how to remove rust from gas tank motorcycle

3 min read 19-01-2025

how to remove rust from gas tank motorcycle

Rust in a motorcycle gas tank is a common problem, but it doesn't mean your tank is beyond repair. A rusty gas tank can cause fuel system issues, leading to poor performance and even engine damage. This guide outlines several methods to remove rust from your motorcycle gas tank, restoring it to like-new condition and preventing future rust.

Assessing the Damage: How Much Rust Are We Talking?

Before you begin, assess the extent of the rust. A few small spots of surface rust are much easier to deal with than heavy, pitted rust. For severely rusted tanks, professional restoration might be necessary. However, many cases of moderate rust can be tackled with DIY methods.

Light Surface Rust:

This is the easiest type of rust to remove. You'll likely only need a good cleaning and a rust-removal solution.

Moderate Rust:

Visible rust throughout the tank, potentially with some pitting. This requires more aggressive cleaning and possibly a sealant.

Severe Rust:

Extensive pitting, holes, or significant corrosion. This may require professional repair or replacement.

Methods for Removing Rust from Your Motorcycle Gas Tank

Several methods can effectively remove rust from a motorcycle gas tank. The best approach depends on the severity of the rust.

1. The Simple Cleaning Method (for light surface rust):

This method works best for light surface rust.

Thorough Cleaning: First, completely empty the tank. Then, remove as much loose debris and rust as possible using a shop vacuum or compressed air.
Solvent Cleaning: Rinse the tank thoroughly with a suitable solvent like lacquer thinner or gasoline. This helps remove any remaining debris. Caution: Always work in a well-ventilated area and wear appropriate safety gear (gloves, eye protection).
Scrubbing: Use a tank cleaning brush or a long-handled bottle brush to scrub the interior walls, paying close attention to areas with rust.
Rinse Again: Rinse the tank several times with clean solvent to remove all traces of rust and debris.
Drying: Allow the tank to dry completely before moving on to the next step (if needed).

2. The Chemical Method (for moderate rust):

For more stubborn rust, chemical rust removers are necessary.

Select a Rust Remover: Choose a rust remover appropriate for metal. Evapo-rust is a popular and effective choice. Follow the manufacturer's instructions carefully.
Submerge and Soak: Submerge the tank completely in the rust remover solution. The soaking time will depend on the severity of the rust and the type of rust remover used; refer to the product instructions.
Rinse Thoroughly: Once the rust is removed, rinse the tank extensively with clean water until all traces of the chemical remover are gone.
Neutralize: Some rust removers require neutralization after use. Follow the manufacturer’s instructions carefully.
Dry Completely: Allow the tank to dry completely, ideally with compressed air to help remove any trapped moisture.

3. The Media Blasting Method (for moderate to severe rust, requires specialized equipment):

For more substantial rust, media blasting is a highly effective method, but requires specialized equipment.

Professional Service: Consider taking your tank to a professional for media blasting. They possess the necessary equipment and expertise to perform the job safely and effectively.
Media Selection: Different media (glass beads, walnut shells, etc.) can be used depending on the severity of the rust and the desired finish.

Preventing Future Rust

After cleaning, it's crucial to prevent future rust formation. Several techniques can help:

Apply a Rust Inhibitor: A rust inhibitor coating will protect the inside of the tank and prevent future rust development. Many products are available, including those specifically designed for fuel tanks.
Seal the Tank: For added protection, consider a tank sealant to completely seal the interior. This prevents moisture from entering and causing further rust.
Keep the Tank Dry: Ensure the tank is completely dry before storing it. Store in a dry, climate-controlled environment.

Conclusion

Removing rust from a motorcycle gas tank can be a time-consuming process, but it's often a worthwhile endeavor. Choosing the right method depends on the extent of rust damage and the available tools. With careful attention and the right approach, you can restore your gas tank to its original condition, ensuring years of trouble-free riding. Remember safety first – always wear appropriate protective gear when working with solvents and chemicals.