What is the Two-Row Non-Adjustment Valve Method?

[SanElena]

The two-row non-adjustment valve method is a simple and feasible approach to confirm the adjustability of valve clearance. Below is relevant information about automotive valves: 1. Introduction: The function of valves is specifically responsible for introducing air into the engine and expelling exhaust gases after combustion. Structurally, they are divided into intake valves and exhaust valves. The intake valve's role is to draw air into the engine to mix with fuel for combustion, while the exhaust valve's role is to expel the burned exhaust gases and dissipate heat. 2. Composition: Valves consist of a valve head and stem. The valve head operates at very high temperatures (intake valve: 570~670K, exhaust valve: 1050~1200K) and also withstands gas pressure, valve spring forces, and the inertial forces of the transmission components. With poor lubrication and cooling conditions, valves must possess certain strength, stiffness, heat resistance, and wear resistance. Intake valves are typically made of alloy steel, while exhaust valves are made of heat-resistant alloy silicon-chromium steel.