PISTON, PISTON RING, PISTON PIN CONSTRUCTION[L3]
id0110a4100600
• The pistons are made of aluminium 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.
Piston Specification.
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ITEM
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Outer diameter
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mm {in}
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87.465—87.495 {3.4436—3.4436}
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Offset quantity
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mm {in}
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0.8 {0.031}
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Compression height: A
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mm {in}
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28.5 {1.12}
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Piston height: B
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mm {in}
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51.0 {2.01}
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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.
