Creaky Coker Cranks

Wayne (an all others, too),

This is a common problem with unicycles, not just the Coker. The solution: Use
Loc-tite on the threads and tighten up the crank nut. Once you have it tight,
bunny hop on it a few times with both the right foot forward and then the
right foot back and tighten again. If you don’t have Loc-tite, super glue will
work, too.

It’s not good for your cranks when you hear the “irritating creaky noise”. I
always carry tool on any longer trip in case they come loose.

Dirk

-----Original Message----- From: Wayne Burrows [mailto:wayne.burrows@xtra.co.nz]
Sent: Wednesday, August 02, 2000 11:12 PM To: unicycling@winternet.com Subject:
Creaky Coker Cranks

Hi All

I have had my Coker for a few months now but because it is winter here I have
not ridden it that much ( I estimate less than a total of 300km).

However I have a major problem with the right hand Crank which keeps coming
loose and makes the most irritating creaky noise. Today it came loose into my
ride and I stopped at a very helpful engineering workshop and tightened it but a
couple of kilometers later it was loose again.

Is this a problem that others have encountered?

If so do I simply have to get a new better set of cranks or is there some
other solution?

If I need new cranks where is a good source?

TIA

Wayne Burrows

This is a multi-part message in MIME format.

------=_NextPart_000_0031_01BFFD5D.3B0914E0 Content-Type: text/plain;
charset=“iso-8859-1” Content-Transfer-Encoding: quoted-printable

Hi All

I have had my Coker for a few months now but because it is winter here I = have
not ridden it that much ( I estimate less than a total of 300km).

However I have a major problem with the right hand Crank which keeps = coming
loose and makes the most irritating creaky noise. Today it came = loose into my
ride and I stopped at a very helpful engineering workshop = and tightened it but
a couple of kilometers later it was loose again.

Is this a problem that others have encountered?

If so do I simply have to get a new better set of cranks or is there = some
other solution?

If I need new cranks where is a good source?

TIA

Wayne Burrows

------=_NextPart_000_0031_01BFFD5D.3B0914E0 Content-Type: text/html;
charset=“iso-8859-1” Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.0 Transitional//EN”> <HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" = http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2919.6307" name=3DGENERATOR> <STYLE></STYLE>
</HEAD> <BODY bgColor=3D#ffffff>
<DIV><FONT face=3D"Courier New" size=3D2>Hi All</FONT></DIV>
<DV> </DIV>
<DVI><FONT face=3D"Courier New" size=3D2>I have had my Coker for a few =
months now=20 but because it is winter here I have not ridden it that
much ( I = estimate less=20 than a total of 300km).</FONT></DIV>
<DVII> </DIV>
<DVIII><FONT face=3D"Courier New" size=3D2>However I have a major problem =
with the=20 right hand Crank which keeps coming loose and makes the most
irritating = creaky=20 noise. Today it came loose into my ride and
I stopped at a very = helpful=20 engineering workshop and tightened it
but a couple of kilometers later = it was=20 loose again.</FONT></DIV>
<DIX> </DIV>
<DX><FONT face=3D"Courier New" size=3D2>Is this a problem that others =
have=20 encountered?</FONT></DIV>
<DXI> </DIV>
<DXII><FONT face=3D"Courier New" size=3D2>If so do I simply have to get a =
new better=20 set of cranks or is there some other
solution?</FONT></DIV>
<DXIII> </DIV>
<DXIV><FONT face=3D"Courier New" size=3D2>If I need new cranks where is a =
good=20 source?</FONT></DIV>
<DXV> </DIV>
<DXVI><FONT face=3D"Courier New" size=3D2>TIA</FONT></DIV>
<DXVII> </DIV>
<DXVIII><FONT face=3D"Courier New" size=3D2>Wayne =
Burrows</FONT></DIV></BODY></HTML>

------=_NextPart_000_0031_01BFFD5D.3B0914E0–

Re: Creaky Coker Cranks

I’ve had very good luck using Loctite to keep the cranks tight. I use Loctite
640 sleeve retainer on the taper and Red Loctite 271 thread lock on the crank
nut. Loctite 640 is great. I found the 640 at a local auto parts store.

I have never had a crank come loose that was Loctited. The Loctite does not make
it too difficult to remove the crank with a standard crank remover. I have had
no problem removing the cranks when necessary. After removing the crank it is
necessary to scrape away the old Loctite with a screwdriver or similar tool, but
it’s easy to do.

When using Loctite it is not necessary to bang as hard on the crank to get it to
seat correctly. A few whacks with a rubber mallet will do it. Then use Red
Loctite on the nut and tighten. A few more whacks with a rubber mallet then
tighten the nut some more. Then wait 24 hours. Then enjoy.

john_childs

From: Ken Fuchs <kfuchs@winternet.com>
>“Wayne Burrows” <wayne.burrows@xtra.co.nz> wrote:
>
> >However I have a major problem with the right hand Crank which keeps = coming
> >loose and makes the most irritating creaky noise. Today it came = loose into
> >my ride and I stopped at a very helpful engineering workshop = and tightened
> >it but a couple of kilometers later it was loose again.
>
> >Is this a problem that others have encountered?
>
>I had the same problem a few months ago on my Coker.
>
> >If so do I simply have to get a new better set of cranks or is there = some
> >other solution?
>
>Take the crank arm off and examine it for excessive wear due to riding while
>the crank arm was loose. Examine axle for excessive wear too. Replace any
>component with excessive wear.
>
>Pound the (old or new) crank arm onto the axle with a rubber mallet or wood
>block and steel head hammer. Use as much force as possible, if you want to
>avoid repeating this process every few days. (Using a light 16-24 ounce hammer
>head should reduce component stress to acceptable limits. Heavy duty weight
>trainers should restrain themselves or use an 8 ounce hammer head to avoid
>component damage.
>
>You should consider replacing the locking nut with a new one even if the old
>one appears undamaged. A damaged lock nut may loosen, allowing the crank arm to
>loosen as well. Tighten the lock nut as tight as possible without stripping the
>threads. A torque wrench might be handy here, but I apply slowly increasing
>torque to a normal wrench about 8" long until the nut stops turning. (I
>probably apply more force than a typical torque wrench for this application
>would read. Note that a longer wrench will make it easier to strip the threads.
>Has anyone ever stripped these threads unintensionally; please tell us your
>secrets.
>
>Sincerely,
>
>Ken Fuchs <kfuchs@winternet.com>
>
>P.S. Can we please avoid sending the extra Microsloth (Microsoft [TM]) html
> text copy. See example below:


Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.

Share information about yourself, create your own public profile at
http://profiles.msn.com.

Re: Creaky Coker Cranks

“Wayne Burrows” <wayne.burrows@xtra.co.nz> wrote:

>However I have a major problem with the right hand Crank which keeps = coming
>loose and makes the most irritating creaky noise. Today it came = loose into my
>ride and I stopped at a very helpful engineering workshop = and tightened it
>but a couple of kilometers later it was loose again.

>Is this a problem that others have encountered?

I had the same problem a few months ago on my Coker.

>If so do I simply have to get a new better set of cranks or is there = some
>other solution?

Take the crank arm off and examine it for excessive wear due to riding while the
crank arm was loose. Examine axle for excessive wear too. Replace any component
with excessive wear.

Pound the (old or new) crank arm onto the axle with a rubber mallet or wood
block and steel head hammer. Use as much force as possible, if you want to avoid
repeating this process every few days. (Using a light 16-24 ounce hammer head
should reduce component stress to acceptable limits. Heavy duty weight trainers
should restrain themselves or use an 8 ounce hammer head to avoid component
damage. :slight_smile:

You should consider replacing the locking nut with a new one even if the old one
appears undamaged. A damaged lock nut may loosen, allowing the crank arm to
loosen as well. Tighten the lock nut as tight as possible without stripping the
threads. A torque wrench might be handy here, but I apply slowly increasing
torque to a normal wrench about 8" long until the nut stops turning. (I probably
apply more force than a typical torque wrench for this application would read.
Note that a longer wrench will make it easier to strip the threads. Has anyone
ever stripped these threads unintensionally; please tell us your secrets. :slight_smile:

Sincerely,

Ken Fuchs <kfuchs@winternet.com>

P.S. Can we please avoid sending the extra Microsloth (Microsoft [TM]) html
text copy. See example below:

>------=_NextPart_000_0031_01BFFD5D.3B0914E0 Content-Type: text/html;
>charset=“iso-8859-1” Content-Transfer-Encoding: quoted-printable
>
><!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.0 Transitional//EN”> <HTML><HEAD>
><META content=3D"text/html; charset=3Diso-8859-1" = http-equiv=3DContent-Type>
><META content=3D"MSHTML 5.00.2919.6307" name=3DGENERATOR> <STYLE></STYLE>
></HEAD> <BODY bgColor=3D#ffffff>
><DIV><FONT face=3D"Courier New" size=3D2>Hi All</FONT></DIV>
><DIV> </DIV>
><DIV><FONT face=3D"Courier New" size=3D2>I have had my Coker for a few = months
> now=20 but because it is winter here I have not ridden it that much ( I =
> estimate less=20 than a total of 300km).</FONT></DIV>
><DIV> </DIV>
><DIV><FONT face=3D"Courier New" size=3D2>However I have a major problem = with
> the=20 right hand Crank which keeps coming loose and makes the most
> irritating = creaky=20 noise. Today it came loose into my ride and I
> stopped at a very = helpful=20 engineering workshop and tightened it but a
> couple of kilometers later = it was=20 loose again.</FONT></DIV>
><DIV> </DIV>
><DIV><FONT face=3D"Courier New" size=3D2>Is this a problem that others =
> have=20 encountered?</FONT></DIV>
><DIV> </DIV>
><DIV><FONT face=3D"Courier New" size=3D2>If so do I simply have to get a = new
> better=20 set of cranks or is there some other solution?</FONT></DIV>
><DIV> </DIV>
><DIV><FONT face=3D"Courier New" size=3D2>If I need new cranks where is a =
> good=20 source?</FONT></DIV>
><DIV> </DIV>
><DIV><FONT face=3D"Courier New" size=3D2>TIA</FONT></DIV>
><DIV> </DIV>
><DIV><FONT face=3D"Courier New" size=3D2>Wayne =
> Burrows</FONT></DIV></BODY></HTML>
>
>------=_NextPart_000_0031_01BFFD5D.3B0914E0–

Re: Creaky Unicycle (Coker) Cranks

let me offer my opinion.

  1. use loc-tite
  2. WAIT 24 HOURS
  3. Then use the thing

I like to really let loctite set up.

Brian

Iwema, Dirk , GEAE <dirk.iwema@ae.ge.com> wrote in message
news:4E66C2D7AB5DD311BBE0009027927A0A9128B6@ev007msxaege.ae.ge.com
> Wayne (an all others, too),
>
> This is a common problem with unicycles, not just the Coker. The solution: Use
> Loc-tite on the threads and tighten up the crank nut. Once you have
it
> tight, bunny hop on it a few times with both the right foot forward and
then the
> right foot back and tighten again. If you don’t have Loc-tite, super glue
will
> work, too.
>
> It’s not good for your cranks when you hear the “irritating creaky noise”.
I
> always carry tool on any longer trip in case they come loose.
>
> Dirk
>
> -----Original Message----- From: Wayne Burrows
> [mailto:wayne.burrows@xtra.co.nz] Sent: Wednesday, August 02, 2000 11:12 PM
> To: unicycling@winternet.com Subject: Creaky Coker Cranks
>
>
> Hi All
>
> I have had my Coker for a few months now but because it is winter here I
have
> not ridden it that much ( I estimate less than a total of 300km).
>
> However I have a major problem with the right hand Crank which keeps
coming
> loose and makes the most irritating creaky noise. Today it came loose
into my
> ride and I stopped at a very helpful engineering workshop and tightened it
but a
> couple of kilometers later it was loose again.
>
> Is this a problem that others have encountered?
>
> If so do I simply have to get a new better set of cranks or is there some
other
> solution?
>
> If I need new cranks where is a good source?
>
> TIA
>
> Wayne Burrows