Prince Albert Cycles Posted August 6, 2019 Share I have been battling to remove a set of Eggbeater pedals from Shimano cranks. The bike has been standing unused for years. Eggbeaters do not have a 15 mm space outside of the crank to fit a crank spanner but only have the allen key inside of the crank . Will heat/cold treatment work without weakening the cranks? Link to comment Share on other sites More sharing options...
Vetseun Posted August 6, 2019 Share A good soaking with spook piss..Should do the trick Link to comment Share on other sites More sharing options...
Prince Albert Cycles Posted August 6, 2019 Share Have tried spookpis MORNE 1 Link to comment Share on other sites More sharing options...
MudLark Posted August 6, 2019 Share Spanjaard sell a special penetrating oil, which will often get in and release seized interfaces when nothing else works. But the bottle isn't cheap… :-( I would not apply heat to cranks, especially not if you're talking about using something like a Benzomatic. The cranks are normally made of aluminium and aluminium has a pretty low melting point. Link to comment Share on other sites More sharing options...
SwissVan Posted August 6, 2019 Share Shimano again!! Do any of their products work? Sorry I can't be of more help than that.Sorry, you shouldn’t blame shimano for bad maintenance practices of the last person who installed them blinx, Fubar, Danger Dassie and 2 others 5 Link to comment Share on other sites More sharing options...
Swany05 Posted August 6, 2019 Share Yeah dont use heat man, Personally id remove the crank arm and shove it in a vice. try and extend the allen key using the spanner trick. That should work SwissVan and DJR 2 Link to comment Share on other sites More sharing options...
Jewbacca Posted August 6, 2019 Share Yeah dont use heat man, Personally id remove the crank arm and shove it in a vice. try and extend the allen key using the spanner trick. That should work This, but I would put the allen key in the vice and a tube over the crank arm for more leverage. Swany05, Skylark and BigDL 3 Link to comment Share on other sites More sharing options...
DjCyclist Posted August 6, 2019 Share Try brake fluid. Works for me. Link to comment Share on other sites More sharing options...
DjCyclist Posted August 6, 2019 Share Try brake fluid. Works for me. Link to comment Share on other sites More sharing options...
stefmeister Posted August 6, 2019 Share I've used a propane torch on alloy cranks before with success. No need for red hot metal heating to get the metal to expand. A few hundred degrees should be enough without altering the structure. I've also used the vice clamping to remove a carbon crank, but you'd need a vice and something between the contact points to protect the crank. Skylark 1 Link to comment Share on other sites More sharing options...
SwissVan Posted August 6, 2019 Share I have been battling to remove a set of Eggbeater pedals from Shimano cranks. The bike has been standing unused for years. Eggbeaters do not have a 15 mm space outside of the crank to fit a crank spanner but only have the allen key inside of the crank . Will heat/cold treatment work without weakening the cranks?EDIT:Make sure you are loosening in the correct direction....You won’t be the first or last to tighten instead of loosening. Make sure the Allen key end that engages the pedal is not worn and is a good tight fit, once it slips it will damage the pedal end making it harder to loosen. Put the longest Allen key you have on there, and then add some leverage by putting a longer pipe over the end of the Allen key. Take a hammer and hit the pipe in both loosening and tighten directions for a bit of shock treatment. Stand on the other pedal to try stop the rotation. Do the same to the other side before you loosen it completely. Failing a suitable pipe you can also use a spanner ???? with the ring end over the Allen key to add some leverage. Carefull tho this method tends to “slip” a bit Good luck Edited August 6, 2019 by SwissVan Reg Lizard, DJR, Vetplant and 1 other 4 Link to comment Share on other sites More sharing options...
Jewbacca Posted August 6, 2019 Share EDIT:Make sure you are loosening in the correct direction....You won’t be the first or last to tighten instead of loosening. Make sure the Allen key end that engages the pedal is not worn and is a good tight fit, once it slips it will damage the pedal end making it harder to loosen. Put the longest Allen key you have on there, and then add some leverage by putting a longer pipe over the end of the Allen key. Take a hammer and hit the pipe in both loosening and tighten directions fora bit of shock treatment. Stand on the other pedal to try stop the rotation. Do the same to the other side before you loosen it completely. Failing a suitable pipe you can also use a spanner with the ring end over the Allen key to add some leverage. Carefull tho this method tends to “slip” a bit Good luckOr if you just put the allen key in the vice and turn the crank you have more than enough leverage and it's way simpler.... Push down on the pedal end, rotate the crank. Pretty sure that with a bit of lube dropped on the threads the night before that will comfortable solve the problem Swany05 1 Link to comment Share on other sites More sharing options...
madmarc Posted August 6, 2019 Share Make sure you turning in the right direction facing drive side crank its a right hand thread tightens clockwise / loosens anticlockwise - However a lot of people get confused when inserting the Allen key from the rear they tend to turn it the wrong way. Skylark and Vetplant 2 Link to comment Share on other sites More sharing options...
Veebee Posted August 6, 2019 Share this and a solid rachet or powerbar, with someone holding the bike steady. https://www.takealot.com/hex-bit-set-7-piece/PLID42267741?gclid=CjwKCAjwyqTqBRAyEiwA8K_4O3fJgEKhXrm_IIAWNnDx_TygzVTjyeHImJZJgxPBrXaxEe0mQsAzHxoCL2MQAvD_BwE&gclsrc=aw.ds Link to comment Share on other sites More sharing options...
DieselnDust Posted August 6, 2019 Share I have been battling to remove a set of Eggbeater pedals from Shimano cranks. The bike has been standing unused for years. Eggbeaters do not have a 15 mm space outside of the crank to fit a crank spanner but only have the allen key inside of the crank . Will heat/cold treatment work without weakening the cranks? leverage, you need leverage.Local wrecking yard should be able to help with a piece of 1m length pipe that will fit over a 8 or 10mm allen key handle. Apply pressure and a bit of JMSP and it'll free it self. Link to comment Share on other sites More sharing options...
solty Posted August 6, 2019 Share I'd still give heat a try, not a blowtorch, just dip the crank end in boiling water. Like when opening a stubborn jar.Fractional thermal expansion of aluminium is 24, vs 13 for steel (and 9 for glass). So aluminium will expand almost twice as much as steel for same change in temperature. Danger Dassie, DieselnDust, Vetplant and 4 others 7 Link to comment Share on other sites More sharing options...
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