Derailluer Spring

remove links from the chain

"Charles B. Summers" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Anyone know of a way to tighten the spring in the rear derailluer of a
Shimano? The reason I'm asking is that when I bounce over trees or rocks,
the chain gets real sloppy and if I'm pedaling... the chain can slip,
usually causing me to slow down or come to a stop. Is there something that
I'm doing or can do to prevent this from happening?

Thanks,
Charles

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"Charles B. Summers" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Anyone know of a way to tighten the spring in the rear derailluer of a
Shimano? The reason I'm asking is that when I bounce over trees or rocks,
the chain gets real sloppy and if I'm pedaling... the chain can slip,
usually causing me to slow down or come to a stop. Is there something that
I'm doing or can do to prevent this from happening?

Thanks,
Charles

Shimano stuff is not servicable, no parts are sold. Throw it away and get a
new one.

- CA-G

Can-Am Girls Kick Ass!

..
"Charles B. Summers" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Anyone know of a way to tighten the spring in the rear derailluer of a
Shimano? The reason I'm asking is that when I bounce over trees or rocks,
the chain gets real sloppy and if I'm pedaling... the chain can slip,
usually causing me to slow down or come to a stop. Is there something that
I'm doing or can do to prevent this from happening?

Thanks,
Charles

http://www.sheldonbrown.com/derailer-adjustment.html
--
DTW .../\.../\.../\...

I've spent most of my money on mountain biking and windsurfing.
The rest, I've just wasted

This bike is only a month old. Have any recommendations?

"Carla A-G" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

"Charles B. Summers" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Anyone know of a way to tighten the spring in the rear derailluer of a
Shimano? The reason I'm asking is that when I bounce over trees or rocks,
the chain gets real sloppy and if I'm pedaling... the chain can slip,
usually causing me to slow down or come to a stop. Is there something
that
I'm doing or can do to prevent this from happening?

Thanks,
Charles

Shimano stuff is not servicable, no parts are sold. Throw it away and get
a
new one.

- CA-G

Can-Am Girls Kick Ass!

Thanks! This is very helpful. Looks like Jeff was on the right track!

"D T W .../\..." <[email hidden]> wrote in message
news:xXTHe.16085$QX2.15915@trndny01...

Quoted message said:

.
"Charles B. Summers" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Anyone know of a way to tighten the spring in the rear derailluer of a
Shimano? The reason I'm asking is that when I bounce over trees or rocks,
the chain gets real sloppy and if I'm pedaling... the chain can slip,
usually causing me to slow down or come to a stop. Is there something
that I'm doing or can do to prevent this from happening?

Thanks,
Charles

http://www.sheldonbrown.com/derailer-adjustment.html
--
DTW .../\.../\.../\...

I've spent most of my money on mountain biking and windsurfing.
The rest, I've just wasted

Carla A-G said:

Shimano stuff is not servicable, no parts are sold. Throw it away and get a
new one.

- CA-G

Can-Am Girls Kick Ass!

Umm, it could be brand new? I have a brand new XT that bounces like a
[censored] all over the place unless i remove enough links to restrict my
gearing.

J

Carla A-G said:

Shimano stuff is not servicable, no parts are sold. Throw it away and get a
new one.

- CA-G

Can-Am Girls Kick Ass!

Umm, it could be brand new? I have a brand new XT that bounces like a
[censored] all over the place unless i remove enough links to restrict my
gearing.

J

Charles B. Summers said:

Anyone know of a way to tighten the spring in the rear derailluer of a
Shimano? The reason I'm asking is that when I bounce over trees or
rocks, the chain gets real sloppy and if I'm pedaling... the chain
can slip, usually causing me to slow down or come to a stop. Is there
something that I'm doing or can do to prevent this from happening?

Thanks,
Charles

You can tighten the cage pivot spring on some Shimano derailleurs. It
requires taking the cage apart so that just the side plate attached to the
nuckle remains. Then unscrew the small post that stops the cage and allow
the spring to relax. Remove the pivot bolt and carefully remove the side
plate. You'll see that there is another hole position for the spring. Move
the spring to that position and reassemble. Rotate the side plate to put
tension on the spring and replace the stop post (put some blue loctite on
its threads).

Your in luck...

Barnett's Manual Chapter 32 - Rear Derailleurs.

http://www.bbinstitute.com/BM5%20chap%2032.pdf

Go to page 23. "Disassembling the cage pivot."

Mike

Charles B. Summers said:

Anyone know of a way to tighten the spring in the rear derailluer of a
Shimano? The reason I'm asking is that when I bounce over trees or rocks,
the chain gets real sloppy and if I'm pedaling... the chain can slip,
usually causing me to slow down or come to a stop. Is there something that
I'm doing or can do to prevent this from happening?

Depends on what the problem is and how stubborn you are. If it's a new bike from a shop, take it back and tell them your problem. Otherwise wrong chain length seems like one probable cause. If that is OK you might think about how the bike has been used. It's not unheard of to have rust/dust penetrate into the pivot, causing it to jam. Dissasembly, clean and reassembly tends to fix that. Do note that the spring is under some tension which can make reassembly a bit of a challenge.
Not having the wheel all the way back can also cause troubles with the RD.

In extrreme cases it might be needed to tighten the spring by drilling a new retainer hole.

"Charles B. Summers, QOF." <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

This bike is only a month old. Have any recommendations?

It was a joke, gawd, people take things so seriously! Do some research,
there are ways to fix up the derailleur so it works fine. Someone gave you
the Sheldon Brown link, study it and fix your derailleur up and get back to
the dirt.

- CA-G

Can-Am Girls Kick Ass!

"Coyoteboy" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Carla A-G said:

Shimano stuff is not servicable, no parts are sold. Throw it away and

get a

Quoted message said:

Quoted message said:

new one.

- CA-G

Can-Am Girls Kick Ass!

Umm, it could be brand new? I have a brand new XT that bounces like a
[censored] all over the place unless i remove enough links to restrict my
gearing.

J

It was a joke, I was mocking Shimano's style of "throw it away and buy a new
one" policy...

Some jokes just don't come out right when typed in a message...

- CA-G

Can-Am Girls Kick Ass!

Carla A-G said:

It was a joke, I was mocking Shimano's style of "throw it away and buy a new
one" policy...

Some jokes just don't come out right when typed in a message...

🙂 True.

Try using 🙂 or 🙁 or 😄 or :-p - makes it easier to figure out if you
are taking the p or not 😄

J

Michael Dart said:

Charles B. Summers said:

Anyone know of a way to tighten the spring in the rear derailluer of
a Shimano? The reason I'm asking is that when I bounce over trees or
rocks, the chain gets real sloppy and if I'm pedaling... the chain
can slip, usually causing me to slow down or come to a stop. Is there
something that I'm doing or can do to prevent this from happening?

Thanks,
Charles

You can tighten the cage pivot spring on some Shimano derailleurs. It
requires taking the cage apart so that just the side plate attached
to the nuckle remains. Then unscrew the small post that stops the
cage and allow the spring to relax. Remove the pivot bolt and
carefully remove the side plate. You'll see that there is another
hole position for the spring. Move the spring to that position and
reassemble. Rotate the side plate to put tension on the spring and
replace the stop post (put some blue loctite on its threads).

Your in luck...

Barnett's Manual Chapter 32 - Rear Derailleurs.

http://www.bbinstitute.com/BM5%20chap%2032.pdf

Go to page 23. "Disassembling the cage pivot."

Mike

Oh and shortening the chain a bit would put more tension on it. Since it is
a new bike there may be a little more chain on it than it really needs.
Shift up into the big ring on front and rear and see how much the cage is
pulled forward. If there's still some slack you and try removing a link or
two.

Mike