mercury Workshop Repair Guides

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Cylinder Head Assembly > < Piston, Engine|Specifications
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Piston Ring: Specifications

Piston Rings

Width

Top...................................................................................................................................................................... 1.17-1.185 mm (0.0460-0.0466 inch)
2nd.................................................................................................................................................................... 1.197-1.199 mm (0.0471-0.0472 inch)
Oil............................................................................................................................................................................. 2.38-2.45 mm (0.093-0.096 inch)

Ring gap (in bore)

Top............................................................................................................................................................................ 0.16-0.31 mm (0.006-0.012 inch)
2nd............................................................................................................................................................................ 0.33-0.48 mm (0.012-0.018 inch)
oil.................................................................................................................................................................................. 0.2-0.7 mm (0.007-0.027 inch)

Cylinder Head Assembly > < Piston, Engine|Specifications