IOLO Posted January 26, 2005 Report Share Posted January 26, 2005 help i cant get my fixed cog off my tensiles!!!!! what can i do,, ive tried a chain whip with crank in vice.. i then extended the chain wip with a steel tube,, but this bent my chain whip. so i made a new one from a long steel box tube.. but this time the chain pressed into the tube wall loads.. iv tried heating it a little,,(kettle),, and iv but WD40 all over it. grrrr help ! im considering cutting the cog off.. but it did cost £18. and its nice powder coated steel. Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted January 26, 2005 Report Share Posted January 26, 2005 Bash the lot in a freezer. Boil kettle. Pour a tiny bit of boiling water on the sprocket, to heat it (and only it) up. Get some blocks of wood, clamp the sprocket as hard as you can in a nicely fixed down vice. Bash the end of the crank arm - the 'shock' will help to release it. Release agent, like Plusgas, may help. Good luck! Quote Link to comment Share on other sites More sharing options...
dave85 Posted January 26, 2005 Report Share Posted January 26, 2005 (edited) I'm not sure how effective this will be, but cooling the whole lot down might help, the alloy of the crank should shrink more than the steel cog. Worth a whirl before you break out the angle grinder anyway :) EDIT: f**k me i get slower by the day :"> Edited January 26, 2005 by dave85 Quote Link to comment Share on other sites More sharing options...
roozor Posted January 26, 2005 Report Share Posted January 26, 2005 I just literally went into my LBS to get them to take off my sprocket from my old onza hub as it was well and truley on there! Get them to do it, they got the propper equip and muscle! Quote Link to comment Share on other sites More sharing options...
JT! Posted January 26, 2005 Report Share Posted January 26, 2005 Find a wooden vice. And lock it in place. Mind you this will leave marks or your vice. The bash the crankarm with a mallet. Worked with mine! :) Quote Link to comment Share on other sites More sharing options...
CalopS Posted January 26, 2005 Report Share Posted January 26, 2005 take it to a good bike shop, itll only cost 5 pounds and itll save u all this hassle :) Quote Link to comment Share on other sites More sharing options...
IOLO Posted January 26, 2005 Author Report Share Posted January 26, 2005 (edited) its ok,, scenario over!! ye freezer,,, then kettle on steel. then wack.. JUST, did it. what i kafufle thanks every 1 for quik replys. really is good when your stuck and you can get some more oppinions online and sort a job, all in about 15 mins.. thanks Edited January 26, 2005 by IOLO Quote Link to comment Share on other sites More sharing options...
Da Make Posted January 26, 2005 Report Share Posted January 26, 2005 (edited) Remember to smear some lubricant to threads before you put the new one on. I used "molydbenium di sulfidi" grease, my mate used copper paste. (I'm quite sure that you know this though...) Edited January 26, 2005 by Da Make Quote Link to comment Share on other sites More sharing options...
Tomy P Posted January 26, 2005 Report Share Posted January 26, 2005 At work, I used a Var Chain whip, its about 1 and a half foot long, clamped that into a bike jig then used a nail and some zip ties to hold the cog/wheel in the whip. then a mate and i literally unscrewed it using the leverage of the wheel. any halfords should be able to do it. tom Quote Link to comment Share on other sites More sharing options...
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