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Stiffer valve springs can help prevent valve float and valve bounce but at the expense of increased friction losses, higher stresses, and more rapid wear in the valvetrain. Various techniques have been used to offset the effect of stiffer springs, such as dual-spring and progressive-sprung valves, roller-tipped tappets, and pneumatic valve ...
A hydraulic tappet, also known as a hydraulic valve lifter or hydraulic lash adjuster, is a device for maintaining zero valve clearance in an internal combustion engine. Conventional solid valve lifters require regular adjusting to maintain a small clearance between the valve and its rocker or cam follower .
The GA engine is a 1.3 to 1.6 L inline-four piston engine from Nissan.It has a cast-iron block and an aluminum head. There are SOHC and DOHC versions, 8, 12, and 16 valve versions, carbureted, single-point, and multi-point injected versions, and versions with variable valve timing (GA16DE).
The poppet valve's previous problems with sealing and wear had been remedied by the use of better materials and the inertia problems with the use of large valves were reduced by using several smaller valves instead, giving increased flow area and reduced mass, and the exhaust valve hot spot by Sodium-cooled valves. Up to that point, the single ...
New York Jets quarterback Aaron Rodgers was benched late in his team's 40-14 loss to the Buffalo Bills despite chasing a milestone 500th career touchdown pass in the contest.. The 41-year-old made ...
KR15DDT e-power engine in a Nissan X-Trail e-power (T33) The KR15DDT VC-Turbo 3 cylinder engine is firstly introduced in the fourth-generation X-Trail. [2] Like the name VC-Turbo suggests, this engine uses a variable compression ratio that allows for high power output and high fuel efficiency at the same time.
The NBA and commissioner Adam Silver were eager to make changes to the All-Star Game after last year's contest wasn't very competitive and finished with a final score of 211-186.
In this episode of McCoy & Van Noy, Gerald McCoy and Kyle Van Noy break down the biggest NFL stories from Week 13. They dive into Azeez Al-Shaair’s hit on Trevor Lawrence that resulted in a ...