Once the belt is in position, reattach the tensioner according to the manufacturer’s specifications. Make sure the belt is taut but not overly tight.
To do this, turn the engine with a socket on the crankshaft pulley bolt until the rotor arm is pointing to the plug contact of the timing cylinder (usually No. 1, check in the car service manual), and the timing marks on or behind the pulley show exactly top dead centre ( TDC ).
- In the intricate world of engineering and machinery, the oil seal plays a pivotal role in ensuring optimal performance and longevity. A specific type, known as the 20 30 7% oil seal, stands out for its unique composition and exceptional functionality. This specialized component is a testament to the continuous evolution of engineering solutions aimed at enhancing efficiency and reliability.
- In conclusion, oil seals are a critical component in maintaining the performance and longevity of machinery and equipment. By providing a reliable barrier between the rotating shaft and the housing, these seals prevent oil leakage and maintain the integrity of the lubrication system. With proper design, installation, and maintenance, oil seals can help ensure the smooth operation of machinery and reduce the risk of costly repairs.
- PTFE Oil Seals – Are a relatively new oil seal, the use of polytetrafluoroethylene means they can withstand dry and unlubricated operations. They have a massive thermal range spanning from -130°C to more than 200°C and a strong resistance to chemicals, they are the future of rotary shaft seals.
Use a flat paint scraper, or the smooth side of an old hacksaw blade, to remove very carefully all traces of carbon and old gasket from both faces.
Oil seal vs. mechanical seal is not always an easy decision. In some cases, one is the obvious choice because you are replacing a worn out seal with the same type. But in other situations, either type would work and the question is which will enhance productivity the most. At Abbey Seals, we have ample experience with a full range of seal types. We are happy to discuss the specifics of your application and advise you on the optimum type of seal for your equipment. The decision between a rotary shaft or oil seal vs. mechanical seal involves many factors, and we are here to help you make the best choice for your specific needs.
Recognizing and avoiding common installation mistakes is key to the longevity and effectiveness of oil seals. Here are some frequent errors to watch for:

Seals are designed to create a tight seal around the shaft by utilising a combination of lip geometry, surface tension, and lubrication. When the shaft rotates, the lip of the oil seal comes into contact with the shaft surface, creating a frictional force that generates heat. This heat helps to soften and conform the elastomeric material of the oil seal to the shape of the shaft, ensuring an effective sealing action.

ERIKS
As type B with dust lip