Metzger 0840031 Fuel Injection

Metzger 0840031 Fuel Injection Hose

The Metzger 0840031 is a high‑performance fuel injection hose designed for modern automotive engines that use common rail (CR) systems. It delivers reliable, leak‑free operation even under the demanding conditions of biodiesel and conventional fuels.

Key Characteristics

• Material: Premium flexible polymer reinforced with a durable inner lining to resist abrasion, heat, and chemical degradation.
• Diameter: 8 mm (standard for most CR fuel lines).
• Length: 1.2 m – 2.0 m (available in multiple lengths to fit various engine layouts).
• Pressure Rating: Up to 200 bar, suitable for high‑pressure common rail injectors.
• Temperature Range: -40 °C to +120 °C, ensuring performance from cold starts to hot operation.
• Compatibility: Designed for Citroën and Peugeot models such as the 307, 407 SW, C4 I Hatchback, and many others that use a 2.0 L common rail system.

Design Features

The hose incorporates several engineering solutions to enhance durability:

• Dual‑Layer Construction: An inner layer of high‑grade elastomer provides flexibility, while an outer protective sleeve resists abrasion and UV exposure.
• Reinforced Stitching: Multiple layers of stitching along the hose’s length prevent kinking and maintain structural integrity under pressure.
• Heat‑Resistant Sealant: A silicone sealant at both ends ensures a tight, leak‑free connection to fittings and injectors.
• Anti‑Foaming Additive: The hose’s interior is treated with an anti‑foaming agent that reduces vapor lock risk during rapid fuel flow.

Installation Guidelines

1. Preparation: Clean the injector and fitting surfaces with a solvent to remove oil, dirt, or old sealant. Inspect for damage before installation.
2. Seating the Hose: Slide the hose onto the injector until the end is fully seated. Ensure that no kinks form during this process.
3. Securing Connections: Tighten the fittings to the manufacturer’s specified torque (typically 15 Nm). Use a torque wrench for accuracy.
4. Leak Test: After installation, pressurize the fuel system and check for leaks at all connections. A pressure test of 150 bar is recommended for critical applications.

Maintenance Tips

• Inspect hoses annually for signs of wear such as cracks, bulges, or discoloration.
• Avoid exposing the hose to direct sunlight for extended periods; use protective covers if necessary.
• When replacing a hose, always match the exact length and diameter to maintain system integrity.

Benefits of Choosing Metzger 0840031

• Reliability: The high pressure rating ensures that the hose can handle the demanding fuel pressures of modern CR engines without failure.
• Longevity: Durable materials and reinforced construction extend service life, reducing maintenance costs.
• Fuel Efficiency: A leak‑free connection minimizes fuel loss, contributing to better overall efficiency.
• Versatility: Compatible with both conventional diesel and biodiesel blends (B20/B30), making it suitable for eco‑friendly driving.

Technical Data Sheet

Conclusion

The Metzger 0840031 Fuel Injection Hose stands out as a robust, reliable component for vehicles that rely on common rail fuel injection systems. Its advanced construction, high pressure tolerance, and compatibility with biodiesel make it an excellent choice for both everyday drivers and performance enthusiasts seeking durability and efficiency in their fuel delivery system.