Lycoming: Debut Of Roller Tappets
New roller lifters (cam followers) were announced by Lycoming and Superior for most Lycoming applications. Roller-tipped lifters are used widely in the automotive world to reduce internal friction, but the benefit for aircraft is improved longevity. Both companies said the rollers are in development programs that should last through fall. Lycoming plans to introduce the lifters as part of "phased design improvements" to its engine line.