Firstly, read here abouthow the engine valves open & close. The engine valves are just like the human nose. Anautomotive engineuses valves for it’s ‘breathing’ (inhale/exhale) process. The engine’s camshaft opens and closes the valves at a specific interval. The timing of the opening ...
How much power an engine of a given displacement will actually generate depends on many variables, including the design of the cylinder heads and their flow characteristics, the size and number of valves per cylinder, camshaft valve lift, duration and overlap, cam timing, spark timing, the type...
Double VANOS is also applicable to the exhaust camshaft. As a consequence, torque is boosted more and emissions are improved further. While VANOS is generally dependable, age-related issues may need maintenance. The most often seen issue is a rattling in the top valve train component. If the ...