S 420 (140.043) V8-4.2L (119.981) (1996)
Valve: Service and Repair
Checking and Machining Valves
Preparation
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Cylinder head removed. See: Service and Repair/Procedures
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Valve springs removed.
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Valves removed
Overview
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Clean, inspect valves visually.
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Inspect valve stem for runout (max. 0.03 mm).
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Inspect valve seat for runout (max. 0.05 mm).
Refinish as required.
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Inspect dimensions and angles, refer to tables below.
Valve Dimension Tables
Part 1 Of 3