Uploaded May 2016 | Updated September 2026, 1 day ago
The sewing machine!
Modag 2-Takt diesel 4RZ 133, 4 cylinder, 53.2 litres (3246 ci in). This is a loop-scavenged two stroke diesel. The intake and exhaust ports are both in the walls of the liner, there are no exhaust valves in the cylinder head as seen on Detroit and Foden 2-strokes which are known as Uniflow Scavenged. Intake ports are fed by the roots blowers, and above these are the exhaust ports, as shown in the video.
The sewing machine!
Modag 2-Takt diesel 4RZ 133, 4 cylinder, 53.2 litres (3246 ci in). This is a loop-scavenged two stroke diesel. The intake and exhaust ports are both in the walls of the liner, there are no exhaust valves in the cylinder head as seen on Detroit and Foden 2-strokes which are known as Uniflow Scavenged. Intake ports are fed by the roots blowers, and above these are the exhaust ports, as shown in the video.










