PISTON, PISTON RING, PISTON PIN CONSTRUCTION [L8, LF]

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• The pistons are made of aluminum alloy, which withstands heat and is highly conductive.
• The piston skirt is coated with graphite to reduce friction.
• The offset pistons are used to reduce piston-slapping noise.
• To prevent the piston from being reassembled in the wrong direction, the front mark (←) is on the piston.
• Pistons and connecting rods cannot be disassembled because they are shrinkage fit. (Except LF MT)

Piston Specification.

item | Specification
--- | ---
L8 | LF
Outer diameter | mm {in} | 82.965—82.995 {3.2664—3.2675} | 87.465—87.495 {3.4435—3.4435}
Offset quantity | mm {in} | 0.8 {0.04}
Compression height: A | mm {in} | 28.5 {1.122}
Piston height: B | mm {in} | 51.0 {2.0078}

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• The following piston rings have been adopted: Barrel face ring for top ring, taper under cut ring for second ring, two scuff rings and an expander for oil ring.
• The piston pin is made of chrome steel alloy, which has superior rigidity.
• The connecting rod and the piston pin are shrinkage fit, so that it cannot be disassembled. (Except LF MT)

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