Are you suggesting that it is poor practice to polish the spindle shaft to allow the spindle gear to slide on easily?Inigo wrote:But Harold talked about shimming the main spring arbour, to avoid the bull gear from attacking the spindle sideways. Nothing to do with the spindle gear and governor worm. I'm suffering this case. One thing is that if you fix the drive gear well up against the upper motor plate, the imperfections don't let it run smoothly. You have to leave a small gap between them. Advice: when installing the drive gear, don't push it up the spindle completely. The sliding surfaces of the set screw collar and the upper motor plate are not polished, so the spindle will be retained at one or more places in one turn. This eats out the spring power, and the effect is a clanking noise in the governor, for it is losing the power that drives it, and the gear backlash comes into action.
Dave D