- It is also important to check the spark plug wire connections for a secure fit
- Secondly, OEM spark plugs contribute to improved fuel efficiency
Have you found the right oil seal for your application? The next step is fitting the oil seal correctly, so that it remains undamaged.
Fluid Types - Various oil seals are able to withstand interactions with oils, fuels, grease, water and more. Knowing what type of fluid the rotary shaft seal will be in constant contact with will ensure the longevity of the seal and surrounding components.
- Selecting the right cylinder gasket is as important as its function. A faulty or worn-out gasket can lead to engine inefficiencies, such as reduced power, increased fuel consumption, and potentially severe damage due to coolant or oil leaks. Regular inspection and timely replacement of the gasket are essential maintenance practices to ensure the longevity and efficient operation of an engine.
- Dust lip: prevents particles from reaching the sealing lip.
× - The defect of fluoro rubber is
Seals perform best when they are lubricated, however, some machines quickly go on dry spells. So, in cases like this, choosing a leather or PTFE seal is the right decision to make as both of them can function with less lubrication than other types of seals.
Oil seal characteristics

Shaft Hardness
a)
Oil Seal Manufacturing: Processes and Considerations
Figure 3: Sealing function of main lip radial load
* KOYO is a registered trademark of JTEKT.
Most conventional oil seals are designed only to withstand very low-pressure applications (about 8 psi or less). If additional internal pressure is present or anticipated, pressure relief is necessary.