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The first engine to feature hydraulic lifters was the 1930 Cadillac V16 (Model 452). Hydraulic lifters were nearly universal on cars designed in the 1980s, but some newer cars have reverted to bucket-and-shim mechanical lifters. Although these do not run as quietly and are not maintenance-free, they are cheaper.
Despite the criticism, NASCAR implemented the model full-time in 2008, and overall brought dramatic safety improvements and reduced costs of car maintenance. [21] Despite the overall safety improvements, one point of contention was that the rear wing increased the severity of on-track accidents by causing cars to be more prone to flipping over ...
In an internal combustion engine, a tappet (also called a 'valve lifter' or 'cam follower') [3] [4] [5] is the component which converts the rotation of the camshaft into vertical motion to open and close an intake or exhaust valve. The principal types of tappets used in automotive engines are solid, hydraulic, and roller. [6] [7]
A young dog is making a fresh start ahead of the new year.. Armando — a 4-year-old Labrador retriever mix — has found his forever home after being abandoned with a note in Arizona earlier this ...
A gun-toting female teenage student at a Christian school in Madison, Wis., shot dead another teen pupil and a teacher there Monday morning, according to police and the AP.
Front bodywork repair corrected; scratches and imperfections repainted; headlamps and indicator lamps correctly refitted. Notes: Seller threw in some replacement parts in the deal. Restored car taken to Silverstone Circuit for a hot lap challenge: Mike did a time of 1:12.4, while Edd did 1:15.
Zhuric Phelps and Pharrel Payne each scored 16 points Saturday to lead No. 17 Texas A&M past No. 11 Purdue 70-66 in the first of two games at the Indy Classic. The Aggies (9-2) have won five straight.
GM's Active Fuel Management [2] technology used a solenoid to deactivate the lifters on selected cylinders of a pushrod V-layout engine. GM used the Active Fuel Management technology on a range of engines including with the GM Small Block Gen IV engine family, first-generation GM EcoTec3 engine family, second-generation GM High-Feature V6 DOHC ...