Camshaft Variable Valve Timing
Variable Timing Camshaft The advantage of a double overhead cam engine is that it can accommodate more than two valves per cylinder. More than two valve per cylinder allows the exhaust and intake gases to flow more freely because of the increased number of openings, inturn improving engine power and economy. A pushrod style of valvetrain configuration the camshaft is housed in the engine block, instead of the cylinder head. The camshaft utilizes lobe followers or lifters that connect to the rocker arms using a push rod. This system is not as efficient because of the increased weight of the system which increases valve springs load, slowing the engine down. Overhead camshaft engines are more efficient and can produce more power. Camshaft
- A camshaft is driven by the crankshaft via timing chain or belt. The timing belt or chain needs to be replaced per manufacturer's recommended intervals because they can wear out and fail without warning which will stall the engine.
- Camshaft followers or lifters have the capability to automatically adjust themselves utilizing motor oil pressure. To maintain proper operation service the engine oil regularly. Visit - Engine oil change