OK. I am no expert but I've done plenty of drive train replacements since i started riding. Rewind to yesterday when it was time to replace the cassette/chain. I took the oppurtunity to remove derailleur pulleys and clean and relube them. That was no problem as i've done this many times before.
Where i did run into trouble was after reassembly of everything, the chain wants to rub on the outer rear derailleur "cage" between the two pulleys. I can't seem to make it stop despite many limit screw adjustments and tension adjustments.
It only seems to happen when chain is on the inner cogs. It rubs so hard that it is almost loud. I wonder if there isn't something wrong with the der. and/or alignment. Awhile back i got into some major mud and the derailleur actually got inverted with the lower pulley above the top until i was able to dig enough mud out.