3871310
Injector Rocker Lever Adjusting Screw
Cummins®

The Injector Rocker Lever Adjusting Screw, identified by part number 3871310, is a component manufactured by Cummins. This article provides an overview of this Cummins part, its function within the engine system, key features, benefits, and maintenance suggestions.

Basic Concepts

The Injector Rocker Lever Adjusting Screw is a mechanical component used in diesel engines to fine-tune the operation of the fuel injection system. It is part of the valve train mechanism that ensures precise control over the fuel injection timing and quantity. This component allows for the calibration of the injector rocker lever, which is important for maintaining the engine’s performance and efficiency ¹.

Function and Operation

The Injector Rocker Lever Adjusting Screw plays a role in the fuel injection system by allowing mechanics to make precise adjustments to the injector rocker lever. This adjustment ensures that the fuel injector opens and closes at the correct times, which is vital for optimal engine performance and fuel efficiency. By fine-tuning the injector rocker lever, the screw helps maintain the desired fuel injection timing, which directly impacts the engine’s combustion process ².

Key Features

• Precision Engineering: The screw is designed to provide accurate adjustments, ensuring that the injector rocker lever operates within the specified parameters.
• Durability: Made from high-quality materials to withstand the harsh conditions within a diesel engine, the screw is built to last.
• Easy Accessibility: Designed for straightforward access during maintenance procedures, the screw allows for quick and efficient adjustments.

Benefits

• Improved Engine Performance: Proper adjustment of the injector rocker lever can lead to better engine performance, as the fuel injection system operates more efficiently ³.
• Enhanced Fuel Efficiency: Accurate fuel injection timing contributes to more efficient fuel consumption, reducing the overall cost of operation.
• Reduced Emissions: Precise fuel injection helps in minimizing harmful emissions, contributing to a cleaner environment.

Troubleshooting and Maintenance

Regular inspection of the Injector Rocker Lever Adjusting Screw is recommended to ensure it remains in good condition. Signs of wear or malfunction may include irregular engine performance or changes in fuel efficiency. Maintenance procedures should follow the manufacturer’s guidelines to avoid damaging the component. It is important to address any issues promptly to maintain the engine’s performance and longevity ⁴.

Conclusion

The Injector Rocker Lever Adjusting Screw (3871310) is a vital component in the fuel injection system of diesel engines. Its precise engineering, durability, and easy accessibility make it an essential part for maintaining optimal engine performance, fuel efficiency, and reduced emissions. Regular maintenance and prompt troubleshooting are crucial to ensure the longevity and reliability of this Cummins part.

References