Making the HCI R-220 – 7 Cylinder Radial Engine (designed by Jack Herford)
Making The Crank Shaft ; started out making the main shaft, but it did not work out so I used the part to make the Tail Shaft instead.
Making Crank Shaft parts
Making heads
- Making heads
Value Guides
Making Crank Case, yes it is madness to mill this out, but it will be stronger and better then a three part casting. It also come out cheaper if you do not consider time effort 😉
This is 10.5 inches diameter by about 11,5 inches long. I did practice first with the smaller Ageless 9 cylinder crank case which is smaller.
Foam pattern for crank case casting. I was going to do a lost foam pour but it’s just to much material for me to pour with my small foundry. And having it poured here would have been very expensive.