Seized pedals on Shimano cranks

[DenzelM]

Hi Guys

 

My shimano 105 carbon pedals are for some reason seized to the crank arms. i have broken 3 allen wrenches trying to get them free and the local bike shop in Durban advised there is nothing i can do as the the crank arms are hollow and heat may cause them to warp . The heads on the pedals are still good and the tools catch well. I can't understand how this would happen as its ever-dent copper slip was used when i installed it 6 months ago.

 

Needless to say i also made sure we where opening them in the correct direction .

 

Any ideas?

 

Regards

[Gonduir]

Have you tried to put the Allen key in and hit it with a hammer? I did this to take off my older mtb pedals that were also seized.

 

I've also bent 2 Allen keys trying to take it off my hand. After the hit the Allen with a hammer it came loose.

[DenzelM]

@Daezara Yeah i did , had the crank on a vice ,, still no luck. 

[gummibear]

@Daezara Yeah i did , had the crank on a vice ,, still no luck. 

Use a pipe to get more leverage....and make sure you loosening in the right direction.

[Pete the Pirate]

Leverage is often the key.

My LBS has a 1.5m pedal removing tool. It has never failed to work.

Good luck.

[Rocket-Boy]

Mate of mine who used to be a car mechanic had a 1m steel pipe that he called "the convincer" used to slip it over whatever tool he was using to help things out.

[MEYER1]

Drill a hole in the pedal wear the allen key fit so that the thread collapse. If technical minded  you will understand.   

[BMXER]

Strip the pedal, Place the pedal axil in a vice and off it will come.

[Gonduir]

I fear that more leverage would just bend more Allen keys.

[Vetseun]

As Gummi said. Make sure you are turning in the correct direction.

[Ryno.]

I fear that more leverage would just bend more Allen keys.

I think you should go buy an expensive allenkey like parktool and try again with a lot more leverage . When it comes to tools you really get what you pay for.

[DenzelM]

I think you should go buy an expensive allenkey like parktool and try again with a lot more leverage . When it comes to tools you really get what you pay for.

I broke a park tool .  Im thinking maybe i should vice it and try a torque wrench , may offer less tension to the head of the allen socket.

[BaGearA]

use the pipe method and jam the pedals inbetween two bricks in your wall to get optimum leaverage , then slowly increase presure until it feels like its going to break off ,ease up aplly some lube (NOT Q20 or squirt ) purple extreame or muc-off work realy well 

 

repeat ,this metod is easy on the threads , which is most important in the big picture 

 

  BTW 98% of cracks skrew the pedals out in the opposite direction of which yo peddle but you can check for sure on the website

 

Hope this helps , good luck

[Ryno.]

I broke a park tool .  Im thinking maybe i should vice it and try a torque wrench , may offer less tension to the head of the allen socket.

Then I don't know. I twisted a few cheap allenkeys before but an expensive one solved the problem. I think the best option is to drill out the pedal.

[brumby]

A decent 1/2" air wrench ( We use a King Tony) should do the job. We had the same problem and even with a  proper power bar had no success. I reiterate "decent" - an Adendorf Special or an old worn out one is not going to do the job.

[Rocket-Boy]

A decent 1/2" air wrench ( We use a King Tony) should do the job. We had the same problem and even with a  proper power bar had no success. I reiterate "decent" - an Adendorf Special or an old worn out one is not going to do the job.

Air wrenches can be good because of the hammering action. Might just do the trick.