Should the timing mark on the 474 engine camshaft align with e or i?

[AveryRose]

474 engine camshaft timing mark aligns with e. The 474 engine camshaft pulley has two grooves on its inner diameter, which fit over a small protruding tab on the camshaft. Generally, factory-set vehicles have the e point on the camshaft pulley inner diameter engaged with the camshaft, meaning the timing corresponds to the e point. The 474 engine camshaft has two timing marks: e and i. The e mark indicates the fourth cylinder, while the i mark indicates the first cylinder. There are corresponding marks on the valve cover, and the camshaft has a pin with notches for both e and i positions. An engine is a machine that converts other forms of energy into mechanical energy, including internal combustion engines (such as gasoline engines), external combustion engines (such as Stirling engines, steam engines), and electric motors.