- Replacing a worn-out or damaged spark plug valve cover gasket is a relatively straightforward task for experienced mechanics. It involves removing the valve cover, cleaning the mating surfaces, and installing a new gasket. Regular maintenance checks and timely replacements can help avoid potential complications and prolong the life of your vehicle's engine.
- Another significant benefit of the L7TC Spark Plug is its environmental friendliness
l7tc spark plug. By improving fuel efficiency and reducing emissions, this innovative plug helps to mitigate the impact of transportation on the environment. As concerns about climate change continue to grow, the L7TC Spark Plug represents a promising solution for the future of sustainable transportation.
Oil Seal Buying Guide
Selecting Quality Gaskets and Spark Plugs
Oil seals close spaces between fixed and moving parts and protect all kinds of ball and roller bearings. They keep rotating shafts and bearings from pollution and corrosive materials, and also prevent lubricants, oils, and liquids from leakage. An oil seal can have a single lip, double lip and even triple lip, so single lip seal is one lip to seal around the shaft, double lip seal is two lips sealing around this, and triple lip seals have three lips to seal.
Minor lip The minor lip prevents the entry of dust and contaminants from outside.
Lubricant can be retained in the space between the main lip and the minor lip.


The performance of these seals depends to a large extent on a suitable unit load being maintained at the seal-shaft interface. These seals withstand a pressure of 15PSI and their working depends on parameters like shaft diameter, shaft speed, working temperature, service conditions, etc
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Common materials used in oil seals include nitrile rubber, fluorine rubber, silicone rubber, acrylic rubber, polyurethane, polytetrafluoroethylene, etc. When selecting the material of the oil seal, the compatibility of the material with the working medium, the adaptability to the working temperature range and the ability of the lip to follow the rotating shaft at high speed must be considered. When the oil seal is working, the temperature of its lip is higher than the working medium temperature by 20~50°C. Attention should be paid when selecting the oil seal material. The working range of the oil seal is related to the material used for the oil seal: the material is nitrile rubber (-40~120°C), Aggreko rubber (ACM) -30~180°C, fluorine rubber (FPM) -25~300°C.
What Is an Oil Seal, and What Are Its Elements?
• Hydrogenated nitrile rubber
When installed, the oil seal’s flexible lip is placed against the rotating shaft, and the casing is pushed into the housing for support. It is crucial that the sealing lip is lubricated to avoid overheating caused by friction.
Figure 4 shows the features of a JTEKT oil seal.