The Villiers Mk 3G Horizontal is a prime example of British engineering brilliance, renowned for its unparalleled performance and reliability. This single-cylinder, air-cooled engine is a testament to the innovation and craftsmanship that has made Villiers a respected name in the automotive industry.

At the heart of the Mk 3G lies a robust cast-iron cylinder with a bore of 3.25 inches and a stroke of 3 inches, resulting in a generous displacement of 224 cubic centimeters. This ample displacement, coupled with a compression ratio of 6.8:1, generates an impressive maximum power output of 10 horsepower at a relatively low 3,500 revolutions per minute (rpm).

The Mk 3G employs a side valve configuration, with the valves actuated by pushrods and rockers. This time-tested design ensures reliable valve operation, even under the most demanding conditions. The engine is equipped with a centrifugal governor, which automatically regulates the engine speed to maintain optimum performance.

Fuel is delivered to the engine via a gravity-fed carburetor, which ensures a consistent air-fuel mixture. The carburetor is mounted on the engine's side, allowing for easy access and adjustment.

Ignition is provided by a magneto, which generates a high-voltage spark to ignite the air-fuel mixture in the combustion chamber. The magneto is housed within the flywheel, providing a compact and reliable ignition system.

Power from the engine is transmitted to the rear wheel via a chain drive. The chain drive is enclosed within a protective casing, ensuring durability and longevity.

The Mk 3G Horizontal is renowned for its exceptional starting capabilities. A manual recoil starter is fitted, allowing for effortless engine starts. Additionally, the engine is equipped with a decompression valve, which reduces the compression pressure during starting, making the process even smoother.

Overall, the Villiers Mk 3G Horizontal represents the pinnacle of British engineering. Its rugged construction, reliable operation, and impressive performance make it an ideal choice for a wide range of applications. Whether it's powering a small vehicle, a generator, or a pump, the Mk 3G Horizontal is sure to deliver dependable service for years to come.

Villiers general specification Sheet stroke Mk 10 to Mk 40

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