With my used Roundhouse Sammie I got thier Walschaerts valve gear set. The previous owner was looking at ways to install it on the model but never tackled it as it looked like either a new frame or extension brackets were needed. Going by the measurments in the supplied instructions, the shaft that supports the expansion link would side right on top of the frame rail on Sammie, right behind the driver spring detail on the top frame rail. I used the supplied “penguin” bracket as Roundhouse calls them, to support just the expansion link. I angled the bracket rearward and drilled the upper frame rail. Then bolted tight with a small cap screw and nut. I then used the twin nuts on the other end to clamp to the frame. I believe I can mount a second set of “penguin” brackets to hold the rock shaft for the lift links to shift the valve gear. Need to see if Jay can get me 2 more from Roundhouse, otherwise I will have to fabricate a pair. I then reset the valve timing to suit the new motion and tested on air. After a successful test on air, I used a cut off wheel in my dremel to remove a section of the slip eccentric rod on the back side of the rear driver from underneith. This allowed me to slide the old eccentric rods out from behind the rear drivers. Before Sammie is run much on steam, I will put the chassis in my degreasing parts tank and flush all the debris and grit from the rear drivers. For now the valve gear seems to stay in forward gear ok, so I will probably run that way at the steam up in Urbana, IL next Saturday. Mike
