211635
Governor Weight Pin
Cummins®

Introduction

The Governor Weight Pin 211635, a component from Cummins, is essential for the governor system in heavy-duty trucks. It regulates engine speed, ensuring optimal performance and longevity.

Function and Operation

This Cummins part operates within the governor system to regulate engine speed using mechanical principles. Connected to flyweights that spin with the engine’s output shaft, it translates the movement of these weights into mechanical action that adjusts the fuel input, maintaining a consistent speed despite varying loads or demands ¹.

Role in Truck Operation

The Governor Weight Pin ensures consistent engine speed under varying load conditions, which is vital for efficient and smooth truck performance. This consistency contributes to both performance and longevity of the engine ².

Key Features

Designed with high-strength materials, this part ensures precise movement and reliable operation within the governor system. Its design contributes to its performance and longevity ³.

Benefits

This part offers improved fuel efficiency through consistent engine speed, enhances engine performance by ensuring smooth operation under varying conditions, and reduces wear on other components, contributing to the overall longevity of the engine.

Installation and Compatibility

Proper installation of this part is crucial for its effective operation. Installation procedures should follow manufacturer guidelines to ensure correct placement and function within the governor system. Compatibility with specific engine models should be verified prior to installation.

Maintenance and Troubleshooting

Regular maintenance practices are recommended to ensure the longevity and optimal performance of this part. This may include periodic inspections for wear or damage, and ensuring that all connections and movements are free and unobstructed. Common issues that may arise include wear on the pin or flyweights, which can affect engine speed regulation. Troubleshooting steps may involve inspection, cleaning, or replacement of worn components.

Safety Considerations

When working with this part and the governor system, it is important to observe safety guidelines and precautions. This includes ensuring the engine is off and cool before beginning any work, using appropriate personal protective equipment, and following all manufacturer safety recommendations to prevent injury or damage.

Cummins Overview

Cummins Inc. is a leader in the design, manufacture, and distribution of diesel and natural gas engines, as well as related technologies. With a history spanning over a century, Cummins has established a reputation for quality, innovation, and reliability in the automotive industry. Its product range includes engines and components for on-highway and off-highway applications, power generation, and marine uses, among others.

Governor Weight Pin Compatibility with Cummins Engines

The Governor Weight Pin, part number 211635, manufactured by Cummins, is a critical component in the engine’s governor system. This part ensures the proper functioning of the engine’s speed control mechanism by maintaining the correct position of the governor weights. Here is a detailed overview of its compatibility with various Cummins engines:

Medium-Duty Engines

• K19
• K38
• K50

These engines, part of Cummins’ medium-duty lineup, utilize the Governor Weight Pin to maintain precise control over engine speed. The pin’s role is essential in ensuring smooth operation and efficiency.

Heavy-Duty Engines

• L10 MECHANICAL
• M11 CELECT PLUS
• M11 MECHANICAL

In the heavy-duty category, the Governor Weight Pin is integral to the L10 MECHANICAL, M11 CELECT PLUS, and M11 MECHANICAL engines. These engines benefit from the pin’s ability to keep the governor weights in place, which is crucial for maintaining optimal engine performance under heavy loads.

Industrial and Marine Engines

• N14 MECHANICAL
• NH/NT 855

The N14 MECHANICAL and NH/NT 855 engines, designed for industrial and marine applications, also rely on the Governor Weight Pin. This part ensures that the governor system functions correctly, providing reliable speed control in demanding environments.

High-Horsepower Engines

• QSK19 CM500

The QSK19 CM500 engine, known for its high horsepower output, incorporates the Governor Weight Pin to maintain precise speed control. This is particularly important in applications where consistent performance is critical.

Other Cummins Engines

• V28
• V903

The Governor Weight Pin is also compatible with the V28 and V903 engines. These engines, designed for various applications, benefit from the pin’s role in ensuring the governor system operates smoothly and efficiently.

Role of Part 211635 Governor Weight Pin in Engine Systems

The Governor Weight Pin (Part 211635) is an integral component within various engine systems, particularly those involving fuel management and governor mechanisms. Its function is to secure the governor weights within the governor assembly, ensuring precise control over engine speed and fuel delivery.

Interaction with Carrier Assembly and Governor Components

Within the Carrier Assembly, the Governor Weight Pin maintains the position of the governor weights, which are pivotal in sensing engine speed. As the engine speed varies, the centrifugal force acting on these weights changes, and the pin ensures they respond accurately without dislodging. This assembly is often found in conjunction with the Governor Cover, where the pin’s role is to keep the internal mechanisms stable and operational.

Fuel System Integration

In fuel systems, particularly those utilizing Woodward Pumps or similar technologies, the Governor Weight Pin interacts closely with the pump mechanisms. It ensures that the governor’s actions are transmitted effectively to the fuel control components. For instance, in systems like the Fuel Pump KV12 (Uncalibrated) or the Fuel Pump VS & TC, the pin’s secure placement is essential for maintaining the correct fuel flow in response to engine demands.

Compatibility with Various Pump Codes

The pin is designed to work with a range of pump codes, including CPL 187, CPL 190, CPL 218, CPL-10, CPL-136, CPL-138, CPL-174, CPL-26, CPL-69, and CPL170. Each of these pump codes represents different configurations and calibrations of fuel pumps, and the Governor Weight Pin must be correctly installed to ensure that the governor system can modulate fuel delivery appropriately across these varied setups.

Role in Uncalibrated Systems

In uncalibrated systems, such as the Pump, Uncalibrated Auto, and Pump, Uncalibrated VS, the Governor Weight Pin plays a significant role in establishing a baseline for fuel governance before calibration. Its accurate placement ensures that the governor can effectively manage fuel delivery, even in systems that have not yet been fine-tuned to specific engine requirements.

Summary of Component Interactions

• Carrier Assembly Weight: Secures governor weights for accurate speed sensing.
• Governor Cover: Houses the governor mechanism where the pin ensures stability.
• Woodward Pumps and Various Pump Codes: Ensures effective transmission of governor actions to fuel control components.
• Uncalibrated Systems: Establishes a baseline for fuel governance prior to calibration.

Conclusion

The Governor Weight Pin 211635 by Cummins is a vital component in the governor system of heavy-duty engines, ensuring consistent engine speed and efficient operation. Its proper installation, maintenance, and understanding of its role within various engine systems are crucial for optimal engine performance and longevity.