MECHANICAL
01–10–6
PISTON, PISTON RING, PISTON PIN CONSTRUCTION [LF]
E5U011011010N01
• 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.
• 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.
End Of Sie
item Specification
Outer diameter mm {in} 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}
A
B
PISTON SIDE VIEW
OFFSET
OUTER DIAMETER
PISTON UPPER VIEW
INSTALL ARROW
FACING ENGINE
FRONT
ENGINE
FRONT
SIDE
VALVE RISES
E5U110ZT5043
TOP RING SECTIONAL VIEW
EXPANDER
SIDE RAIL
OIL RING SECTIONAL VIEW
SECOND RING SECTIONAL VIEW
E5U110ZT5013
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