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I am looking for any advice for making a vane pump to pressure the crank case of a 2 cycle radial engine. I have a basic understanding of how it functions and prefer to draw air in the back and push it out the front. Pump will be crank driven.

You mention a source for steel connecting rods and needle bearings. Can you share that information. A spider vs a master rod. What are the benefits of either design. Thanks for all your advice.

Any thoughts on 2024- 351. You mentioned 2024 t3. I plan to use press in caged roller bearings so they will not be running on a journal directly. Thank you.

I am currently working on building a 2 cycle 5 cylinder radial engine. I started off using weed eater cylinders pistons and rods. As I am mocking this up I am realizing I will not be able to use the original connecting rods. I do like their design though. They appear to be simple aluminum with...