[D.M. Procida]

I have a left-hand pedal crank with a fairly badly stripped thread.

Bearing in mind that I hope never to have to see a stripped pedal thread
again (and certainly, not see one again at the bottom of a Spanish
mountain, but that's a different story) is it even worth trying to
repair it with a kit or getting it repaired by a garage?

It was only a cheap crank to begin with.

Daniele

[The Other Mike[_3_]]

On Mon, 8 Jul 2013 18:30:05 +0100,
(D.M. Procida) wrote:

I have a left-hand pedal crank with a fairly badly stripped thread.

Bearing in mind that I hope never to have to see a stripped pedal thread
again (and certainly, not see one again at the bottom of a Spanish
mountain, but that's a different story) is it even worth trying to
repair it with a kit or getting it repaired by a garage?

It was only a cheap crank to begin with.

Left hand thread inserts in 'standard' sizes are near impossible to find, pedal
threads are even more oddball. Machining it out fitting a plain insert and
retapping probably far too costly in machine shop time unless you 'do it
yourself'

Buy a new one

--

[Dave Plowman (News)]

In article
,
D.M. Procida wrote:
I have a left-hand pedal crank with a fairly badly stripped thread.

Bearing in mind that I hope never to have to see a stripped pedal thread
again (and certainly, not see one again at the bottom of a Spanish
mountain, but that's a different story) is it even worth trying to
repair it with a kit or getting it repaired by a garage?

It was only a cheap crank to begin with.

Is it not possible to buy the spares? Is it an internal tread that could
be repaired by a helicoil? Not that I've ever seen a left hand thread
version of one - and standard ones cost enough.

--
*No hand signals. Driver on Viagra*

Dave Plowman London SW
To e-mail, change noise into sound.

[newshound]

On 08/07/2013 18:30, D.M. Procida wrote:
I have a left-hand pedal crank with a fairly badly stripped thread.

Bearing in mind that I hope never to have to see a stripped pedal thread
again (and certainly, not see one again at the bottom of a Spanish
mountain, but that's a different story) is it even worth trying to
repair it with a kit or getting it repaired by a garage?

It was only a cheap crank to begin with.

Daniele

If it's a cheap crank and a reasonably fit cyclist, just buy a new one.
On a child's bike and if there are still some threads left so that you
can get some "pinch" you might get away with filling the gap with
araldite or JB weld (clean thoroughly to get rid of all grease and as
much debris as possible, and use heat to get flow).

[Alan Braggins]

In article , D.M. Procida wrote:
I have a left-hand pedal crank with a fairly badly stripped thread.

Bearing in mind that I hope never to have to see a stripped pedal thread
again (and certainly, not see one again at the bottom of a Spanish
mountain, but that's a different story) is it even worth trying to
repair it with a kit or getting it repaired by a garage?

It was only a cheap crank to begin with.

For a cheap left hand crank? Not worth it. But it can be done:
http://www.highpath.net/highpath/cycles/repairs.html

[D.M. Procida]

Dave Plowman (News) wrote:

In article
,
D.M. Procida wrote:
I have a left-hand pedal crank with a fairly badly stripped thread.

Bearing in mind that I hope never to have to see a stripped pedal thread
again (and certainly, not see one again at the bottom of a Spanish
mountain, but that's a different story) is it even worth trying to
repair it with a kit or getting it repaired by a garage?

It was only a cheap crank to begin with.

Is it not possible to buy the spares? Is it an internal tread that could
be repaired by a helicoil? Not that I've ever seen a left hand thread
version of one - and standard ones cost enough.

I think it's easy enough to get inserts or helicoil-type devices for
left-hand threads, but they aren't cheap enough for it to be worthwhile.

Daniele

[Dave Plowman (News)]

In article
,
D.M. Procida wrote:
Is it not possible to buy the spares? Is it an internal tread that
could be repaired by a helicoil? Not that I've ever seen a left hand
thread version of one - and standard ones cost enough.

I think it's easy enough to get inserts or helicoil-type devices for
left-hand threads, but they aren't cheap enough for it to be worthwhile.

As I said, I've never seen them. But the inserts themselves could be
fairly cheap - but would the fitting kit be? And do modern bikes use
common threads?

If it's a common problem and repairs are possible and cheaper than new
parts wouldn't a decent bike shop be able to do it? It's often cheaper
to have one thread helicoiled professionally than to buy the kit to DIY.

--
*I'll try being nicer if you'll try being smarter

Dave Plowman London SW
To e-mail, change noise into sound.

[The Other Mike[_3_]]

On Tue, 9 Jul 2013 09:26:13 +0100,
(D.M. Procida) wrote:

I think it's easy enough to get inserts or helicoil-type devices for
left-hand threads,

If you think that they are easy to get then please enlighten us all with a link
or even just the name of a supplier or manufacturer.

Pedal repair kits are here, that is assuming you have 9/16" 20 tpi threads

http://www.recoilshop.net/91620-rhlh-bicycle-p-754.html
http://www.recoilshop.net/91620-bicy...ack-p-766.html
http://www.recoilshop.net/91620-bicy...ack-p-767.html



--

[D.M. Procida]

The Other Mike wrote:

On Tue, 9 Jul 2013 09:26:13 +0100,
(D.M. Procida) wrote:

I think it's easy enough to get inserts or helicoil-type devices for
left-hand threads,

If you think that they are easy to get then please enlighten us all with a
link or even just the name of a supplier or manufacturer.

Haven't you just done that below?

Pedal repair kits are here, that is assuming you have 9/16" 20 tpi threads

http://www.recoilshop.net/91620-rhlh-bicycle-p-754.html
http://www.recoilshop.net/91620-bicy...ack-p-766.html
http://www.recoilshop.net/91620-bicy...ack-p-767.html

Daniele

[Dave Plowman (News)]

In article ,
The Other Mike wrote:
On Tue, 9 Jul 2013 09:26:13 +0100,
(D.M. Procida) wrote:

I think it's easy enough to get inserts or helicoil-type devices for
left-hand threads,

If you think that they are easy to get then please enlighten us all with
a link or even just the name of a supplier or manufacturer.

Pedal repair kits are here, that is assuming you have 9/16" 20 tpi
threads

http://www.recoilshop.net/91620-rhlh-bicycle-p-754.html
http://www.recoilshop.net/91620-bicy...ack-p-766.html
http://www.recoilshop.net/91620-bicy...ack-p-767.html

And the correct drill might also cost an arm and a leg.

--
*It was recently discovered that research causes cancer in rats*

Dave Plowman London SW
To e-mail, change noise into sound.

[The Other Mike[_3_]]

On Tue, 9 Jul 2013 12:27:30 +0100,
(D.M. Procida) wrote:

The Other Mike wrote:

On Tue, 9 Jul 2013 09:26:13 +0100,
(D.M. Procida) wrote:

I think it's easy enough to get inserts or helicoil-type devices for
left-hand threads,

If you think that they are easy to get then please enlighten us all with a
link or even just the name of a supplier or manufacturer.

Haven't you just done that below?

No, that's just one very specific application that fits some, but not all
pedals.

LH inserts are *not* generally available, Armstrong (Helicoil UK) in Hull will
do specials if you need tens of thousands of inserts.

You said "I think it's easy enough to get inserts or helicoil-type devices for
left-hand threads" If so then please tell me where I can source these, happy
to buy full kits and 100 inserts.

M6 x 1 LH
M10 x 1 LH
M14 x 1.25 LH
M24 x 1.5 LH
3/8" 16 LH
1" 24 LH


--

[D.M. Procida]

The Other Mike wrote:

On Tue, 9 Jul 2013 12:27:30 +0100,
(D.M. Procida) wrote:

The Other Mike wrote:

On Tue, 9 Jul 2013 09:26:13 +0100,
(D.M. Procida) wrote:

I think it's easy enough to get inserts or helicoil-type devices for
left-hand threads,

If you think that they are easy to get then please enlighten us all with a
link or even just the name of a supplier or manufacturer.

Haven't you just done that below?

No, that's just one very specific application that fits some, but not all
pedals.

It'll fit nearly all pedals.

LH inserts are *not* generally available, Armstrong (Helicoil UK) in Hull
will do specials if you need tens of thousands of inserts.

You said "I think it's easy enough to get inserts or helicoil-type devices
for left-hand threads" If so then please tell me where I can source
these, happy to buy full kits and 100 inserts.

If this is some sort of challenge you're anxious to win, then please
don't let me deprive you of that pleasure.

Daniele