21. The 1750 TBi gasoline and 16V Multijet diesel engines feature hydraulic tappets with roller rocker arms. 22. The two-stage valve-lift function is performed by electro-hydraulically operated switchable tappets . 23. The engines all employ hydraulic tappets which operate in aluminum guides that are machined into the crankcase. 24. The design uses hydraulic tappets and incorporates the provisions for a hydraulically controlled propeller installation as well. 25. Compared with its M10 predecessor, the M40 uses a belt-driven camshaft, and hydraulic tappets . 26. Lifters or " tappets " are located in the engine block between the camshaft and pushrods. 27. One of the first notable uses in this way was for hydraulic tappets in camshaft and valve actuation. 28. After approaching Bill Frick of Frick-Tappet Racing, if a Cadillac engine would fit the SS100. 29. Every cylinder head has four overhead valves, which are activated by tappets , pushrods and rocker arms. 30. It is relatively easy to use roller tappets in conventional valvetrains, although it does add considerable moving mass.
