My rear mech is feeling a bit tired, but mainly from being gunged up internally. The mech is still in good shape otherwise, so l dont want to bin it off for the sake of a bit of a thorough clean. In particular the cage spring struggles to pull the slack out of the chain if l go from a large sprocket / chainring combo, to a small one. Is it possible to dissassemble one without buying specific tools? I'm struggling to find any guides online.
Ta!
Completely, but you do need 4 hands to put it back together.
[url= http://techdocs.shimano.com/media/techdocs/content/cycle/EV/bikecomponents/RD/EV-RD-M971-2607_v1_m56577569830609161.pdf ]Exploded diagram[/url]
So yes you can take it apart with just allen keys but as njee says they can be a sod to get back together.