Stuck crank help (remover stripping threads)

emma came up with the following;:

Quoted message said:

Bummer. I just bought a smaller chainring for the brommie and am
happily fitting it prior to doing the stratford greenway several times
this afternoon. All going well, removed the bolt, inserted the crank
remover - and its stripping the threads, not pulling the crank.
Immediate help much appreciated! I think the crank may already be toast
- what can I do..

Are you sure you have the right size thread on the puller and have threaded
the crank remover tool fully and properly onto the crank? It's worth
checking as I've seen people only thread the removers on maybe a quarter of
the thread, and when they then try to remove it, they strip. The threads
generally go all the way through the crank and provided you have the right
size puller, they shouldn't strip. IME they can be a very tight fit and as
they are so fine they can strip on insertion more easily than 'normal'
threads.

If threads have gone completely then it's a case of brute force probably
being the most effective solution. Heat, plus-gas and a big 'ammer help.
😉

--
Paul ...
(8(|) Homer Rules ..... Doh !!!
ebay stuff 7996850544
From Sunday 4573066585

in message <[email hidden]>, emma

(') said:

Bummer. I just bought a smaller chainring for the brommie and am
happily fitting it prior to doing the stratford greenway several times
this afternoon. All going well, removed the bolt, inserted the crank
remover - and its stripping the threads, not pulling the crank.
Immediate help much appreciated! I think the crank may already be toast
- what can I do..

The crank /is/ toast, and you really have problems. You can allegedly use
a car type sprocket puller, but I've never tried it. Or you could try
(very carefully) cutting the end of the bottom bracket axle off with an
angle grinder. If it's the drive side crank, you could try taking the
other crank off and disassembling the bottom bracket bearing from the
non-drive side to that you can remove the crank on the axle.

Me? I'd take it to my LBS.

--
[email hidden] (Simon Brooke) http://www.jasmine.org.uk/~simon/

;; when in the [censored], the wise man plants courgettes

Well thanks for that, no threads totally stripped. Blowtorch and hammer
worked.

Emma

emma came up with the following;:

Quoted message said:

Well thanks for that, no threads totally stripped. Blowtorch and hammer
worked.

Brute Force is a most excellent tool.

'specially if you're a tad frustrated and need to whack something ... 😉

--
Paul ...
(8(|) Homer Rules ..... Doh !!!
ebay stuff 7996850544
From Sunday 4573066585

in message <[email hidden]>, Paul - [censored]

(') said:

emma came up with the following;:

Quoted message said:

Well thanks for that, no threads totally stripped. Blowtorch and
hammer worked.

Brute Force is a most excellent tool.

'specially if you're a tad frustrated and need to whack something ...
😉

Oh, God, in your infinite mercy, give me a stuck crank and something to
whack it with!

Simon, still drowning in a sea of recalcitrant routers and firewalls... I
believe it was nice in the blue room today. I had some idea about riding
a wheeled contraption thingy that they have in there. Daylight? Is there
really something called daylight?

--
[email hidden] (Simon Brooke) http://www.jasmine.org.uk/~simon/

Morning had broken, and I found when I looked that we had run out
of copper roove nails.

Paul - censored said:

emma came up with the following;:

Quoted message said:

Well thanks for that, no threads totally stripped. Blowtorch and hammer
worked.

Brute Force is a most excellent tool.

'specially if you're a tad frustrated and need to whack something ... 😉

I've got a broken video recorder and a sledge hammer and when I get
really annoyed with something I'm gonna turn it into a bag of video
recorder bits.

Chris
--
Chris Eilbeck
MARS Flight Crew http://www.mars.org.uk/
UKRA #1108 Level 2 UYB
Tripoli UK Member #9527 LSMR

I used some pulley drawers on mine when the threads stripped and it
worked fine.

emma said:

Bummer. I just bought a smaller chainring for the brommie and am
happily fitting it prior to doing the stratford greenway several times
this afternoon. All going well, removed the bolt, inserted the crank
remover - and its stripping the threads, not pulling the crank.
Immediate help much appreciated! I think the crank may already be toast
- what can I do..