Imperfections on the shaft
PTFE
In addition to its technical prowess, the F5RTC spark plug is designed with durability in mind. Its robust construction, featuring premium-grade metals, withstands the harsh conditions within an engine, maintaining consistent performance even under extreme loads or prolonged usage. Its resistance to corrosion and wear further contributes to its reliability and long-term value.If the seal is being fitted to original equipment you may have some influence over the shaft and housing bore finish, but if you are replacing a worn seal you still need to take into account the condition of these 2 essential parts.
Lubricants applied between moving and stationary elements of mechanical equipment help to prevent damage. But when the equipment are under high pressure, the lubricants tend to escape, hence the need for oil seals to prevent the clashing of dry parts. Practically all mechanical equipment, including car engines, assembly machines, and PTFE machined parts use these oil seals to prevent harmful interaction that can result in damaged parts.
3. Longer plug life The platinum tip and durable construction of the Spark Plug 794 055A ensure longer plug life, reducing the frequency of maintenance and replacement.