So today, I began. The tasks I took on today were pedals, cranks, and bottom bracket (the dingus in the frame that spins when you turn the pedals and cranks); the rear dérailleur ; and the saddle and post. Here's what I did and what I learned:
- The torque specification on the bottom bracket is fussy: too tight, and you can ruin the bracket (cheap) and/or the frame (NOT cheap), too loose and you get the most annoying clicking when you pedal (don't ask how I learned that). My torque wrench only registers in one direction... but I learned (when looking for something else) that the torque wrench can be disassembed and reassembled to register the other way. This is important because one side of most bottom brackets has reverse threads. My torque wrench is now marked so I know which way the torque registers.
The rear dérailleur has two little follow-wheels around which the chain goes; they were filthy with grease and road junk. I cleaned them off, and then made almost every mistake one can make reassembling:
- There's an upper and a lower wheel. They have different-sized bolts for axles (which is obvious) and different sized washer bearings (which is not). The larger-holed washers will fit on the smaller bolt; the opposite is not true.
- The lower wheel has a directional marking, and it's not intuitive which way it goes;
- Nor is the chain routing intuitive. Luckily, the correction only requires removing the two axle bolts.
- Disassembling and reassembling the dérailleur affects the cable adjustment.
In the near future, I plan to do the following:
- Put on new brake shoes, and adjust the toe-in and fit of the brakes;
- Disassemble the headset/fork/handlebar assembly, and re-grease the bearings;
- Move the brake-shifter controls a little higher on the handlebars;
- Install a new cable guide under the bottom bracket.

