Of all the special tools required for a good mechanical restoration, few are as indispensable as an ultrasonic parts cleaner. This type of cleaner works by producing high-frequency sound waves that create cavitation bubbles in a cleaning solution. These bubbles implode near the surface of the objects being cleaned, effectively dislodging contaminants and dirt from the surface. Nothing does a better job at eliminating stubborn buildup on intricate or hard-to-reach components.
Ultrasonic cleaners are best used for removing dirt, grease, oil, and other contaminants from small parts like nuts, bolts, screws, washers, and even delicate components like carburetor jets or fuel injector nozzles. Carbs and injectors often have tiny passages that can get clogged with debris over time. Ultrasonic cleaners can clean these components thoroughly, making them ideal during a restoration.
Engine parts can be thoroughly degreased using an ultrasonic cleaner without the need for harsh chemicals. Ultrasonic cleaning is also an effective way to remove light rust and corrosion from metal parts. Because there is no mechanical abrasion, the ultrasonic process helps restore them to their original condition without affecting the finish.
How to use an ultrasonic parts cleaner
An ultrasonic cleaner is easy to use. You’ll need to make sure you have a cleaner with adequate capacity for your parts and cleaning solution. A small cleaner with around 9 liters of capacity will hold carburetors and other smaller parts and assemblies. A larger 27-liter tank may be required for major engine, brake, or other mechanical parts. Once you have your setup, you can begin.
Choose a cleaning solution – Choose an appropriate cleaning solution for the parts you’re cleaning and the contaminants you need to remove. For automotive parts, you may use specialized degreasers, rust removers, or general-purpose cleaning solutions. Ensure that the solution is compatible with the materials of the parts being cleaned.
Prepare the ultrasonic cleaner – Fill the ultrasonic cleaner’s tank with the appropriate cleaning solution according to the manufacturer’s instructions. Be sure not to overfill the tank, as there should be enough space for the parts to move freely during cleaning.
Prep the parts – Disassemble the parts you want to clean, removing any excess grease, oil, or debris manually. This step helps to maximize the effectiveness of the ultrasonic cleaning process.
Place the parts in the cleaner – Arrange the disassembled parts in the ultrasonic cleaner’s basket or tray, ensuring that they are fully submerged in the cleaning solution. Avoid overcrowding the parts, as this can reduce the cleaning effectiveness.
Set the cleaning parameters – Adjust the settings on the ultrasonic cleaner according to the manufacturer’s recommendations and the type of parts being cleaned. This includes selecting the appropriate cleaning cycle time and temperature, if applicable.
Start the cleaning cycle – Turn on the ultrasonic cleaner to begin the cleaning cycle. The ultrasonic waves generated by the cleaner will create millions of tiny bubbles in the cleaning solution, which will remove dirt, grease, oil, rust, and other contaminants from the parts.
Monitor the process – Keep an eye on the cleaning process to ensure that the parts are being cleaned effectively. Depending on the level of contamination and the type of parts, you may need to adjust the cleaning time or repeat the process for stubborn stains.
Rinse and dry the parts – Once the cleaning cycle is complete, remove the parts from the ultrasonic cleaner. Rinse them thoroughly with clean water to remove any remaining cleaning solution. Allow the parts to air dry completely or use compressed air to speed up the drying process.
Dispose of the cleaning solution – Properly dispose of the used cleaning solution according to local regulations and guidelines for hazardous waste disposal.
By following these steps, you can effectively use an ultrasonic parts cleaner for automotive restoration, ensuring that your parts are thoroughly cleaned and ready for reassembly or further restoration work.