

7mm spark plug wire. This means that 7mm spark plug wires can withstand the harsh conditions of the engine bay and continue to function effectively for thousands of miles.
A: with minor lip
In conclusion, the piston oil seal is a critical component in an internal combustion engine. It plays a vital role in preventing oil leakage, reducing friction, and ensuring efficient engine operation. Regular inspection and maintenance of the piston oil seal are essential for maintaining the performance and longevity of the engine.
What are Oil Seals and how should they be ordered?
Rotary Wheel Of Auto Parts

Before fitting the oil seal, it is essential to check that the oil seal, shaft and bore are clean and undamaged. The surfaces the oil seal will come into contact with must be free of sharp points or burrs. The sealing lip is fragile, so even minimal damage can cause a leak. It is also important that the shaft and bore are correctly finished.
5 Types of Oil Seals
Additionally, lubricants can be used on both sides of the oil seal to reduce friction and enhance sealing performance. The sealing process is crucial for preventing contaminants from entering machinery or equipment while keeping essential fluids contained within.