Now everything has cooled down, Bob finished drilling the oilway in the timing shaft. The shaft itself was drilled through in the lathe when it was built, as was the flywheel on the Mill.

With the two now pressed together it’s simply a case of drilling through the pilot hole in the flywheel into the shaft, to pick up the hole along the axis. That completed and checked out with an airline, it’s finished!

Now we just have to complete the assembly and press in the crankpin.