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Manuals through 2025 now available!

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Valve Spring: Testing and Inspection

STANDARD PROCEDURE - VALVE SPRING TENSION TEST
Clean all carbon deposits from the combustion chambers, valve ports, valve stems, valve stem guides and head.





Use a universal Valve Spring Tester and a torque wrench to test each valve spring for the specified tension value (Fig. 26).
Replace valve springs that are not within specifications.