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Harbor Freight Portable Generator Propane Conversion - With Parts List - Let's Figure This Out

Autos & Vehicles

Introduction

In this article, I'm going to walk you through the process of converting a Harbor Freight portable generator to propane. This is something I have never done before, and I'll take you step-by-step as we figure this out together.

Background

About a decade ago, my wife and I owned a campground here in Colorado. Among the many guests we hosted was a couple who owned a large fifth wheel trailer. They decided to sell it due to the husband’s declining health, and after purchasing it, we used it extensively until last year. In the back of that fifth wheel, there was a Harbor Freight generator—specifically a 7HP, 3500-watt max gasoline generator that had served us well.

The main concern I had with gasoline-powered generators is fuel degradation, especially during the winter months when we might not use it for extended periods. As such, I decided to convert this generator to propane, eliminating the need for gasoline and reducing the risks associated with stale fuel.

Choosing Parts

I sourced the cheapest propane conversion kit I could find on Amazon, which cost around $ 35. Given my extensive background with propane from RVing, I already have several propane tanks on hand—most notably a 100-pound bottle filled with propane that I haven't used since I left the campground in 2012.

However, the reviews indicated that this particular kit didn’t include any instructions, leaving me to figure it out on my own. Let’s dive into the conversion.

Initial Setup

Before starting the conversion, I wanted to make sure the generator worked. After a couple of pulls, it roared to life instantly, highlighting my hesitation about changing anything, especially since the generator had been reliable.

However, I knew I needed to move forward—so, let’s dismantle some parts and see how to fit the new propane components.

Conversion Process

  1. Removing the Carburetor: The first step was to take off the existing carburetor and attach the new propane adapter. Surprisingly, that part of the job was quick and straightforward.

  2. Testing with Gas: Before making the switch to propane, I started the generator on gasoline to ensure everything was functioning correctly. Once I confirmed it worked, I set to work draining any remaining gasoline to avoid mixing with propane.

  3. Installing Propane Components: After clearing the fuel lines, I hooked up the new propane components. This step involved understanding the connection between the generator and the propane bottle, including the correct regulators necessary for reducing and controlling pressure.

  4. Adjusting for Fuel: The kit included an adjustable pressure regulator, which I carefully calibrated. Following that, I primed the system and attempted to start the generator using propane.

  5. Final Testing: After a few attempts and adjustments, the generator sprang to life on propane. It didn’t work perfectly on the first try, but I learned the importance of understanding the equipment—especially the lack of instructions that left many aspects unclear.

Conclusion

Converting a Harbor Freight generator to propane was a rewarding task. While it was straightforward at times, it also presented challenges that required troubleshooting and a bit of learning along the way.

Parts List

With this guide and the parts list, you should have a clearer path ahead if you decide to make a similar conversion.

Keyword

FAQ

Q1: Why convert a gasoline generator to propane?

A1: Propane fuel is more stable than gasoline, especially over long periods, eliminating concerns about fuel degradation and carburetor issues.

Q2: What tools will I need for this conversion?

A2: Basic hand tools, such as a wrench and screwdriver, as well as any additional components specified in the conversion kit.

Q3: Can I keep the gasoline option available after conversion?

A3: Yes, you can opt to create a dual-fuel system by keeping the gasoline part active while also incorporating propane.

Q4: Are there any specific parts I need for conversion?

A4: A propane conversion kit, an adjustable pressure regulator, and suitable propane fittings are essential for a successful conversion.

Q5: Is the process difficult for beginners?

A5: While it may seem daunting, the conversion can be relatively straightforward for anyone who is handy or has basic mechanical skills.