removal of pedals by spark erosion

[City Cycling Athletic Club]

has anybody had any experience of removing pedals by spark erosion - pedals need to be replaced urgently

[BaGearA]

I'd try heat shcok before I try that.

 

Have you tried an allen key and long pipe ?

[V12man]

Make 100000 percent sure you are turning it in the correct direction and use a longer lever.... or just visit your local bike shop.

 

I have had broken cylinder head bolts removed by spark erosion... works well but probably unnecessary on stuck pedals- especially since it guarantees destruction of the pedal.

[City Cycling Athletic Club]

twisted the LBS's allen key like liquorice - got new pedals to fit - old ones too worn even to keep as spares.currently dripping lemon juice on them every hour. LOL. will ask around for someone with a blow torch.

[BaGearA]

twisted the LBS's allen key like liquorice - got new pedals to fit - old ones too worn even to keep as spares.currently dripping lemon juice on them every hour. LOL. will ask around for someone with a blow torch.

Blow torch the area , then dip just the pedal in liquid nitrogen ( contact a chemical company) hopefully the axle will shrink enough to break/weaken the bond

[Mathieu_Schneuwly]

If the pedals are toast regardless, and depending on the pedal, this is an easy solution - have done it twice:

 

Strip the pedal so only the axle is in the crank. Take the axle to the grinder to create flats. Hold the flats in a vice. Twist the crank.

[Kalahari Vegmot]

Big vice. Drown the thing in Q20 overnight. Clamp tightly and hammer.

 

Smile as you hear the creaking sound of the pedal loosening.

[Vetseun]

Dink hoe se jou kop moet jy draai.

Dan draai jy ander kant toe.

[milky4130]

I've seen this way too often & willing to bet money that it's being turned the wrong way.

[ABrooks]

Isn't there usually an arrow on the crank arm showing which way to tighten?

[Frosty]

To loosen, turn towards the back wheel, i.e drive side is counter-clockwise while non-drive side is clockwise.

 

Pedals always tighten in the same direction as the bike moves... towards the front

 

 

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[gummibear]

Isn't there usually an arrow on the crank arm showing which way to tighten?

Nope....but pedalling forward tightens the pedal so to loosen push towards the back wheel.

[ZakAttak]

Please, please, please put copper grease on the thread of the new pedals when fitting them, in fact put copper grease on all your screws/bolts etc when fitting them... it will prevent the unnecessary struggle to loosen said component when needing to replace/service in future

[Tony datoy]

There are three words that come to mind " lack of maintenance" how on earth do pedals end up getting stuck if you are servicing your bike? I remove mine at least every three months, strip and re-grease.

Apply a little copper slip on the threads when you eventually get to fit new pedals.

[Odinson]

Unless you have brand spanking new Eagle cranks (which I don't think you do), just chuck your crank with the pedals attached.

[etienne_jordaan]

I would not recommend any heat or flame on a carbon crank. Aluminium maybe, but very low heat.