Keith Edwards | Meccano Horizontal Steam Engine 7.16 @CaverKeith | Uploaded 3 years ago | Updated 16 hours ago
From a 1954 Meccano instruction manual.
Amazingly this didn't require much modification to get it working smoothly - just a lot of patience!
The main modifications are:
1. More cross-bracing on the bearing for the flywheel.
2. Modified cross-head slide.
3. Replaced 1" pulleys and angle brackets with bush-wheels for crack for valve mechanism.