A day out of the workshop for looking after my grandson, and watching my daughters husbands eldest son from his first marriage playing football, and cheering him on for kicking 3 goals in the last quarter….!!
But back into the workshop today.
First I bored the big end bearings.
Then some finishing turning and polishing for the con rods, and a decorative groove.
Then bored and reamed the the crossheads for gudgeon pins. For once, the 3 cylinders were the same, so measure the first then quickly repeat the process for the next two.
Then, for a bit of fun, I assembled everything done so far.
Next on my list, the pistons and piston rods. Big decision. Rings. Cast iron or packing.
ps. Neither. Cast iron rings in gunmetal cylinders not a good idea. Gunmetal would wear excessively. Graphite impregnated packing would be OK, but I am probably going to use Viton O rings. Easy to install, fairly inexpensive, and quite suitable in an engine which is unlikely to see any serious work.