>>1187877Slightly awkward, but entirely possible.
If you do break the chain, do it from the master pin and replace it with a new pin.
>>1188020It's less about what wrench and more getting it calibrated. Getting a beam-type wrench and having it calibrated is a good way to go. For a bicycle, super accurate isn't that importantanyway ; you're not building race engines after all.
Even cheap wrenches are only 10-15% off at most and usually high reading, so set it 10% lower than the max torque and you'll be fine.
>>1188026Sweet lord no, do not do this.
Anon said chamois cream and I have to agree on that one.
>>1188142after you replace you cables, you need to get into the habit of lubing the cable guide.
If the channels are gouged out, replace the guide; they're not expensive.