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What are possible reasons for abnormal sound of a timing chain?

08-14,2024

Possible reasons for abnormal sound of a timing chain:

Insufficient lubrication: If the lubricating oil applied to the timing chain is insufficient, it will cause an increase in chain friction and result in abnormal noise.

Chain wear: The timing chain wears over time during use of the vehicle, and consequently the chain length changes, leading to looseness and abnormal noise.

Tensioner failure: A failure of the tensioner of the timing chain can cause the chain to become too loose or too tight, which in turn generates noise.

Chain wheel wear: If the chain wheel working in conjunction with the timing chain is heavily worn, it can cause abnormal noise as well.

Installation issues: Problems associated with the timing chain or tensioner during installation, such as improper positioning, may cause abnormal noise.

Impact of foreign objects: If foreign objects enter the working area of the timing chain, they may cause the chain to collide and result in abnormal noise.

vika timing chain kit

Advantages of vika timing chain kit:

STO tensioner:

The enclosure of STO tensioner is made of HT250 cast iron, and its strength level is 22 Mpa higher than that of die cast aluminum (228 Mpa). The material is highly tolerant to deformation. Its Brinell hardness is higher than that of die cast aluminum (74.1) by 134.9. The STO tensioner enclosure product provides better performance than other enclosure brands in terms of structural rigidity, strength, wear resistance, and heat resistance;

The outer diameter of the plunger has been increased from 12.7 mm to 14.46 mm, which results in larger contact area between the tensioner and the guide rail, improved stability, and reduced vibration and noise;

The plunger spring has been strengthened with a spring diameter of 1.49 mm, leading to higher fatigue resistance and structural rigidity compared with original plunger springs;

The pressure relief valve is made of PA6620Cr material, which features higher hardness, higher structural rigidity, and stronger wear resistance. Besides, the pressure relief valve port made of PA6620Cr material is smaller. It ensures constant damping in the high-pressure oil chamber during operation of the tensioner when the engine is in idle or high RPM operation status, thus improving product performance.

Chain: BorgWarner's 3rd generation chain is adopted for the vika timing chain kit, which improves the tensile strength and wear resistance of the chain.

Guide rail: The longer 3rd generation guide rail is used for the vika timing chain kit. The chain and the gear are matched more precisely as the guide rail can press the chain tightly.