What is the Method to Distinguish Between Intake and Exhaust Camshafts?

[HeidiAnn]

The methods to distinguish between intake and exhaust camshafts are: 1. By observing the screw positions and belt positions on the camshaft, the intake camshaft is equipped with a camshaft position sensor at the front or rear, is longer in length, and has a signal disc at the tail; 2. The intake and exhaust camshafts are marked with letters on the outside, where 'i' stands for intake and 'e' stands for exhaust. Camshaft positions are categorized into: 1. Underhead type: The camshaft of the valve train is located inside the crankcase; 2. Midhead type: The camshaft of the valve train is located in the upper part of the engine block; 3. Overhead type: The camshaft of the valve train is located on the cylinder head. Conditions that can damage the camshaft include: 1. Poor lubrication; 2. Insufficient oil supply pressure from the oil pump; 3. Blockage of the lubrication oil passage, preventing oil from reaching the camshaft; 4. Inability of lubricating oil to enter the camshaft clearance, leading to abnormal wear of the camshaft.