Not much of an update. With the major parts of the valve gear made–slide valve, rocker, link, eccentrics and rods–I am now trying to fit it all together and tweaking the components. It’s tough–add half an inch here, take 3/16 of an inch there, to get the exactly right amount of slide valve motion and lead.
Here’s how the eccentric rods look connecting to the link. Below it is the reference photo from the same angle.