Micro 4-CYCLE, Lubricationsystem | Subaru Robin Power Products EX27

MICRO 4-CYCLE

Try not to let the name mislead you.

For as small as the Micro engines are in size, they’re more than huge in power and performance. The lightest and most compact engine series in its class, Subaru Robin’s Micro engines showcase advanced technology and engine design all in one compact, efficient unit.

ULTRA LIGHT AND WELL BALANCED

BENEFITS

Easy-to-carry Micros are ideal for handheld equipment, such as backpack blowers, mini-tillers, water pumps and cement screeds, among many other applications. At just 8 pounds, these quiet, compact engines are easy to maneuver and maintain. The result is less operator effort and fatigue, which ultimately means higher productivity.

•Introduced as the lightest and most compact 4-cycle engine in its class.

•The unique lubrication system, with a separate oil chamber, guarantees a smooth, stable-running engine throughout a wide range of operating positions.

•The Micro 4-cycle OHV design combined with an automatic decompression system provides an easy pull and reliable starting.

#1- Powder metal inserted cam gear ensures extra protection for added durability and extended performance life.

POWERFUL AND RESPONSIVE

With high torque and horsepower output, these state-of-the-art compact engines provide a lot of bang for the buck. The Micros feature quick throttle response and a wide rpm range with low vibration. The unique lubrication system with a separate oil chamber ensures smooth and stable running throughout a full range of operating positions.

•Quick throttle response and wide rpm range meet the requirements of demanding applications.

•Compared to a 2-cycle engine, the Micro 4-cycle OHV design emits one-tenth the emissions and uses half as much fuel.

•Heavy-duty crankcase design with hard chromium plate cylinder and forged steel rocker arm ensures maximum reliability.

KEY FEATURES

1	Powder metal inserted cam gear

2	High-carbon steel crankshaft

#2- High-carbon steel crankshaft with ball bearings on both ends ensures ultimate reliability in heavy load applications.

LUBRICATIONSYSTEM

The Subaru Micro engines are designed to run in a wide range of positions. The patented oil lubrication system is elegant in its engineering simplicity. The natural pressure changes in the crankcase caused by the piston movement in the cylinder are harnessed to pump the oil throughout the engine. Oil is pumped from a reservoir in the base of the engine through a network of one-way valves for reliable lubrication and long engine life without the need to keep the engine level.

Rocker Chamber

Oil Separator
Check Ball	Cam Gear Chamber
Check Ball
Oil Tank

with ball bearings on both ends

	5	3	Connecting rod with needle
	1		bearing inserts
3	1
3
	2	4	Hi-temp fluoride oil seal
	4	4	Hi-temp fluoride oil seal

5Automatic decompression system

#3 - Connecting rod with needle

bearing inserts offers true bearing support to provide dependable performance in the toughest applications.

#4 - Hi-temp fluoride oil seal ensures maximum protection.

Blow–by (Oil Mist) Flow Oil Flow

EX27 specifications

The Subaru Robin Power Products EX27 is a versatile and robust engine designed for various applications, ranging from industrial equipment to agricultural machines. Renowned for its reliability and performance, the EX27 has become a preferred choice among professionals seeking durable power solutions.

One of the standout features of the EX27 is its 4-stroke, air-cooled, overhead cam design, ensuring efficient fuel consumption and reduced emissions. This engine produces a maximum output of 9.0 horsepower at 3,600 RPM, offering ample power for demanding tasks. With a displacement of 270cc, the EX27 combines performance with compactness, making it easy to integrate into various equipment.

The EX27 incorporates Subaru's innovative technologies, such as the patented floating piston technology, which minimizes vibration and enhances overall engine life. This feature is particularly crucial for users who operate equipment for extended periods, as it contributes to operator comfort and reduces wear on machinery. The engine also includes a dual-element air filter, providing superior protection against dust and debris, thereby ensuring longevity even in harsh environments.

Another key characteristic of the EX27 is its easy-start recoil system. This design simplifies the ignition process, allowing users to quickly fire up the engine, enhancing productivity, especially in commercial applications. The engine is also equipped with a large-capacity fuel tank that allows for longer run times between refueling, ensuring minimal downtime during operation.

Durability is at the core of the EX27's design, featuring a heavy-duty crankshaft and aluminum die-cast construction that withstands the rigors of daily use. Its lightweight nature also helps in reducing the overall weight of the equipment, making it more portable and easier to handle.

In summary, the Subaru Robin Power Products EX27 stands out for its combination of power, efficiency, and durability. With innovative technologies and user-friendly features, this engine is suitable for a wide range of applications, offering reliability that professionals can count on. Whether for construction, landscaping, or agricultural tasks, the EX27 proves to be a worthwhile investment for anyone in need of a dependable power source.