Work holding in a lathe.

[tonyfoale]

A very logical and secure way to do piston machining without stressing or deforming. I have been wondering how your engine build is progressing. Well done.

Alan,

When I get a moment I'll post some details of the cylinder boring and honing, I know that is of interest from your comments on the boring setup that I posted a couple of years back. Cylinder boring without a cylinder borer.
That turned out very well.

My real engine build has progressed slowly. I lost momentum when Covid came along and I turned my attention to other things like the electronic lathe control, other tool making and even a bit of garden work. I am glad to report that I am now cured of the gardening attack and have turned my attention to more worthwhile pursuits. I decided to prepare a closer to stock engine to get back to racing ASAP and the motivation has returned, I am aiming to get back to racing in June. The piston in this post is just for this stop gap engine. Once I am back on track I will set up a dynamometer cell to develop the new engine. I have had a watercooled eddy current unit sitting in a box for a few years and it is time to give it some use.