Setting up to start drilling the oilway through the flywheel, now that the bores are final sized. It’s quite a challenge getting a flat started in the right place, on an acute angle into toughened steel. Luckily the spot cutters managed it, ready for drilling next.

There isn’t room for a centre drill, so it’ll be a delicate job drilling the pilot hole. But with a following wind the final part of the wheel will be completed ready for pressing together.