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How about considering one of the WW2 sleeve valve aircraft engines?

Thanks for all the info folks. It's the backyard/home shop solutions that will help me the most right now. I have an interest in sleeve valve engines and want to experiment around with some single cylinder variations. I am considering making the engine blocks from weldments. Castings would be...

By bending stress I refer to the pull the welds put on the parts. My experience with welding is that the cooling weld tends to pull on the parts which can cause the parts to move towards each other. Weld two parts at 90 degrees and after welding you usually find the parts at slightly less than...

Mild steel would be the material but wouldn't the bending stresses and hardness of the welds still be a problem?

Hey folks, I would like to use weldments for a project but not sure how to prepare them for machining. I believe the process is called normalizing but maybe that's not the right technical term. As I understand it, I need to soften the welds and relieve the stresses in the metal from the welding...

What are you using for the investment. Purchased product or something home made?

NIce looking castings. You are getting a pretty nice finish on them.

Would love to see pics of your setup. Looking to upgrade from my current 5 gallon bucket charcoal furnace. Would be really nice to avoid the castable refractory.

Hello folks, My name is Paul and I just wanted to introduce myself. I've been sitting in the background reading and soaking up information. I have an interest in gas engines, primarily hit and miss but throttle governed. I also have an interest in sleeve valve engines. Don't have much in the...