S 420 (140.043) V8-4.2L (119.971) (1994)
Piston Ring: Service and Repair
Preparation
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Remove pistons. See: Piston/Service and Repair
Overview
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Measure end clearance of piston rings.
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Remove/Install piston rings with pliers (10) special tool 000 589 51 36 00.
NOTE:
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Pay attention to installation position, "Top" faces up.
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Hooked spring (8) in oil scraper ring (3) is installed offset 180° to joint (arrow).