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I want to switch pedals but the old ones are stuck in the cranks. 
The cranks are the "newer" style Hussfelts with the steel thread inserts. The pedals, Shimano 545...they are the originals that came with the bike, and this is the first time I have tried taking them off (after about 2 years).
I've tried a 15mm wrench (not a pedal specific wrench)...and managed to stretch it out to about 17mm before it stopped holding on, and tried a 6mm hex socket on the back (using a 24 inch torque wrench), the hex part of the socket literally shattered at about 80-90 ft/lbs and the pedal did not budge...soaking in WD40 overnight did nothing to help (there is no visible corrosion)...and yes, I'm turning the wrenches the right way, toward the back of the bike on both sides.
Is it safe to use the heat method described here with the Hussfelt cranks: http://www.sheldonbrown.com/brandt/stuck-pedals.html
My worry is the heat might screw up the interface between the steel thread inserts and the aluminum arms on these cranks. (I don't want to destroy my cranks in the process...I'll return the new ones and keep using the original pedals if I have to)
Think the heat method is safe for me to try? Any other ideas?
sh0rty
The cranks are the "newer" style Hussfelts with the steel thread inserts. The pedals, Shimano 545...they are the originals that came with the bike, and this is the first time I have tried taking them off (after about 2 years).
I've tried a 15mm wrench (not a pedal specific wrench)...and managed to stretch it out to about 17mm before it stopped holding on, and tried a 6mm hex socket on the back (using a 24 inch torque wrench), the hex part of the socket literally shattered at about 80-90 ft/lbs and the pedal did not budge...soaking in WD40 overnight did nothing to help (there is no visible corrosion)...and yes, I'm turning the wrenches the right way, toward the back of the bike on both sides.
Is it safe to use the heat method described here with the Hussfelt cranks: http://www.sheldonbrown.com/brandt/stuck-pedals.html
My worry is the heat might screw up the interface between the steel thread inserts and the aluminum arms on these cranks. (I don't want to destroy my cranks in the process...I'll return the new ones and keep using the original pedals if I have to)
Think the heat method is safe for me to try? Any other ideas?
sh0rty
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