Which Point Does the Camry Exhaust Camshaft Align With?
1 Answers
The Camry exhaust camshaft is aligned with the mark on the crankshaft timing pulley, typically requiring the No. 1 cylinder piston to be at the top dead center position. Then, install the camshaft timing pulley and align its mark with the camshaft. For dual camshafts, align both camshaft positions separately. Finally, install the timing belt/chain. Below is an introduction to the engine camshaft: 1. The engine camshaft controls the opening and closing timing of the intake and exhaust valves and the sealing effect of the valves. Through the connection of the timing belt, timing chain, or gears, the camshaft must operate synchronously with the crankshaft. If the camshaft malfunctions, minor issues may include engine noise, insufficient combustion chamber pressure, incomplete exhaust emission, increased fuel consumption, and reduced power. Severe issues may involve piston and valve collision. 2. The engine camshaft controls the opening and closing timing of the exhaust valves and the clearance size of the exhaust valves. After the combustible mixture in the combustion chamber is burned, as the piston moves downward from the cylinder's top dead center, the exhaust camshaft controls the opening of the exhaust valve, allowing the burned exhaust gases in the cylinder to be discharged through the exhaust manifold. The later the exhaust valve closes, the cleaner the exhaust gases in the cylinder are emitted.
