&tab=wi&biw=1280&bih=587
Good luck! ;)
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Yeah you need an crank arm extraction tool. Think you can get them on ebay or chain reaction. Make sure you get the right size though there are a few that fit different size spindles.
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Alloy (crank arm) to steel (BB spindle) fuses really easy after time and dampness
Not as bad as the old alloy seatpost stuck in the steel frame ploy , due to less contact area ;)
An extractor like Xgoose says would easy do the trick
http://cgi.ebay.co.uk/Icetoolz-Crank-Extractor-Tool-NEW-Suits-Splined-Square-/360294203643?pt=UK_sportsleisure_cycling_bikeparts_SR&hash=item53e33540fb#ht_500wt_922
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Many thanks guys - that's a great help :daumenhoch:
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Yep, you need a crank puller Jase!
Fookin hell bud, you call us northern folk stupid..
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Yep, you need a crank puller Jase!
Fookin hell bud, you call us northern folk stupid..
Spen.
That sounds like I might have to get my hands dirty :shocked:
When are you coming down south next??.......or can you send one of your natives down here to do it for me :coolsmiley:
:daumenhoch:
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Just post it to me bud :daumenhoch:
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never used an extractor - just a nice peice of wood (used as a drive near to the nut end of the crank) and a wood mallet..
Works everytime - well so far anyway!
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yeah Sid that works as well :daumenhoch:
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Sid.
I was whacking the fcuk out of it with an 8lb sledge hammer against a piece of wood in the end and it was not moving an millimetre....I stopped as I thought I might damage the frame :D
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Heat...Alloy expands quicker than steel. Boiling water then crank extractor or neandatholstick and piece of wood :daumenhoch:
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Do not hit it with stuff jase , use the proper tool for the job . Invest in a crank puller but take it easy as alloy threads strip soooo easy, wind it in all the way then put some tention on it and pop it on the radiator . If it won't budge sent it tup north and we will hit it with a proper northern monkey wrench . :laugh:
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steel chisel and lump hamer works everytime.... damages the cranks mind... :-\
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Ive just brought a crank puller from Halfords for £9.99 . Needed to put an extension pole on the end of it though to tighten it more as i couldn't get enough force from the thing . Does work though and only a tenner.
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Use the right tool for the job - trouble is I can never find anything when I need to and I tend to use my knockommeter..
I often find that hitting it 'on' first works (taps - not extreme force), like tightening a stuck nut will haveten free it (I slight nip, not a full turn) , rather than trying to lossen it etc - but what works for one :-X
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Your not far from me, I have a crank puller you can borrow. :daumenhoch: