- fluorosilicone rubber is more and more commonly used in the manufacture of seals.
- Iridium spark plugs are the most advanced and expensive type of spark plug. They offer the best performance and longevity, with some models capable of lasting up to 100,000 miles. Iridium spark plugs have a very small electrode, which allows for a more precise spark and improved engine performance. They are recommended for high-performance vehicles and those with turbocharged engines
different types of spark plugs. The hardness of the shaft determines how long the seal will last. A shaft should have a Rockwell hardness of 30 or more. It prevents the seal from getting damaged when it’s exposed to abrasive agents.

The car head gasket, also known as the cylinder head gasket, is a critical sealing component in the engine that plays a pivotal role in maintaining the integrity of the combustion chamber. This gasket is designed to seal the cylinder head to the engine block, preventing the leakage of coolant, oil, and combustion gases. A properly functioning car head gasket is essential for ensuring optimal engine performance, preventing overheating, and maintaining the overall efficiency of the engine.
FKM or FPM, which is in well-known brand Viton™, can withstand higher liquid temperatures of up to 180 ˚C. FKM is highly resistant to strong acids and bases, as well as to synthetic oils and greases. Glycol-based oil and grease, however, can also damage FKM.
For bisphenol-cured VDF/HFP/TFE polymers, calcium hydroxide level should be low and magnesium oxide level should be high to promote adhesion to metal inserts. Thermal black or mineral fillers generally give good adhesion.3 For most adhesive systems, it is necessary to limit postcure temperatures to about 200°C (392°F).3
Standard 3760/3761
Chinese spark plug manufacturers adhere to stringent quality control measures to ensure that their products meet industry standards and specifications. Advanced manufacturing processes, precision engineering, and rigorous testing protocols are employed to produce high-quality spark plugs that deliver reliable performance and durability. Manufacturers prioritize material quality, heat resistance, and electrode design to optimize the spark plug's ignition capabilities and longevity.
Mark the position of the rotor arm by lightly scratching a line on the distributor body. Disconnect the LT lead from the distributor body.
When choosing a type of oil seal, it is important to consider factors such as environment, shaft speed and pressure of your machine, temperature, and the type of materials the seal will interact with during use. These considerations will ensure that you choose a compatible oil seal for your particular machinery and help you select the right color, size, and lip material or sealing element.

crankshaft oil seal.
③ Lip type code