Hello again in 2007 I built a 3" Case 65HP which was sold on three years ago. I now intend to build a 3/4" scale Case to Rudy's design with some improvements. One of the improvements I would like to add is the proper clutch like I had on my 3". The annoying thing is I can remember the beginning of the operation with the clutch leaver going forward and turning a leaver which turned a shaft which went out to the clutch. On the end of the crankshaft I can remember the sliding disc that operated the clutch over centre mechanism. What I can't remember is the link between the rotary shaft and the slider. Can anyone help please.