Pedal wrench?

JPB
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Pedal wrench?

Postby JPB » Sun Sep 16, 2018 5:17 pm

Hi brains trust,
I am trying to remove the pedals on my bike using a 15mm Sidchrome spanner and extension bar and all I am doing is spreading the jaws of the spanner. Will a pedal wrench do a better job or do I have a more serious issue?
And yes, I am trying in the correct directions.
I know with the pedal wrench I could wack it with a hammer to give it a short sharp impact.
Jon

tez001
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Re: Pedal wrench?

Postby tez001 » Sun Sep 16, 2018 5:24 pm

Can you whack the spanner with a hammer too? The pedal spanners I've seen don't look to be as strong as a normal spanner.

Is the spanner fitting on the pedal fine as some spanners I've used are too wide.

uart
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Re: Pedal wrench?

Postby uart » Sun Sep 16, 2018 5:53 pm

Yes impact generally helps a lot. Bear in mind that it also helps spread the wrench unfortunately.

BTW. What type of cranks (material) and what type of pedals? I've certainly had some pretty badly stuck pedals on some old retro bikes before. Take your time if you can and soak them for a while with some penetrating oil (I make my own with a 50/50 mix of acetone and auto trans fluid).

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rodneycc
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Re: Pedal wrench?

Postby rodneycc » Sun Sep 16, 2018 9:44 pm

Spanner or shifter usually does the job ( maybe a squirt of wd40 to penetrate/ loosen).

Just be mindful of the 8mm hex key style (accesed from behind the crank arm). They can be a real bugger to get off if overtightened. (spank spike flat pedals for example).
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DavidS
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Re: Pedal wrench?

Postby DavidS » Sun Sep 16, 2018 9:51 pm

Wow, sounds bad. Hitting with a hammer usually works as it is the shock which loosens the bolt. I would go for soaking it in something, you need something which really penetrates and leave it overnight. Might be a lost cause though, I had one recently where I couldn't get the pedal off an old crank, ended up with new pedals.

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ValleyForge
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Re: Pedal wrench?

Postby ValleyForge » Sun Sep 16, 2018 11:20 pm

Some pipe on the pedal spanner and a trusty assistant to jump on it works a treat.
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bychosis
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Re: Pedal wrench?

Postby bychosis » Mon Sep 17, 2018 6:30 am

Make sure you are turning the correct way too. Don’t forget they are opposite threads on each side to stop them self loosening while you ride.

I think it as turning the pedal backwards on each side, saves trying to work out which one is left or right threaded.
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JPB
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Re: Pedal wrench?

Postby JPB » Mon Sep 17, 2018 10:02 am

bychosis wrote:Make sure you are turning the correct way too. Don’t forget they are opposite threads on each side to stop them self loosening while you ride.
I think it as turning the pedal backwards on each side, saves trying to work out which one is left or right threaded.

Yes, attempting to turn them in the correct directions. The pedals are marked with "tighten" and an arrow and I have even loosened the pedals on my other bike just to prove I am turning the correct way.

ValleyForge wrote:Some pipe on the pedal spanner and a trusty assistant to jump on it works a treat.

Using pipe on the Sidchrome spanner is how I manage to flex it enough the spread the jaws

uart wrote:BTW. What type of cranks (material) and what type of pedals? I've certainly had some pretty badly stuck pedals on some old retro bikes before. Take your time if you can and soak them for a while with some penetrating oil (I make my own with a 50/50 mix of acetone and auto trans fluid).

Not sure what material the cranks are, FSA Tempo, the manufacturer says "alloy" for whatever that means. The pedals are Shimano M520 SPD.
I gave them a good squirt of WD40 and tried again after a few hours but still had no luck.

Tossing up whether to ride to my LBS and pay them $20 or so to have a go with their pro tools and experience or pay $30 and buy a dedicated pedal wrench and hope it does the trick.

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Re: Pedal wrench?

Postby uart » Mon Sep 17, 2018 11:00 am

JPB wrote:The pedals are marked with "tighten" and an arrow and I have even loosened the pedals on my other bike just to prove I am turning the correct way.
I could be wrong, but I always thought that those arrows were for assembling the spindle to the pedal body. Anyway, as long as you are going anticlockwise on the drive side pedal and clockwise on the non-drive side pedal (each viewed from the side of the bike that the pedal is on) then they should loosen.

Tossing up whether to ride to my LBS and pay them $20 or so to have a go with their pro tools and experience or pay $30 and buy a dedicated pedal wrench and hope it does the trick.

A good quality spanner should be as strong as a dedicated pedal wrench. The main idea behind a dedicated wrench is that they are often a little longer, so that end that you're holding clears end of the crank, and slightly thinner profile as some pedals don't have a lot of room for the thickness of a spanner. I've seen some cheap spanners with bulky heads that wont quite fit a pedal. I'd try a bit more penetrating oil and some impact.

BTW. Do you know when the pedals were last removed. Have they been on the bike since you bought it?

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P!N20
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Re: Pedal wrench?

Postby P!N20 » Mon Sep 17, 2018 11:15 am

Between the sexist and homophobic remarks, there's some good advice and comedy gold in this thread: https://www.rotorburn.com/forums/index. ... ck.216155/

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Thoglette
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from the Spagthorpe files..

Postby Thoglette » Mon Sep 17, 2018 2:05 pm

Presuming you're winding it the right way..

If it's a steel pedal spindle in an aluminium crank arm, heat is your friend. After soaking the wee bugger in your favourite penetrant for a few days, dry it*, then borrow the blow heater or hair drier and heat up the crank arm until you can barely touch it. Then apply spanner & hammer (in the right direction).

* most penetrating oils are flammable.
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Jmuzz
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Re: Pedal wrench?

Postby Jmuzz » Mon Sep 17, 2018 4:22 pm

I snapped an Allen key socket attachment.
I was going backwards, despite my max strength torque it came off easily in the correct direction after watching YouTube.

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DavidS
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Re: Pedal wrench?

Postby DavidS » Mon Sep 17, 2018 9:32 pm

I can't see a pedal spanner being better than a Sidchrome, they are great spanners.

I would actually just replace the pedal or crank arm if it is that bad.

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Ancientflatulence
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Re: Pedal wrench?

Postby Ancientflatulence » Tue Sep 18, 2018 7:56 am

Plus one for the hot air gun .......... heat is always good but with ally and steel their expansion rates are different so is very effective.

JPB
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Re: Pedal wrench?

Postby JPB » Sat Sep 22, 2018 3:40 pm

Looks like the pedals have beaten me. My fault for not greasing the threads before installing them a couple of years ago.
I have had the bike lying on it's side so that I could fill the recess on the inside of the crank with WD40 and let it sit for 48 hours. Then heated it up with a hot air gun ( started to melt the plastic retaining collar and burnt my finger went I touched the crank) and then tried a 6mm StahlWillie ( pro grade ) hex key in a battery impact driver and then with a long cracking bar and all that happened is that it started to actually twist the hex key before starting to round off on the corners.
And I am turning the correct way - because in the end I took the pedals off my new (secondhand) bike and replaced them with a very old set of SPDs I had in the cupboard, it is just my good pedals off my old good bike that is the issue.

May have to sell the bike with "welded on" SPD pedals

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DavidS
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Re: Pedal wrench?

Postby DavidS » Sat Sep 22, 2018 4:25 pm

JPB wrote:Looks like the pedals have beaten me. My fault for not greasing the threads before installing them a couple of years ago.
I have had the bike lying on it's side so that I could fill the recess on the inside of the crank with WD40 and let it sit for 48 hours. Then heated it up with a hot air gun ( started to melt the plastic retaining collar and burnt my finger went I touched the crank) and then tried a 6mm StahlWillie ( pro grade ) hex key in a battery impact driver and then with a long cracking bar and all that happened is that it started to actually twist the hex key before starting to round off on the corners.
And I am turning the correct way - because in the end I took the pedals off my new (secondhand) bike and replaced them with a very old set of SPDs I had in the cupboard, it is just my good pedals off my old good bike that is the issue.

May have to sell the bike with "welded on" SPD pedals


There comes a time when you just can't remove a nut or a bolt. I think you're there.

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