Subaru EH72 FI User Instructions

Subaru EH72 FI Engine manual cover
Pages 80
Year 2009
Language(s)
English en
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Spanish sp

Subaru EH72 FI Engine Specification

The Subaru EH72 FI engine is a robust and efficient power unit designed for versatile applications. With a displacement of 720cc, this four-stroke, V-twin, overhead valve engine offers a balance of power and efficiency. It features electronic fuel injection (EFI), enhancing fuel efficiency, reducing emissions, and improving start-up performance under various environmental conditions. The engine delivers a maximum output of approximately 25 horsepower at 3600 RPM, making it suitable for demanding applications such as generators, construction equipment, and industrial machinery.

The EH72 FI incorporates a forced air-cooling system, ensuring optimal temperature regulation and prolonged engine life. Its lubrication system is a full-pressure type with an oil filter, which guarantees efficient oil distribution and reduces wear on moving components. The engine's design includes a cast iron cylinder liner, providing added durability and resistance to wear. An electric starter system facilitates easy ignition, while the engine's compact design allows for flexible installation in various equipment configurations.

Attention to environmental standards is evident in the engine's compliance with EPA and CARB emissions regulations, making it a viable option for use in regions with stringent environmental laws. The engine's robust construction and advanced technology ensure reliability and longevity, minimizing downtime and maintenance needs. Overall, the Subaru EH72 FI engine stands out for its combination of power, efficiency, and environmental compliance, making it a preferred choice for a wide range of industrial and commercial applications.

Subaru EH72 FI Engine F.A.Q.

What is the recommended oil type for the Subaru EH72 FI engine?

The recommended oil type for the Subaru EH72 FI engine is SAE 10W-30, which provides optimal performance in a wide range of temperatures.

How often should the air filter be replaced on the Subaru EH72 FI engine?

The air filter should be inspected every 50 hours of operation and replaced every 200 hours or as needed, depending on the operating environment.

What are the symptoms of a failing fuel injector in the Subaru EH72 FI engine?

Symptoms of a failing fuel injector include rough idling, decreased fuel efficiency, engine misfires, and the presence of fuel odors.

How can I troubleshoot a starting issue with my Subaru EH72 FI engine?

Start by checking the battery, ensuring fuel is reaching the engine, inspecting the spark plugs, and verifying that there are no blockages in the air intake system.

How should I store my Subaru EH72 FI engine during the off-season?

Drain the fuel, clean the exterior, change the oil, disconnect the battery, and store the engine in a dry, cool place.

What is the proper way to adjust the valve clearance on a Subaru EH72 FI engine?

To adjust the valve clearance, remove the valve cover, rotate the engine to top dead center, and use a feeler gauge to adjust the clearance to the manufacturer's specifications.

How can I improve the fuel efficiency of my Subaru EH72 FI engine?

Regular maintenance such as keeping the air filter clean, ensuring proper tire pressure, and using the correct grade of oil can help improve fuel efficiency.

What maintenance steps should be taken to extend the lifespan of the Subaru EH72 FI engine?

Perform regular oil changes, keep the cooling system clean, inspect and replace the air and fuel filters as needed, and follow the manufacturer's routine maintenance schedule.

Why is my Subaru EH72 FI engine overheating and how can I fix it?

Check for low coolant levels, inspect the radiator for blockages, ensure the cooling fan is functioning properly, and verify the thermostat is working.

What should I do if the Subaru EH72 FI engine emits unusual noises during operation?

Unusual noises can indicate loose components, insufficient lubrication, or mechanical issues. Inspect the engine for any visible issues and consult the service manual or a professional for further diagnosis.