Installing a Powerful Onan 8KW Generator on a Sailing Vessel

Table of Contents

1. Introduction
2. The Need for a New Generator
3. The Experts' Verdict
4. Choosing the Right Unit
5. The Crane Operation
6. Installing the New Generator
7. The Functions and Features of the New Unit
8. The Impeller and Cooling System
9. Testing and Start-up
10. Conclusion

The Journey to a New Generator

Introduction

In January 15, we encountered a major setback when our trusty genset, after 17 years and nearly 7000 running hours, finally gave up on us. We spent days trying to troubleshoot and fix the problem ourselves, but it became apparent that we needed to call in the experts. This article dives into the process of replacing our old generator with a new one, highlighting the challenges we faced and the steps we took to get our boat up and running again.

The Need for a New Generator

After assessing our options, we determined that investing in a new unit would be a more viable long-term choice than attempting to repair an aging engine. The main coils had failed, a clear indication that the generator had reached the end of its lifespan. With the decision made, we prepared for the removal of the old generator and the installation of the new one.

The Experts' Verdict

Calling upon the expertise of professionals, we sought their advice on the best course of action for replacing our generator. Their prognosis wasn't optimistic, but we trusted their judgment and followed their recommendations. The experts confirmed that a new unit would be the most effective solution in terms of efficiency and reliability.

Choosing the Right Unit

Once we made the decision to purchase a new generator, we had to select the right unit for our needs. We considered factors such as power output, noise levels, and size. After careful evaluation, we settled on a Cummins generator that offered the ideal combination of performance and compactness.

The Crane Operation

With the new generator ready for installation, we had to coordinate a crane operation to remove the old generator from the boat and lower the new one into place. This was a delicate procedure, requiring the expertise of skilled operators and careful coordination to ensure success.

Installing the New Generator

The installation process involved a series of steps, including removing the old generator, cleaning up the area, and positioning the new unit. The new generator came equipped with various connections for fuel, sea water cooling, power, and exhaust. Our team carefully secured every component, ensuring a proper fit and functionality.

The Functions and Features of the New Unit

The new Cummins generator boasted several notable features that set it apart from its predecessor. It incorporated advanced controls, providing valuable information such as voltage, amps, and fuel consumption. It also featured a quieter operation and a fully enclosed design, making it more convenient and user-friendly.

The Impeller and Cooling System

One crucial aspect of the generator's operation was the impeller and cooling system. The impeller played a key role in drawing in saltwater for engine cooling. We examined the impeller's lifespan and explained its function, highlighting the importance of regular maintenance and monitoring for optimal performance.

Testing and Start-up

After completing the installation, we conducted thorough testing to ensure that the new generator was functioning correctly. We measured voltage, frequency, and other parameters to verify its performance. The initial start-up was successful, demonstrating that our boat was once again equipped with a reliable source of power.

Conclusion

In conclusion, the journey to replace our old generator with a new unit was challenging but ultimately rewarding. We overcame obstacles and relied on the expertise of professionals to make the right decisions. With the new generator in place, we can now set sail with the assurance that we have a reliable and efficient power source to support our adventures on the water.

Highlights

• The old generator failed after 17 years and nearly 7000 running hours.
• Investing in a new generator was deemed a better long-term choice than repairing the old one.
• The experts confirmed the need for a new unit due to failed main coils.
• Careful evaluation led to the selection of a Cummins generator.
• A crane operation was necessary to remove the old generator and install the new unit.
• The new generator featured advanced controls and a quieter operation.
• The impeller and cooling system were crucial for engine performance and reliability.
• Thorough testing ensured the functionality and efficiency of the new generator.
• The successful replacement of the generator provided a reliable power source for future journeys.

FAQs

Q: How long did the old generator last before failing? A: The old generator lasted for 17 years and nearly 7000 running hours before it failed.

Q: Why did you decide to invest in a new generator instead of repairing the old one? A: The main coils of the old generator had failed, indicating extensive wear and tear. After weighing our options, we determined that a new unit would provide better long-term reliability and efficiency.

Q: What factors were considered when choosing the new generator? A: We considered factors such as power output, noise levels, and size when selecting the new generator. After careful evaluation, we chose a Cummins generator that met our requirements.

Q: How did you ensure the successful installation of the new generator? A: The installation process involved careful planning, coordination with crane operators, and securing all necessary connections. Our team followed precise steps to position the new generator and ensure its proper functionality.

Q: What features set the new generator apart from the old one? A: The new Cummins generator boasted advanced controls, providing valuable information such as voltage, amps, and fuel consumption. It also featured a quieter operation and an enclosed design for improved convenience.

Q: What role does the impeller play in the generator's operation? A: The impeller is responsible for drawing in saltwater for engine cooling. Regular maintenance and monitoring of the impeller are essential for optimal performance.

Q: How was the new generator tested before use? A: Thorough testing was conducted to measure voltage, frequency, and other parameters to verify the new generator's performance. The initial start-up was successful, ensuring its functionality and efficiency.