Description

INGCO S-PE-GSP-GX390 Spring(S-PE-GSP-GX390)

product details:

Function:

• Valve Closure: The valve spring’s primary function is to close the intake and exhaust valves against their respective seats after they are opened by the camshaft during the engine cycle. This ensures a tight seal within the combustion chamber:
  • Compression Stroke: A closed intake valve prevents air-fuel mixture from leaking out during compression.
  • Combustion Stroke: Closed valves (intake and exhaust) are essential for containing the high-pressure combustion gasses for efficient power generation.
  • Exhaust Stroke: A closed intake valve prevents fresh air-fuel mixture from entering the cylinder during exhaust gas expulsion.
• Valve Control: The spring maintains tension on the valve stem, allowing the valve to follow the profile of the cam lobes on the camshaft. This precise control ensures the valves open and close at the exact moments required for proper engine operation.

Importance:

• Engine Performance: Healthy valve springs are vital for optimal engine performance. Worn or weak springs can lead to:
  • Improper valve sealing: This can cause loss of compression, reduced engine power, and even engine knocking.
  • Erratic valve timing: In severe cases, weak springs can cause valves to stay slightly open or close incompletely, disrupting the engine cycle and potentially damaging valves or pistons.
• Engine Longevity: Proper valve spring function helps prevent premature wear on valves, valve seats, and other engine components.

Key Characteristics of Valve Springs in a GX390 Engine:

• Material: Valve springs are typically made from high-quality steel designed to withstand the high temperatures, pressures, and constant stress encountered within the engine.
• Tension: The spring is designed with a specific tension level to ensure proper valve closure and control. Using a spring with incorrect tension can lead to the problems mentioned above.
• Two Springs per Engine: A GX390 engine typically uses two valve springs, one for the intake valve and one for the exhaust valve. These springs might have slightly different properties depending on the specific function of the intake and exhaust valves in the engine cycle.