I am looking for information on this, anyone know anything about it?
My Model T era Stevens catalog only shows the normal type rod and piston gauge. The flat face being perpendicular to the rod.
this must be for only checking rods I guess, Bob
Hey Herman - what the heck does this thing do ?????????????
This tool could check for a twist in the rod or if the babbit was cut parallel to the wrist pin. Place the bottom of the rod on the shaft and only the end of the wrist pin in the top of the rod. The rest of the wrist pin will be on the flat surface of the tool and alignment can be checked. If the wrist pin does not rest flat on the tool, the rod is either twisted or the babbit was not poured properly. Just a guess.
Don about got it all there.
With Piston mounted, the edge on the same side as the shaft was used to check bend.
The machine came like what you have, along with a 1.250 reamer.
This was the first rod aligner, by Stevens, around the early 20's. I think they built 3 more different kinds after this first one.
Thank you and that is what she shaft measures, Bob
Here's my Stevens rod alignment fixture - sounds as though it might be one of the later style according to Herm. I also have the "sea-lion" indicator for checking bend & twist - my flywheel holder is currently attached but I do have mandrels for T & A rods.