What Happens if an Air Filter Gets Wet?
A well-functioning engine is the beating heart of your powersports vehicle - whether it's a motorcycle, an ATV, or a side-by-side. But have you ever given thought to what's ensuring its clean, unobstructed operation? 
Each ride, your engine is under assault. Dust, debris, insects, all trying to infiltrate the system.
These contaminants, seemingly insignificant, can wreak havoc on your engine's intricate mechanics, leading to decreased performance and, ultimately, costly repairs.
Now, you might think, "I take good care of my engine. Regular oil changes, timely servicing - I've got it covered." But there's an unsung hero, often overlooked, working tirelessly to safeguard your engine - the air filter.
The air filter is your engine's frontline defense, trapping these damaging particles and ensuring they never make their way into the heart of your vehicle.
But just like any other part, it needs attention and care. Keeping your air filter clean and dry is paramount for your engine to operate at its peak efficiency.
So, let's dive deeper into the potential problems a wet air filter can cause, and the steps you can take to prevent them, ensuring your rides stay smooth and your engine stays healthy.
Related: 5 Easy Steps to Clean Your Clogged Air Filter
Types of Air Filters
There are mainly two types of air filters: reusable and disposable.
Reusable Air Filters
These types of filters, such as foam and fabric ones, are often found in off-roading vehicles and ATVs.
Reusable air filters can be cleaned and treated with a special oil to keep them working optimally.
Disposable Air Filters
On the other hand, disposable air filters, typically made of paper, are more commonly used in road bikes and other similar vehicles.
As the name implies, these cannot be cleaned and must be replaced when dirty.
Air filters come in various types and materials, each with its own pros and cons. Here's a simple breakdown:
|
Air Filter Type |
Pros |
Cons |
|
Paper-Based |
Cheap and disposable. Effective at filtering out particles. |
Can't be cleaned, must be replaced. Not water-resistant. |
|
Cotton-Based |
Can be cleaned and reused. High performance. |
Requires specific cleaning and oiling. More expensive. |
|
Foam-Based |
Great for off-roading due to high dust capacity. Can be cleaned and reused. |
Requires specific cleaning and oiling. Not as effective at filtering smaller particles. |
Choosing the right air filter depends largely on your vehicle type and use. Make sure to consider these factors when making a decision.
The Consequences of a Wet Air Filter
If your air filter gets wet, it can lead to several potential issues.
Let's examine these problems in more detail.
Engine Choking or Running Rich
A wet air filter can cause the engine to choke or run rich. This happens when the water blocks the flow of air, causing an excess amount of fuel to mix with less air, leading to a rich-running engine.
Related: Should You Run With The Choke Open Or Closed?
Reduced Airflow Efficiency
The tiny spaces in an air filter are designed for efficient airflow.
When an air filter becomes soaked, these spaces can become clogged, significantly reducing the engine's performance.
Related: Alarming Symptoms of a Clogged Air Filter
Contaminants Buildup
When an air filter gets wet, dust and debris can stick to it more easily.
Over time, this can cause a buildup of contaminants that can affect the vehicle engine's efficiency and performance.
Displacement of Air Pathways
Water can displace and close off the pathways that air takes through the filter and into the engine.
This disruption can cause the engine to run poorly and possibly damage it over time.
Signs Your Air Filter May be Wet
Here are some symptoms that your air filter might be water-soaked:
Sputtering and Misfiring
One of the most common symptoms of a wet air filter is a sputtering engine. You might also experience misfiring during ignition.
Rough Idling and Hard Starts
If your engine has rough idling or if it is hard to start, it might be due to a wet air filter.
This is because a wet air filter disrupts the air-fuel balance needed for the engine to run smoothly.
Gasoline Smell
If you notice a strong gasoline smell, this might be another sign that your air filter is wet.
The odour is due to the rich-running engine caused by the wet air filter disrupting airflow.
Prevention and Maintenance of Air Filters
Maintaining your air filter is crucial in preventing these problems. Here are some measures you can take.
Cleaning and Replacing Air Filters
Cleaning a reusable air filter involves washing it, letting it dry, and then treating it with special oil.
A fabric air filter cleaning kit is often used for this. For disposable air filters, replacement is necessary when they become dirty.
Routine Check-ups for Your Powersports Vehicle
Having regular maintenance checks on your vehicle is a good practice. This can help detect issues early on, including issues with your air filter.
In Summary
To ensure your powersports vehicle runs smoothly, it's important to maintain a clean and dry air filter.
Whether you have a reusable or disposable air filter, keeping it free from water and contaminants is key to the engine's performance and longevity.
FAQs
Can I still use my vehicle if the air filter is slightly wet?
Technically, a slightly damp air filter might not immediately hinder the functioning of your engine. However, it's important to note that even a small amount of water can start to cause issues over time. Water can clog the filter, reduce airflow, and cause the engine to run rich, which might not be noticeable at first but can degrade engine performance and fuel efficiency gradually. Consequently, it's always advisable to dry out a damp filter or replace it if necessary, to avoid any potential long-term damage to your engine.
Can I clean a disposable air filter?
Disposable air filters, typically made from paper, are designed for single use and therefore can't be effectively cleaned. Attempting to clean these filters can actually do more harm than good, causing the filter to break down or allowing larger contaminants to pass through and enter the engine. So, once a disposable air filter becomes dirty or wet, it should be replaced promptly to maintain optimal engine performance and efficiency.
How often should I replace my air filter?
The frequency at which you should replace your air filter depends on various factors including the type of vehicle, the conditions in which you're driving, and the type of air filter in use. As a general rule, many vehicle manufacturers recommend replacing air filters every 12,000 to 15,000 miles. However, if you frequently drive in dusty or polluted environments, you may need to replace your filter more often. Always refer to your vehicle's owner's manual for specific guidelines. Remember, a clean filter is vital for maintaining engine health and fuel efficiency.
What oil should I use for a reusable air filter?
Reusable air filters, often made from foam or fabric, need to be oiled after cleaning to ensure they work effectively. It's important to use an oil specifically designed for air filters, such as foam filter oil or fabric filter oil. These types of oil have a specific viscosity and tackiness to them that helps catch and hold onto airborne particles without disrupting airflow. You can usually find these oils at auto parts stores or online. Using the wrong kind of oil can lead to decreased performance and potential engine damage, so always ensure you're using a suitable product for your specific filter type.
Can a wet air filter damage the engine?
Yes, a wet air filter can indeed lead to several issues that can cause damage to the engine over time. When the air filter is wet, the flow of air into the engine can be significantly obstructed. This can cause the engine to run 'rich', which means there's too much fuel and not enough air in the combustion mixture. Over time, this imbalance can lead to poor fuel efficiency, reduced engine performance, and even serious damage to components such as the spark plugs and the catalytic converter. Moreover, water in the filter can cause dust and other particles to stick to it, further restricting airflow and leading to even more engine issues. Therefore, it's essential to address a wet air filter situation promptly to avoid costly repairs down the line.