Stupid rear derailuer question

[tamman2000]

I am fairly new to cycling, I have been riding for like a year and a half. I recently decided that it was time for me to start doing some more of my own maintenance. This morning I cleaned and lubed my pedals (they were squeaking) and cleats, tightened my cleats, and lubed a lot of my cable routing. During the lubing of the cable routing I removed the rear wheel to get lots of slack in the brake cable and shifted without pedaling to get slack in the deriluer cable. When I put everything back together to start working on the chain, I noticed that my jockey pulley is now kinda bouncing along my cogs. It still shifts and everthing, it is just that the derailuer is sitting too close to the cog set, and interfering with it.

What did I do wrong, and how do I fix it?

The bike is a 2003 Giant OCR2 (tiagra triple drive train)

Thanks in advance,
TamMan

[daveornee]

I am fairly new to cycling, I have been riding for like a year and a half. I recently decided that it was time for me to start doing some more of my own maintenance. This morning I cleaned and lubed my pedals (they were squeaking) and cleats, tightened my cleats, and lubed a lot of my cable routing. During the lubing of the cable routing I removed the rear wheel to get lots of slack in the brake cable and shifted without pedaling to get slack in the deriluer cable. When I put everything back together to start working on the chain, I noticed that my jockey pulley is now kinda bouncing along my cogs. It still shifts and everthing, it is just that the derailuer is sitting too close to the cog set, and interfering with it.

What did I do wrong, and how do I fix it?

The bike is a 2003 Giant OCR2 (tiagra triple drive train)

Thanks in advance,
TamMan

One place to look is Park Tool Repair help:

<http://www.parktool.com/repair_help/FAQrindx.shtml>

or Sheldon Brown's site:

<http://www.sheldonbrown.com/derailer-adjustment.html>

[tamman2000]

One place to look is Park Tool Repair help:

<http://www.parktool.com/repair_help/FAQrindx.shtml>

or Sheldon Brown's site:

<http://www.sheldonbrown.com/derailer-adjustment.html> Those were both good, thanks...

They said I need to adjust the angle skrew. I did adjust it. The problem got better, but I don't think it is cured... I had to use the full range of that adjuster.

Also, why would what I did earlier cause the angle to change?

Any insight apreciated,
TamMan

[daveornee]

Those were both good, thanks...

They said I need to adjust the angle skrew. I did adjust it. The problem got better, but I don't think it is cured... I had to use the full range of that adjuster.

Also, why would what I did earlier cause the angle to change?

Any insight apreciated,
TamMan

It is tough to guess.
Maybe the position of the wheel and therefore the cassette cogs is changed relative to the derailer. Is the wheel properly seated in the drop-outs?

[tamman2000]

It is tough to guess.
Maybe the position of the wheel and therefore the cassette cogs is changed relative to the derailer. Is the wheel properly seated in the drop-outs? I am pretty sure it is... It spins nicely, and I removed it and put it back in twice just to make sure that was not the problem...

[gclark8]

When you remove/replace the wheel, make sure the rear gear selector is in the top gear and the chain is on the smallest sprocket. You may be one gog out, are you getting all the gears?

[boudreaux]

I am pretty sure it is... It spins nicely, and I removed it and put it back in twice just to make sure that was not the problem...
That screw you messed with does not change adjustment itself. Something else was the problem.