i bought a used trek 1000 for my gf to start riding with me this spring. the bike needed some tlc, and ive got everything in good order except for the front deraileur which i cant seem to dial in. i do all of my own maintenance and assembly and have been doing so for the better part of 20 years, but i just cant seem to solve this issue.
the shifter and derailer look to be in proper physical shape, but i cant seem to get it to shift smoothly. i have the limits set, and it does indeed shift, but when going from the smallest sprocket to the middle sprocket, it takes a good amount of effort to get it to jump into the next ring. its even harder to get it into the biggest sprocket. ive replaced the cable and housing with a fresh set, properly lubed it, and have been tuning this thing for the past two days. ive tried putting more tension on the cable, but no difference.
like i said, it does shift, its just very sloppy and takes a lot of effort to get it to shift. im thinking its either the shifter thats toasted or the deraileur itself thats toasted. any opinions, suggestions, tips or help would be really appreciated. id hate to replace something if theres just one little variable that i am not accounting for. thanks in advance.