PIER 24-88680 REC24-88680

Function and technical context

This spring is a critical component of the ignition and valve control system on small and medium displacement Mercury, Mariner and MerCruiser engines. It works as an elastic recovery element in cam mechanisms, valve linkages or drive systems, guaranteeing precision in the opening and closing times of engine valves. A worn or broken spring causes loss of compression, difficult starting, irregular operation and, in extreme cases, water entering the combustion chamber, compromising the tightness and useful life of the engine.

When to replace this part?

The springs may show symptoms of fatigue after prolonged operating cycles, especially in engines subjected to high revolutions or irregular maintenance. It is advisable to inspect the condition of the dock at each seasonal inspection, particularly before starting spring-summer navigation. If you detect loss of elasticity, visible cracks, discoloration or changes in starting behavior, preventative replacement prevents unexpected on-water breakdowns and costly repairs of related components.

Compatible Mercury Mariner Engines

Equivalent manufacturer part numbers