Join me as I tackle the challenges of repairing and rebuilding my custom rotary valve engine after a dramatic failed start and heavy smoke. Watch the detailed disassembly, from removing the covers to ...

Rotary engines made their biggest impact in Mazda sports cars, but a recent episode of "Jay Leno's Garage" delves into the rotary's earlier history. Before it was popularized by Mazda, the rotary ...

The internal combustion engine, for all its mechanical sophistication, still runs on a 19th-century mechanical idea: pistons rising and falling, a crankshaft spinning, a steam-age architecture ...