Timing Belt

• Material Composition: Premium HNBR (Hydrogenated Nitrile Butadiene Rubber), OEM Quality
• Certifications & Standards: ISO 9001, ISO/TS 16949, ISO 9563 (Anti-Static Properties)
• Tooth Profile: Precision pitch and height design for reduced friction and operational noise
• Tensile Reinforcement: 13 High-Tensile Fiberglass Cords
• Mechanical Strength: Ultra-high tensile strength; resistant to tearing, sudden stress shocks, and abrasion
• Operating Temperature Range: Extreme cold/heat resistant (-30°C to +100°C)
• Electrical Properties: Anti-static structure
• Warranty & License: Backed by warranty; manufactured under license and supervision of DAkkS GERMANY
• Applications: Suitable for Peugeot 405, 206 (TU3, TU5), Samand EF7, L90 (K4M), Xantia, and Pride (Part Codes: 114RU17, 104RU17, 134RU25.4, 127RU25.4, 132RU27, 136RU25.4, 107YU22, etc.)

The timing belt is one of the most critical components in internal combustion engines, responsible for precisely synchronizing the movement of the crankshaft and camshaft. This presented timing belt is manufactured from high-grade HNBR material in full compliance with OEM (Original Equipment Manufacturer) standards. Trusted on global automakers' assembly lines, these belts hold international certifications including ISO 9001 and ISO/TS 16949.

Key highlights include a precision-engineered tooth pitch and profile designed specifically to minimize noise and friction. Reinforced with 13 high-tensile fiberglass cords, the belt exhibits exceptional tensile strength, outstanding resistance to tearing and sudden mechanical shocks, and dynamic thermal resistance ranging from -30°C to +100°C. Engineered with an anti-static structure conforming to ISO 9563, this product delivers long service life, high wear resistance, and backed-by-warranty production under the supervision of DAkkS GERMANY.

Main Functions:

• Crankshaft & Camshaft Synchronization: Precisely ties the rotation of the crankshaft (controlling piston stroke) to the camshaft (controlling valve timing).
• Accurate Valve Timing Control: Ensures intake and exhaust valves open and close at exact intervals relative to piston position (intake, compression, power, exhaust phases).
• Spark Timing Synchronization: Helps maintain accurate ignition timing relative to piston and valve positioning, preventing engine knock or retarded timing.
• Rotational Power Transmission: Smoothly transfers rotational force from the crankshaft to the camshaft and auxiliary units like the water pump or oil pump.
• Ensuring Optimal Engine Performance: Facilitates complete fuel combustion, maximum efficiency, reduced emissions, quiet engine operation, and prevents catastrophic piston-to-valve contact in interference engines.

Supplementary Documentation: Guide & Maintenance

1. Installation & Replacement Guidelines:

• Follow Manufacturer Specs: Strictly adhere to the technical manuals provided by the vehicle manufacturer regarding timing marks, bolt torque specs, and tensioning methods.
• Thorough Cleaning: Clean the timing cover, pulleys, tensioners, and idlers thoroughly before installing a new belt. Oil, grease, or dirt drastically reduces belt life.
• Use Dedicated Timing Lock Tools: Always use model-specific timing locking tools to ensure the camshaft and crankshaft remain locked in position.
• Replace Related Components: Always replace tensioner pulleys and idler bearings alongside the timing belt. Replacing the water pump simultaneously is also strongly recommended.
• Proper Belt Tensioning: Over-tensioning damages pulley bearings and shortens belt life, while under-tensioning leads to tooth skipping and engine damage.
• Final Manual Rotation Test: Manually turn the crankshaft a few revolutions before starting the engine to verify smooth rotation and correct alignment.

2. Periodic Inspection:

During routine maintenance, inspect the belt for:

• Cracking (micro or macro cracks across the belt surface or teeth roots).
• Tooth wear or rounding.
• Fraying, cord exposure, or edge damage.
• Contamination from engine oil or coolant leaks.

3. Symptoms of Failure & Replacement Interval:

• Symptoms: Unusual ticking or grinding noise from the timing cover, check engine light illumination, rough idling, hard starting, or loss of power.
• Replacement Schedule: Always adhere to factory replacement intervals (typically every 60,000 to 100,000 km or 4 to 5 years). Age causes material degradation regardless of low mileage.

4. Consequences of Timing Belt Failure:

In interference engines, a broken timing belt causes immediate collision between pistons and valves, resulting in bent valves, damaged cylinder heads, cracked pistons, and severe financial repair costs.

5. Quality Selection:

Using genuine HNBR belts manufactured under strict ISO and DAkkS GERMANY standards eliminates premature snapping hazards and guarantees engine reliability.