[Walt Fricke]

The first time I tried this I used a borrowed depth micrometer and a stgraight edge made by sawing off the small arm of a carpenter's square. Holding things on by myself. I must have measured each side a dozen times. I made a graph and picked a kind of average. It seemed to work.

Years later, when I got the Stomski tool, I was able to use just a digital caliper. I didn't even have to attach the "foot" I had purchased to make its non-moving end steadier when attached to the caliper. The depth mike set I had purchased lies dormant. And the sprockets were spot on from a previous measurement with the carpentry piece. I was almost disappointed.

With one of my engines I am having a different issue. This motor, which I purchased, was made from two separate case halves. The machinist did a great job, it ran well, I kind of regret tearing it down because even the rod bearings, even after 100+ race hours shifting at 8,200 rpm, looked like they could go another hundred, etc.

But there are four "lips" involved with the straight edge. Two where the IS end cover bolts on, and two which are outside those and are where the motor hanger mount fits. In a normal engine the IS part is a bit farther out, and the edge rests on that, and just clears the others. But somehow things aren't quite that way here. I think I will have to make nicely flat steel shims to make the IS part stick out some, and add those into the calculations.

But my Stomski straight edge seems to be dead straight on both sides.