Gt idrive eccentric maintenance

Hello to all,

It's been three year that I have my GT idrive, I want to do some
maintenance on the eccentric.

Do I need a special tool for removing or putting back together the
eccentric?

If someone has experiences on this please let me know anything that I
need to know.

Thank you

On Wed, 14 Mar 2007 16:47:41 -0700,
wrote:

Hello to all,

It's been three year that I have my GT idrive, I want to do some
maintenance on the eccentric.

Do I need a special tool for removing or putting back together the
eccentric?

If someone has experiences on this please let me know anything that I
need to know.

Thank you



Are you asking about the older style i-drive? If so, then the only
special tool you'll need is a pin spanner to screw the eccentric retainer
ring on. It a very easy job. Just make su

1. Use high quality marine type grease on the bearings
2. Don't over grease it - the eccentric will not fully screw back
together. Cover/pack the bearings well and a thin coat on the races...
reassemble
--
Slack

Hi thanks for your answer, and yes it's for the old eccentric.

I have downloaded the manual from gt site and according to them you
will need 10 tools.
There's two special tools is the drive and non-drive side eccentric
bearing tool.

here's the link to the manual.
http://www.gtbicycles.com/sa/uploads...lyquickref.pdf

So you use just a pin spanner to replace the special tool from GT? the
pin spanner is for removing and putting back the eccentric?

a pin spanner is the tool from this link?
http://www.bikeworld.com/products/25...-Spanner..html

Do you have more information on that?

do you have a more detail procedure?

is it that easy?

My LBS wouldn't do it, because they don't sell GT.

Slack a écrit :
On Wed, 14 Mar 2007 16:47:41 -0700,
wrote:

Hello to all,

It's been three year that I have my GT idrive, I want to do some
maintenance on the eccentric.

Do I need a special tool for removing or putting back together the
eccentric?

If someone has experiences on this please let me know anything that I
need to know.

Thank you



Are you asking about the older style i-drive? If so, then the only
special tool you'll need is a pin spanner to screw the eccentric retainer
ring on. It a very easy job. Just make su

1. Use high quality marine type grease on the bearings
2. Don't over grease it - the eccentric will not fully screw back
together. Cover/pack the bearings well and a thin coat on the races...
reassemble
--
Slack

On Sat, 17 Mar 2007 07:34:30 -0700,
wrote:

Hi thanks for your answer, and yes it's for the old eccentric.

I have downloaded the manual from gt site and according to them you
will need 10 tools.
There's two special tools is the drive and non-drive side eccentric
bearing tool.

here's the link to the manual.
http://www.gtbicycles.com/sa/uploads...lyquickref.pdf

So you use just a pin spanner to replace the special tool from GT? the
pin spanner is for removing and putting back the eccentric?

a pin spanner is the tool from this link?
http://www.bikeworld.com/products/25...n-Spanner.html

Do you have more information on that?

do you have a more detail procedure?

is it that easy?

My LBS wouldn't do it, because they don't sell GT.



#1 please do not top post; reply at the bottom of each message. It makes
the thread much more readable.

ok, I'll have some more info later today and possibly some pictures
because I'm trying to teardown my i-drive now so I can sell it. But I have
to run some errands this morning.

Here's some info - I'll elaborate more later, so hang loose. Out of those
special GT tools, only number 8 is essential, but you have to replace the
main pivot you might be up the creak... without a paddle. You were asking
about the eccentric [only], correct?

-------Short ghetto tool list--------
**Drift - to knock out, carefully, the races
**Block of wood and mallet, or preferred method large vise: to press the
new races in.
**Adjustable Pin spanner (something like this
http://www.amazon.com/Tool-Adjustabl.../dp/B000AO5MCM ):
to unscrew the eccentric cam.
**Standard bottom bracket removal tools.
**Sockets, ratchet w/short extender
**Some good assembly (anti-seize) and marine grease.
--
Slack

On 17 mar, 12:11, Slack wrote:
On Sat, 17 Mar 2007 07:34:30 -0700,



wrote:
Hi thanks for your answer, and yes it's for the old eccentric.

I have downloaded the manual from gt site and according to them you
will need 10 tools.
There's two special tools is the drive and non-drive side eccentric
bearing tool.

here's the link to the manual.
http://www.gtbicycles.com/sa/uploads...VEassemblyquic...

So you use just a pin spanner to replace the special tool from GT? the
pin spanner is for removing and putting back the eccentric?

a pin spanner is the tool from this link?
http://www.bikeworld.com/products/25...PA-1-2-4-Pin-S...

Do you have more information on that?

do you have a more detail procedure?

is it that easy?

My LBS wouldn't do it, because they don't sell GT.

#1 please do not top post; reply at the bottom of each message. It makes
the thread much more readable.

ok, I'll have some more info later today and possibly some pictures
because I'm trying to teardown my i-drive now so I can sell it. But I have
to run some errands this morning.

Here's some info - I'll elaborate more later, so hang loose. Out of those
special GT tools, only number 8 is essential, but you have to replace the
main pivot you might be up the creak... without a paddle. You were asking
about the eccentric [only], correct?

-------Short ghetto tool list--------
**Drift - to knock out, carefully, the races
**Block of wood and mallet, or preferred method large vise: to press the
new races in.
**Adjustable Pin spanner (something like this http://www.amazon.com/Tool-Adjustabl...p/B000AO5MCM):
to unscrew the eccentric cam.
**Standard bottom bracket removal tools.
**Sockets, ratchet w/short extender
**Some good assembly (anti-seize) and marine grease.
--
Slack

Yes I'm want to clean the eccentric only. Thank you a lot for your
informations.

If you're able to join pictures with more explanation that will be
great.

Am I posting at the bottom now?

On 17 mar, 12:11, Slack wrote:
On Sat, 17 Mar 2007 07:34:30 -0700,



wrote:
Hi thanks for your answer, and yes it's for the old eccentric.

I have downloaded the manual from gt site and according to them you
will need 10 tools.
There's two special tools is the drive and non-drive side eccentric
bearing tool.

here's the link to the manual.
http://www.gtbicycles.com/sa/uploads...VEassemblyquic...

So you use just a pin spanner to replace the special tool from GT? the
pin spanner is for removing and putting back the eccentric?

a pin spanner is the tool from this link?
http://www.bikeworld.com/products/25...PA-1-2-4-Pin-S...

Do you have more information on that?

do you have a more detail procedure?

is it that easy?

My LBS wouldn't do it, because they don't sell GT.

#1 please do not top post; reply at the bottom of each message. It makes
the thread much more readable.

ok, I'll have some more info later today and possibly some pictures
because I'm trying to teardown my i-drive now so I can sell it. But I have
to run some errands this morning.

Here's some info - I'll elaborate more later, so hang loose. Out of those
special GT tools, only number 8 is essential, but you have to replace the
main pivot you might be up the creak... without a paddle. You were asking
about the eccentric [only], correct?

-------Short ghetto tool list--------
**Drift - to knock out, carefully, the races
**Block of wood and mallet, or preferred method large vise: to press the
new races in.
**Adjustable Pin spanner (something like this http://www.amazon.com/Tool-Adjustabl...p/B000AO5MCM):
to unscrew the eccentric cam.
**Standard bottom bracket removal tools.
**Sockets, ratchet w/short extender
**Some good assembly (anti-seize) and marine grease.
--
Slack

Sorry another question.

What do you mean races? do you mean the whole mecanism of eccentric?

On Sat, 17 Mar 2007 14:51:32 -0700,
wrote:

On 17 mar, 12:11, Slack wrote:
On Sat, 17 Mar 2007 07:34:30 -0700,



wrote:
Hi thanks for your answer, and yes it's for the old eccentric.

I have downloaded the manual from gt site and according to them you
will need 10 tools.
There's two special tools is the drive and non-drive side eccentric
bearing tool.

here's the link to the manual.
http://www.gtbicycles.com/sa/uploads...VEassemblyquic...

So you use just a pin spanner to replace the special tool from GT? the
pin spanner is for removing and putting back the eccentric?

a pin spanner is the tool from this link?
http://www.bikeworld.com/products/25...PA-1-2-4-Pin-S...

Do you have more information on that?

do you have a more detail procedure?

is it that easy?

My LBS wouldn't do it, because they don't sell GT.

#1 please do not top post; reply at the bottom of each message. It
makes
the thread much more readable.

ok, I'll have some more info later today and possibly some pictures
because I'm trying to teardown my i-drive now so I can sell it. But I
have
to run some errands this morning.

Here's some info - I'll elaborate more later, so hang loose. Out of
those
special GT tools, only number 8 is essential, but you have to replace
the
main pivot you might be up the creak... without a paddle. You were
asking
about the eccentric [only], correct?

-------Short ghetto tool list--------
**Drift - to knock out, carefully, the races
**Block of wood and mallet, or preferred method large vise: to press the
new races in.
**Adjustable Pin spanner (something like this
http://www.amazon.com/Tool-Adjustabl...p/B000AO5MCM):
to unscrew the eccentric cam.
**Standard bottom bracket removal tools.
**Sockets, ratchet w/short extender
**Some good assembly (anti-seize) and marine grease.
--
Slack

Sorry another question.

What do you mean races? do you mean the whole mecanism of eccentric?


No, I'm referring to the two cups (tech. name bearing race) that are press
fit into the frame. The are hidden right now, but after you unscrew the
Eccentric, they will be visible. Here, download this diagram
http://www.gtbicycles.com/sa/uploads..._partslist.pdf
It's the 3 inch version of the i-drive we have, but the names of the parts
are the same.

Btw, thanks for bottom posting.

Are you a brand new to doing your own bike maintenance? Did you purchase a
used i-drive? Also, what part of planet are you residing in? I'm in Los
Angeles.
--
Slack