Cleaning a car gearbox, particularly the internal components, typically involves using specific cleaning solvents or degreasers rather than water to avoid damage.
The Recommended Cleaning Method
To clean the internal parts of a car gearbox, the primary method is to use a suitable cleaning solvent or degreaser. According to common practice and information provided, you should Apply an appropriate cleaning solvent or degreaser to the gears and other parts using a brush or rag. It's crucial to Follow the manufacturer's recommendations on the type of solvent to use. Different gearboxes may require specific types of cleaners.
Why Avoid Water?
When cleaning gearbox components, it is essential to Avoid using water. Using water can have detrimental effects on the gearbox components because it can cause rust and damage the gearbox. Water trapped inside can lead to corrosion and lubrication issues, severely affecting the gearbox's performance and lifespan.
Practical Cleaning Steps (General Guide)
A typical process for cleaning a gearbox internally (often done during a rebuild or when components are removed) might involve these steps:
- Drain Existing Fluid: Ensure all old gear oil is completely drained from the gearbox casing.
- Disassembly (if necessary): For thorough internal cleaning, the gearbox may need to be disassembled to access all gears and components.
- Apply Cleaning Solvent: Use a brush or rag to apply the chosen solvent or degreaser generously to all metal parts, including gears, shafts, and the interior casing.
- Agitate/Brush: Use brushes (like parts cleaning brushes) to scrub away stubborn deposits, grease, and grime.
- Soak (Optional): For heavily soiled parts, soaking them in a container of the appropriate solvent might be necessary.
- Rinse (with solvent): Some cleaning processes involve rinsing the parts with fresh solvent to remove the loosened dirt.
- Drying: Allow all parts to dry completely. Compressed air can help speed up this process and ensure solvent evaporates from all crevices.
- Inspection: Inspect all parts for wear or damage before reassembly.
Note: This process is typically performed by experienced individuals or mechanics during significant maintenance or repair.
Cleaning Agents Comparison
Based on the recommended practices:
| Cleaning Agent | Recommended? | Reason (based on reference) |
|---|---|---|
| Appropriate Solvent/Degreaser | Yes | Cleans gears and other parts |
| Water | No | Can cause rust and damage the gearbox |
Using the correct solvent is key to effectively removing old oil, grease, and contaminants without harming the metal components or seals. Always consult the gearbox service manual for specific cleaning instructions and recommended products.
