Our friend Gary has found an Otto engine, something that he has wanted for a long time. He brought it home from an auction, and it had come here from Argentina! It is important to note that the engine was seized, but Gary has had a great deal of experience with engines that have sat in disuse. The time from unloading to running in the video is five weeks and a day, and Gary worked on it only in his spare time! Amazing!
Photo used with permission of Gary Bahre.
The Otto four stroke cycle is the system that we use in most internal combustion engines to this day. It is interesting to note that the Otto hit-and-miss governing system coasted against compression with both valves closed. Most American hit-and-miss engines coast with the exhaust valve open. Slow Gary's video down with the Settings feature at the bottom right corner and you can see the top of the pushrod toggle over to miss the rocker arm when the engine is coasting.
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