Dating back to the 1920s—an industrial era devoid of electronic chips or plastic components—an American-made "Hit-and-Miss" internal combustion engine served as the core power source for cement mixers at major construction sites. With its rugged, pure steel-and-brass construction and stable, reliable performance, it became an industrial icon that defined the era, embodying the unique, raw romance and rhythmic mechanical pulse of vintage machinery. Crafted through the joint expertise of the RETROL and OKMO teams, this 3.6cc vertical four-stroke desktop engine is a meticulously recreated miniature, scaled at approximately 1:5. Constructed from cast brass and precision CNC-machined components, the all-metal engine faithfully replicates four original systems: evaporative water cooling, mechanical fuel delivery, visible drip-feed lubrication, and mechanical contact-point ignition. With its exposed piston, connecting rod, and visible oil pathways, it authentically reproduces the signature "Hit & Miss" intermittent firing rhythm and rich mechanical sound. Delivered as a Ready-to-Run (RTR) unit on a solid wood base, it is available in three classic colors—Industrial Red, Farm-Machinery Green, and Navy Blue. Combining collectible, educational, and aesthetic value, it encapsulates the spirit of century-old American industrial power—the "soul of the mortar mixer"—right on your desktop.
Product Features:
1. Classic Tribute & Recreation: Modeled after early 20th-century American "Hit & Miss" engines, this 3.6cc vertical four-stroke model faithfully recreates the appearance and operation of vintage power machinery, authentically capturing the iconic intermittent firing rhythm and mechanical charm.
2. All-Metal Mechanical Structure: Features a cast brass body with precision CNC machining. It is equipped with a full suite of functional components, including mechanical fuel delivery, visible drip-feed lubrication, evaporative water cooling, and mechanical contact-point ignition. The exposed piston and connecting rod provide a clear, intuitive view of the internal combustion engine's operating logic.
3. RTR Collectible Model: More than just a model that runs like a full-sized engine, it is a collectible piece that embodies the history of American industrial civilization and mechanical evolution, allowing enthusiasts to experience the charm of century-old industrial power equipment up close.
4. Solid Wood Base & Three Color Options: Comes with a vintage-style solid wood base and is available in three classic retro colors—Industrial Red, Farm-Machinery Green, and Navy Blue—to suit various collection themes and decor styles. Its compact, sturdy build creates a strong industrial atmosphere when displayed on a desktop. 5. Ideal for Desktop Display and Gifting: Combining mechanical artistry, industrial history, and engineering culture, it is perfect for engine collections, desk displays, STEAM demonstrations, and gifts for mechanical enthusiasts—a classic piece that industrial model collectors won't want to miss.
Dimensions: 12 x 11.5 x 17 cm (engine) / 13.5 x 11.5 x 19.5 cm (including base)
Weight: Approx. 1.5 kg
Configuration: RTR (Ready-to-Run)
Engine Type: Hit-and-Miss Gasoline Internal Combustion Engine
Cylinder: Vertical Single-Cylinder
Stroke: 4-Stroke
Displacement: 3.6cc
Bore: 16.0 mm
Stroke Length: 19.0 mm
Starting Method: Manual / Electric Drill Start
Cooling System: Evaporative Water Cooling
Ignition System: Mechanical Trigger-Controlled Igniter (Included)
Starting Power: 1.5V Battery (Not included; AA battery recommended)
Spark Plug: Imperial Thread 3/16-40 (Included)
Lubrication: Splash Lubrication (Oil-Fuel Mix)
Lubrication Ratio: Gasoline-to-Oil Ratio 25:1 to 30:1
Fuel: Gasoline (Not included; 92# or higher recommended)
Oil: Engine Oil (Not included; 2T/4T 10W50 recommended)
Recommended Age: 16+
Packaging: Color Box
Package Contents: Engine x1, Drill Start Rod x1, Pull-Cord Starter x1, Instruction Manual x1