This is going to be a long and slow one, fellow tankers. It's taken me two tries to get the danged kit here for starters. First try was stymied by Border Control, but that's another story. This try was successful.

This build will be a total ground up gig. First up is the idlers. You know my fetish about bearings, so the first thing I did was install some 4 x 7 flangeless bearings, two each, in the idlers. You have to ease the 7 mm hole in each half of the idler down about 1.5 mm so the geometry of the axle shaft works, because the stock bronze bushings are pretty flush with the surface of the hole. The bearings have about 1.5 mm greater thickness on the 7 mm part, ergo the hole easing. This is accomplished with a flat spiral drill, available from DeWitt in numerous sizes.