Valve spring for Terex TX760B

The valve spring 3174A031 is a component used within the engine cylinder head assembly of the Terex TX760B backhoe loader. It is positioned to provide the necessary tension to the intake and exhaust valves, ensuring they remain seated and sealed against the cylinder head during the combustion cycle. By maintaining this tension, the spring allows the valve train to follow the profile of the camshaft accurately, which prevents valve float and ensures consistent engine operation.

This part is compatible with the Terex TX760B machine, specifically within the Tier 3 engine configuration. It is a mechanical component that facilitates the intake of air-fuel mixtures and the exhaust of combustion gases by controlling the timing of valve closure. Proper seating of these valves is required to maintain the compression levels necessary for efficient engine power output and to meet emission standards. Valve springs serve as the return mechanism for the valve train in internal combustion engines. By exerting constant pressure on the valve stem, they keep the valve closed against the seat until the camshaft lobe forces it open. This action is repeated thousands of times per minute during engine operation, requiring the spring to maintain its elastic force under cyclic loading and thermal stress.