I just recently acquired a used 2003 Raleigh M50. Here’s the drivetrain, as it was when I acquired it, which is what it came with stock.

Crankset Shimano MC19 8spd 22/32/42
F. Derailleur Shimano Acera M330
R. Derailleur Shimano Alivio 8spd
Shimano EZ Fire EF29 8spd
Cog Set Shimano Cassette HG50-8, 8spd 11-30t
Uses an IG chain, only.

The first and really only problem with it was the front derailleur, the stock Shimano Acera which would not shift into the large sprocket and had some other rubbing issues I can’t recollect now after all the junk I’ve gone through with it. I tinkered with it for hours, following Parktools and Sheldon brown’s instructions, and finally concluded something must have been off with it or bent. I found an unbelievable deal with JensonUSA and got a mechanistically similar Shimano Deore (top swing, top pull, correct clamp size) for $5.00 + SH. I installed it and tinkered with it for two sets of several hours. Nothing but heartache. Before, with the Acera, I was either able to get it to shift from the middle to large and back or from middle to small and back, but not through all. Now the Deore will go through all, with a few annoying yet minor and possibly resolvable rubbing issues. However, there seems to be a problem and here is where I was hoping someone could help me out: the outside of the cage rubs really bad against the chain when in the large sprocket. From what I can tell the cage is as far out as it can go and it won’t budge any further, either manually or by tugging on the cable. Why is this occurring and what could I do to resolve this issue? I should mention, neither the crank nor the frame seem to be bent or misaligned in any way. Thanks.