seized pedal removal

Quoted post said:

Originally posted by Gbrunsdon
Hi. Would like to change pedals but they appear to be completely seized? Wondered if anyone had a
tip/ technique. I've made sure I'm turning them in the right direction and have sprayed/ left wd40
on them overnight - but still no joy?

have you tried using a big spanner, wedging the whole lot in a door or something to stop the cranks rotating, and twatting it with a big hammer?

"gbrunsdon" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Hi. Would like to change pedals but they appear to be completely seized? Wondered if anyone had a
tip/ technique. I've made sure I'm turning them in the right direction and have sprayed/ left wd40
on them overnight - but still no joy?

more torque....extend the lever somehow

Sometimes as I know that job is more trouble than its worth! After broken spanners, knuckles and
various other inconveniences its best to give in! You have already bought new pedals so unless its a
supper-doopa top of the range chainset it may in the long run be easier to buy a new chainset and
then you know its all new.

"gbrunsdon" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Hi. Would like to change pedals but they appear to be completely seized? Wondered if anyone had a
tip/ technique. I've made sure I'm turning them in the right direction and have sprayed/ left wd40
on them overnight - but still no joy?

Two "blacksmithing" options that I have used for a similar problem

1 Try pouring boiling water (I mean BOILING straight from the kettle) over the end of the crank end
where the pedal thread is and then trying the wrench - the logic being that the two metals may
expand at slightly different rates (Needless to say you need to be careful and probably wear gloves)
You might also try a gas blowlamp to warm the threaded end of the crank arm.

2 THIS MAY DESTROY THE PEDAL - if you can take the pedal cage (or whatever it's got) off together
with all the bearings etc - leaving just the pedal axle screwed in the crank arm. Then a) hold the
crank in an engineering vice and use a pipe wrench to try and turn the pedal axle (a pipe wrench is
the type that adjusts but then increases the gripping pressure as you pull) OR b) hold the pedal
axle very tightly in the engineering vice and then try either tapping the other end of the crank
with a soft faced hammer or put a length of tubing over the crank arm to increase leverage (this
method is obviously easier with the LH crank than with the chainwheel crank)

I note you tried WD - try leaving the whole thing immersed for several days in a bucket of diesel
fuel (which also has penetrative properties but is cheaper than WD)

Good luck !

RG

In article <[email hidden]>,

gbrunsdon said:

Wondered if anyone had a tip/ technique. I've made sure I'm turning them in the right direction
and have sprayed/ left wd40 on them overnight - but still no joy?

Soak them in PlusGas overnight and use a proper pedal spanner - mine has a shaft about 2 feet long
and has a forged head. It sometimes helps to try and tighten them first to release any corrosion.

Grease the new ones when replacing them!

--
A T (Sandy) Morton on the Bicycle Island In the Global Village sandymillport.fsnet.co.uksandymillport.fsnet.co.ukOpen ↗

gbrunsdon said:

Hi. Would like to change pedals but they appear to be completely seized? Wondered if anyone had a
tip/ technique. I've made sure I'm turning them in the right direction and have sprayed/ left wd40
on them overnight - but still no joy?

draco.acs.uci.edu8i.5.htmlOpen ↗

jeverett3<AT>earthlink<DOT>net home.earthlink.net~jeverett3Open ↗

"gbrunsdon" <[email hidden]> wrote in message news:<[email hidden]>...

Quoted message said:

Hi. Would like to change pedals but they appear to be completely seized? Wondered if anyone had a
tip/ technique. I've made sure I'm turning them in the right direction and have sprayed/ left wd40
on them overnight - but still no joy?

Proper penetrating oil for a few days using some kind of reservoir, then use a heat gun (electric
paint stripper).

"gbrunsdon" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Hi. Would like to change pedals but they appear to be completely seized? Wondered if anyone had a
tip/ technique. I've made sure I'm turning them in the right direction and have sprayed/ left wd40
on them overnight - but still no joy?

All the above (apart from the hammer bit). Also remove the cranks and clamp them in a vice, when
they are on the bike the whole plot moves as you spanner hard on the pedals.

And when you get them off put a tiny bit of copper grease on the threads of the new pedals.

John

In "]news:[email hidden],
Sandy Morton <[email hidden]> expounded sagaciously:

Quoted message said:

In article <[email hidden]>, gbrunsdon

Quoted message said:

Wondered if anyone had a tip/ technique. I've made sure I'm turning them in the right direction
and have sprayed/ left wd40 on them overnight - but still no joy?

Soak them in PlusGas overnight and use a proper pedal spanner - mine has a shaft about 2 feet long
and has a forged head. It sometimes helps to try and tighten them first to release any corrosion.

Grease the new ones when replacing them!

Plus Gas worked for me in a similar situation.
--

Martin Bulmer

Pie Conservation Threat

gbrunsdon said:

Hi. Would like to change pedals but they appear to be completely seized? Wondered if anyone had a
tip/ technique. I've made sure I'm turning them in the right direction and have sprayed/ left wd40
on them overnight - but still no joy?

If all else fails, get a blowtorch and heat the crank end until it sizzles when you drop water on
it. Then using some thick gloves for protection, reapply the pedal spanner, making sure you are
turning it the correct way.

Tony

Stated earlier:

Sometimes as I know that job is more trouble than its worth! After broken spanners, knuckles
and various other inconveniences its best to give in! You have already bought new pedals so
unless its a supper-doopa top of the range chainset it may in the long run be easier to buy
a new chainset and then you know its all new.

So after you have heated it, bashed it, twisted it, shouted at it, appealed to its better nature you
still cant get them off - buy a new chainset!

Besides what on earth will all that brute force and heating do to the integrity of the metal? Do you
want the crank to snap going up a 1 in 4 whilst you are exerting megatonnes of force on it? Cant buy
a new leg!

Just my view point. No offence intended.

nobody760 said:

Besides what on earth will all that brute force and heating do to the integrity of the metal?

I don't know, what will the heat do to a crank? Heat is used to strengthen or harden certain
aluminium and steel components and tools* - and the amount of heat required to slightly expand the
crank hole won't be anything like that much. Brute force needn't be applied to the crank itself.

* That's what "T6" means, for example.

~PB