Shimano 600 front derailleur mounting help

I took the Shimano front derailleur off my bike because I did a complete
overall (new bike to me) and now cannot get it repositioned correctly
for anything. The rear of the cage where the screw is wants to hit the
largest chain ring unless I move the derailleur very high, which causes
the chain to run viciously on the back of the cage.

I must be missing something here. One thing I noticed is that when the
derailleur is shifted to highest gear (smallest front chain ring) that
is angles sharply downward when it is shifted. This is what causes it to
rub. It works fine on the largest front chainring.

Thanks for any help on this issue. I need to get my bike on the road!

UNi



--
--------------------------
Posted via cyclingforums.com
http://www.cyclingforums.com

hey there-take a look at this article.
the highest gear on the front is the big one, the highest gear in the back
is the smallest one....
good luck!

"uni" wrote in message
...
I took the Shimano front derailleur off my bike because I did a complete
overall (new bike to me) and now cannot get it repositioned correctly
for anything. The rear of the cage where the screw is wants to hit the
largest chain ring unless I move the derailleur very high, which causes
the chain to run viciously on the back of the cage.

I must be missing something here. One thing I noticed is that when the
derailleur is shifted to highest gear (smallest front chain ring) that
is angles sharply downward when it is shifted. This is what causes it to
rub. It works fine on the largest front chainring.

Thanks for any help on this issue. I need to get my bike on the road!

UNi



--
--------------------------
Posted via cyclingforums.com
http://www.cyclingforums.com

uni wrote:
I took the Shimano front derailleur off my bike because I did a complete
overall (new bike to me) and now cannot get it repositioned correctly
for anything. The rear of the cage where the screw is wants to hit the
largest chain ring unless I move the derailleur very high, which causes
the chain to run viciously on the back of the cage.
I must be missing something here. One thing I noticed is that when the
derailleur is shifted to highest gear (smallest front chain ring) that
is angles sharply downward when it is shifted. This is what causes it to
rub. It works fine on the largest front chainring.
Thanks for any help on this issue. I need to get my bike on the road!
UNi



It sounds like the FD needs to be mounted differently than your current
configuration. I think pictures are worth many words. Take a look at the
Shimano site at URL:
http://bike.shimano.com/product_imag...FD_6500_SI.pdf See
if those pictures and instructions help. I know that it is a different
model FD, but they are quite similar. You didn't mention if your
mounting is braze-on or clamp-on. For more good words go to Sheldon
Brown's site at URL: http://sheldonbrown.com/derailer-adjustment.html



--
David Ornee, Western Springs, IL USA

--------------------------
Posted via cyclingforums.com
http://www.cyclingforums.com

uni wrote in message ...
I took the Shimano front derailleur off my bike because I did a complete
overall (new bike to me) and now cannot get it repositioned correctly
for anything. The rear of the cage where the screw is wants to hit the
largest chain ring unless I move the derailleur very high, which causes
the chain to run viciously on the back of the cage.

I must be missing something here. One thing I noticed is that when the
derailleur is shifted to highest gear (smallest front chain ring) that
is angles sharply downward when it is shifted. This is what causes it to
rub. It works fine on the largest front chainring.

Thanks for any help on this issue. I need to get my bike on the road!

UNi

Dear Uni,

If it used to work, either you're not putting it back
where it used to be or else somehow changed it without
realizing what you did.

It sounds as if you've put back where it used to be
and it just doesn't work the same.

During your overhaul, could you have changed the
position of some limiting or adjusting screws?

Or--oops--mistakenly replaced them with different
screws? Mis-assembled things?

Or--sproing!--even accidentally lost a small spring
from the derailleur mechanism? It's hard to see something
that's missing, so you might look for an exploded drawing
on the internet or a duplicate mechanism at a local bike shop.

Good luck,

Carl Fogel

I found the problem. Thanks for replying.



--
--------------------------
Posted via cyclingforums.com
http://www.cyclingforums.com