Nissan Nv200 Catalytic Converter Shield
The Nissan NV200, a popular choice for small businesses and urban transportation, has unfortunately become a frequent target for catalytic converter theft. The rising prices of precious metals – platinum, palladium, and rhodium – within these converters make them a lucrative target for thieves. This article provides a detailed look at catalytic converter shields for the NV200, covering their purpose, types, installation, and considerations for choosing the right one.
Why a Catalytic Converter Shield?
Before diving into the specifics of shields, let's understand why these thefts are so common. Catalytic converters are part of the exhaust system and are designed to reduce harmful emissions. They contain a ceramic honeycomb coated with precious metals that act as catalysts to convert pollutants like hydrocarbons (HC), carbon monoxide (CO), and nitrogen oxides (NOx) into less harmful substances like carbon dioxide (CO2), water (H2O), and nitrogen (N2). Because of the valuable metals inside, they are easily accessible under the vehicle and can be quickly removed with a reciprocating saw or other cutting tools.
A catalytic converter shield acts as a physical barrier, making it significantly more difficult and time-consuming for thieves to steal the converter. This increased difficulty often deters thieves from targeting a vehicle equipped with a shield.
Types of Catalytic Converter Shields for the NV200
Several types of shields are available for the Nissan NV200, each with its own advantages and disadvantages. Understanding these differences is crucial for making an informed decision.
Plate Shields
Plate shields are the most common type. They typically consist of a solid piece of metal (usually aluminum or steel) that bolts or rivets to the vehicle's frame around the catalytic converter. They provide a direct barrier, making it difficult to access the converter from below.
Pros:
- Relatively inexpensive.
- Simple design, making installation straightforward.
- Provides good overall protection.
Cons:
- May not be as effective against determined thieves with specialized tools.
- Can sometimes trap heat around the catalytic converter, potentially affecting its lifespan (though this is less of a concern with proper design and ventilation).
Cage Shields
Cage shields are constructed from a series of metal bars or mesh that surround the catalytic converter. They offer a more open design compared to plate shields, potentially improving airflow and reducing heat buildup. However, they might not provide the same level of physical protection as a solid plate.
Pros:
- Improved ventilation compared to plate shields.
- May be more difficult to cut through due to the multiple points of contact.
Cons:
- Can be more expensive than plate shields.
- Potentially less effective against thieves using leverage to bend or break the bars.
Cable Shields
Cable shields utilize a network of high-strength steel cables wrapped around the catalytic converter and secured to the vehicle's frame. They aim to make cutting through the converter more difficult and time-consuming.
Pros:
- Difficult to cut through with standard tools.
- Relatively lightweight and easy to install.
Cons:
- May not provide the same level of physical protection as plate or cage shields.
- The cables can potentially be compromised over time due to corrosion or wear.
Alarm Systems
While not strictly a shield, some systems integrate an alarm that triggers when vibrations or movement are detected near the catalytic converter. These systems can alert the owner and potentially scare off thieves.
Pros:
- Provides an audible deterrent.
- Can alert the owner to potential theft attempts.
Cons:
- Requires electrical wiring and integration with the vehicle's electrical system.
- May be prone to false alarms.
- Doesn't physically prevent theft, only aims to deter it.
Installation Considerations
Installing a catalytic converter shield typically involves bolting or riveting the shield to the vehicle's frame. Here's a general overview of the installation process:
- Preparation: Gather the necessary tools, including a jack, jack stands, sockets, wrenches, a drill (if needed for rivets), and safety glasses. Always prioritize safety and use jack stands to support the vehicle before working underneath it.
- Positioning the Shield: Carefully position the shield around the catalytic converter, ensuring it doesn't interfere with any other components of the exhaust system or undercarriage.
- Marking Mounting Points: Use the shield as a template to mark the locations for the mounting bolts or rivets on the vehicle's frame.
- Drilling (If Necessary): If the shield requires drilling new holes, carefully drill pilot holes at the marked locations. Ensure you don't drill into any critical components like fuel lines or brake lines.
- Attaching the Shield: Secure the shield to the frame using the provided bolts or rivets. Tighten the bolts to the manufacturer's specified torque. If using rivets, use a rivet gun to securely fasten them.
- Inspection: Double-check that the shield is securely attached and doesn't interfere with any other components. Ensure all bolts and rivets are properly tightened.
Important Considerations During Installation:
- Heat Shield Clearance: Ensure the shield doesn't contact or interfere with the factory heat shields designed to protect the vehicle from exhaust heat.
- Exhaust System Movement: The exhaust system needs to flex and move during operation. Make sure the shield doesn't restrict this movement, which could cause stress and damage to the exhaust system.
- Corrosion Protection: If drilling into the frame, apply a rust-preventative coating to the exposed metal to prevent corrosion.
- Proper Torque: Use a torque wrench to tighten bolts to the manufacturer's specified torque. Overtightening can damage the threads, while undertightening can cause the bolts to loosen over time.
- Professional Installation: If you're not comfortable performing the installation yourself, consider having a professional mechanic install the shield.
Choosing the Right Shield for Your NV200
Selecting the appropriate catalytic converter shield involves considering several factors:
- Material: Steel shields offer greater strength and durability but can be heavier and more prone to rust. Aluminum shields are lighter and corrosion-resistant but may not be as strong. Stainless steel offers a good balance of strength and corrosion resistance but tends to be more expensive.
- Thickness: A thicker shield provides better protection. Consider the gauge of the metal used in the shield's construction.
- Coverage: Ensure the shield provides adequate coverage of the catalytic converter, protecting it from all angles.
- Ventilation: Adequate ventilation is crucial to prevent heat buildup around the catalytic converter. Look for shields with ventilation holes or a more open design.
- Ease of Installation: Choose a shield that is relatively easy to install, especially if you plan to install it yourself.
- Price: Catalytic converter shields vary in price. Balance the level of protection and features with your budget.
- Reviews and Reputation: Research the manufacturer and read reviews from other NV200 owners to get an idea of the shield's quality and effectiveness.
Beyond Shields: Additional Security Measures
While a catalytic converter shield is a significant deterrent, consider combining it with other security measures for enhanced protection:
- Vehicle Alarm System: Install a comprehensive vehicle alarm system with tilt sensors or vibration sensors that can detect tampering with the vehicle.
- Security Camera: If possible, park your NV200 in a well-lit area covered by a security camera.
- Etching or Marking: Etch your vehicle's VIN number onto the catalytic converter. This makes it more difficult for thieves to sell the converter and can help law enforcement identify stolen parts.
- Welding: Have a professional welder weld rebar or additional metal supports around the catalytic converter to make it even more difficult to remove. Welding near the exhaust system should only be performed by a qualified welder to avoid damaging other vehicle components.
- Catalytic Converter Replacement Insurance: Check with your insurance provider to see if they offer coverage for catalytic converter theft.
Conclusion
Catalytic converter theft is a serious problem, but taking proactive measures can significantly reduce the risk of your Nissan NV200 becoming a target. A catalytic converter shield is a relatively inexpensive and effective way to deter thieves. By understanding the different types of shields available, considering installation considerations, and implementing additional security measures, you can protect your investment and enjoy peace of mind.
Remember that no security measure is foolproof, but making your vehicle a less appealing target can significantly reduce the chances of theft. Consult with a trusted mechanic or security specialist for personalized recommendations tailored to your specific needs and circumstances. Investing in a shield is a small price to pay compared to the cost and inconvenience of replacing a stolen catalytic converter.