Uploaded January 2024 | Updated September 2026, 3 weeks ago

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I designed and built this engine to replace the single acting Mamod one on Traction engine and steam rollers.
It puts the cylinder inboard in a more realist position.
I don't have a Mamod engine but am now building my own version as the engine runs so well.
Big thanks to Retro SteamTech channel for giving me some dimentions of a Mamod roller.
Check out Allan's Roller restoration here: youtu.be/JBEpN2oVM10?si=3HuTkg4Mm4ayAK-5