Stripped Thread Off Crank

"Ben C" <"ben.["@].binarystar.org> wrote in message
news:[email hidden]...

Quoted message said:

Hi there,

this evening I managed to strip the thread off the crank on my bike
trying to get at the bottom bracket 🙁 ... probably because I didn't
have the puller all the way into the crank and it just pulled straight
out bringing the thread with it?... anyway ... does anyone here have
recommendations on repairing this

You local motor mechanic may be able to use a flywheel puller to remove the
crank. Throw crankset away*, buy new one at LBS. :-(

Quoted message said:

and further advice/tips on avoiding this sort of thing in the future

Check that the crank remover is not cross threaded. Always fit crank remover
tightly _all the way_ into the crank. Rotate the remover handle firmly but
smoothly.

Bad luck about this crankset.

Cheers
Peter

*You can, of course, continue to use the crankset, but getting it off may be
tricky. Depends really on how much thread remains and whether a thread tap
(LBS) could rebuild the thread.

Peter Signorini said:

"Ben C" <"ben.["@].binarystar.org> wrote in message
news:[email hidden]...

Quoted message said:

Hi there,

this evening I managed to strip the thread off the crank on my bike
trying to get at the bottom bracket 🙁 ... probably because I didn't
have the puller all the way into the crank and it just pulled straight
out bringing the thread with it?... anyway ... does anyone here have
recommendations on repairing this

You local motor mechanic may be able to use a flywheel puller to remove the
crank. Throw crankset away*, buy new one at LBS. :-(

Quoted message said:

and further advice/tips on avoiding this sort of thing in the future

Check that the crank remover is not cross threaded. Always fit crank remover
tightly _all the way_ into the crank. Rotate the remover handle firmly but
smoothly.

Bad luck about this crankset.

Cheers
Peter

*You can, of course, continue to use the crankset, but getting it off may be
tricky. Depends really on how much thread remains and whether a thread tap
(LBS) could rebuild the thread.

Nup. There is a fix, and St Kilda Cycles has one - a rethreader with a self extracting crank collar, useful if you've got a nice crank (but then, nice cranks don't often strip here). If it's a bit old and heavy, and the bike isn't, treat yourself to a new Shimano Hollowtech II (Ultegra/Deore XT and above) - the best thing they've made in years. No more stupid press-fit joins and crappy underengineered interfaces! Yay!

M "converted" H

mfhor said:

Peter Signorini said:

"Ben C" <"ben.["@].binarystar.org> wrote in message
news:[email hidden]...

Quoted message said:

Hi there,

this evening I managed to strip the thread off the crank on my bike
trying to get at the bottom bracket 🙁 ... probably because I didn't
have the puller all the way into the crank and it just pulled

straight

Quoted message said:

out bringing the thread with it?... anyway ... does anyone here have
recommendations on repairing this

You local motor mechanic may be able to use a flywheel puller to remove
the
crank. Throw crankset away*, buy new one at LBS. :-(

Quoted message said:

and further advice/tips on avoiding this sort of thing in the future

Check that the crank remover is not cross threaded. Always fit crank
remover
tightly _all the way_ into the crank. Rotate the remover handle firmly
but
smoothly.

Bad luck about this crankset.

Cheers
Peter

*You can, of course, continue to use the crankset, but getting it off
may be
tricky. Depends really on how much thread remains and whether a thread
tap
(LBS) could rebuild the thread.

Nup. There is a fix, and St Kilda Cycles has one - a rethreader with
a self extracting crank collar, useful if you've got a nice crank (but
then, nice cranks don't often strip here). If it's a bit old and heavy,
and the bike isn't, treat yourself to a new Shimano Hollowtech II
(Ultegra/Deore XT and above) - the best thing they've made in years. No
more stupid press-fit joins and crappy underengineered interfaces! Yay!

M "converted" H

LOL ... it was a Shimano Hollowtech crank that I fncked up ... oh well
..... it's all a learning

Ben C said:

mfhor said:

Peter Signorini said:

"Ben C" <"ben.["@].binarystar.org> wrote in message
news:[email hidden]...

> Hi there,
>
> this evening I managed to strip the thread off the crank on my bike
> trying to get at the bottom bracket 🙁 ... probably because I didn't
> have the puller all the way into the crank and it just pulled

straight

> out bringing the thread with it?... anyway ... does anyone here have
> recommendations on repairing this

You local motor mechanic may be able to use a flywheel puller to remove
the
crank. Throw crankset away*, buy new one at LBS. :-(

> and further advice/tips on avoiding this sort of thing in the future

Check that the crank remover is not cross threaded. Always fit crank
remover
tightly _all the way_ into the crank. Rotate the remover handle firmly
but
smoothly.

Bad luck about this crankset.

Cheers
Peter

*You can, of course, continue to use the crankset, but getting it off
may be
tricky. Depends really on how much thread remains and whether a thread
tap
(LBS) could rebuild the thread.

Nup. There is a fix, and St Kilda Cycles has one - a rethreader with
a self extracting crank collar, useful if you've got a nice crank (but
then, nice cranks don't often strip here). If it's a bit old and heavy,
and the bike isn't, treat yourself to a new Shimano Hollowtech II
(Ultegra/Deore XT and above) - the best thing they've made in years. No
more stupid press-fit joins and crappy underengineered interfaces! Yay!

M "converted" H

LOL ... it was a Shimano Hollowtech crank that I fncked up ... oh well
.... it's all a learning

You should lube the threads on the crankpuller and make sure there is
dirt and grime in the threads. I once did the same thing in my BMX
years to a nice pair of stronglight cranks. I used a crowbar to get the
crank off. BMXs have big tough BB axels so no damage was done to the bike.

agamlen said:

You should lube the threads on the crankpuller and make sure there is
dirt and grime in the threads. I once did the same thing in my BMX
years to a nice pair of stronglight cranks. I used a crowbar to get the
crank off. BMXs have big tough BB axels so no damage was done to the bike.

I must have been pretty lucky then. I stripped the thread trying to pull
some cranks but it was the thread on the crank extractor that went.
Bought a new crank extractor and applied a little more care/little less
effort and out they came.

DaveB

quote='Ben C'mfhor said:

Peter Signorini said:

"Ben C" <"ben.["@].binarystar.org> wrote in message
news:[email hidden]...

Quoted message said:

Hi there,

this evening I managed to strip the thread off the crank on my bike
trying to get at the bottom bracket 🙁 ... probably because I didn't
have the puller all the way into the crank and it just pulled

straight

Quoted message said:

out bringing the thread with it?... anyway ... does anyone here have
recommendations on repairing this

You local motor mechanic may be able to use a flywheel puller to remove
the
crank. Throw crankset away*, buy new one at LBS. :-(

Quoted message said:

and further advice/tips on avoiding this sort of thing in the future

Check that the crank remover is not cross threaded. Always fit crank
remover
tightly _all the way_ into the crank. Rotate the remover handle firmly
but
smoothly.

Bad luck about this crankset.

Cheers
Peter

*You can, of course, continue to use the crankset, but getting it off
may be
tricky. Depends really on how much thread remains and whether a thread
tap
(LBS) could rebuild the thread.

Nup. There is a fix, and St Kilda Cycles has one - a rethreader with
a self extracting crank collar, useful if you've got a nice crank (but
then, nice cranks don't often strip here). If it's a bit old and heavy,
and the bike isn't, treat yourself to a new Shimano Hollowtech II
(Ultegra/Deore XT and above) - the best thing they've made in years. No
more stupid press-fit joins and crappy underengineered interfaces! Yay!

M "converted" H

LOL ... it was a Shimano Hollowtech crank that I fncked up ... oh well
..... it's all a learning[/QUOTE]
Notice the "II" after "Hollowtech"? Take yourself down to a bike shop and have a look at some new XT/R, Dura-Ace or Ultegra 10 spd. Then you'll know what I mean.

Bummer about your cranks. Don' t grease the spindle next time (statement guaranteed to start a flame war on rec.bicycles.tech . . . no? Phew.).

M "You can still use the German tool (forget name) to pull Hollowtech cranks, by using the little insert " H

mfhor said:

Ben C said:

mfhor said:

Peter Signorini Wrote:

>"Ben C" <"ben.["@].binarystar.org> wrote in message
>news:[email hidden]...
>
>
>>Hi there,
>>
>>this evening I managed to strip the thread off the crank on my bike
>>trying to get at the bottom bracket 🙁 ... probably because I didn't
>>have the puller all the way into the crank and it just pulled
>
>straight
>
>
>>out bringing the thread with it?... anyway ... does anyone here have
>>recommendations on repairing this
>
>You local motor mechanic may be able to use a flywheel puller to

remove

Quoted message said:

>the
>crank. Throw crankset away*, buy new one at LBS. :-(
>
>
>
>>and further advice/tips on avoiding this sort of thing in the future
>
>Check that the crank remover is not cross threaded. Always fit crank
>remover
>tightly _all the way_ into the crank. Rotate the remover handle

firmly

Quoted message said:

>but
>smoothly.
>
>Bad luck about this crankset.
>
>Cheers
>Peter
>
>*You can, of course, continue to use the crankset, but getting it off
>may be
>tricky. Depends really on how much thread remains and whether a

thread

Quoted message said:

>tap
>(LBS) could rebuild the thread.

Nup. There is a fix, and St Kilda Cycles has one - a rethreader with
a self extracting crank collar, useful if you've got a nice crank

(but

Quoted message said:

then, nice cranks don't often strip here). If it's a bit old and

heavy,

Quoted message said:

and the bike isn't, treat yourself to a new Shimano Hollowtech II
(Ultegra/Deore XT and above) - the best thing they've made in years.

No

Quoted message said:

more stupid press-fit joins and crappy underengineered interfaces!

Yay!

Quoted message said:

M "converted" H

LOL ... it was a Shimano Hollowtech crank that I fncked up ... oh well
..... it's all a learning

Notice the "II" after "Hollowtech"? Take yourself down to a bike shop
and have a look at some new XT/R, Dura-Ace or Ultegra 10 spd. Then
you'll know what I mean.

Bummer about your cranks. Don' t grease the spindle next time
(statement guaranteed to start a flame war on rec.bicycles.tech . . .
no? Phew.).

M "You can still use the German tool (forget name) to pull Hollowtech
cranks, by using the little insert " H

Had a look at the Hollowtech II's online ... very nice ... glad I didn't
stuff a set of those up 🙂 ...