PISTON, PISTON RING, PISTON PIN CONSTRUCTION [MZR 2.0 DISI i-stop]
id011037100600
• The pistons are made of aluminium alloy, which withstands heat and is highly conductive.
• 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.
• The piston has valve recesses on the intake side.
• Pistons and connecting rods cannot be disassembled because they are shrinkage fit.
• The piston skirt is coated with graphite to reduce friction.
Piston specification
Item
|
Specification
|
Outer diameter
|
(mm {in})
|
87.465—87.495 {3.4436—3.4446}
|
Offset
|
(mm {in})
|
0.8 {0.03}
|
Compression height: A
|
(mm {in})
|
28.5{1.12}
|
Total height: B
|
(mm {in})
|
51.6{2.03}
|
• The following piston rings have been adopted: Barrel face ring for the top ring, a taper under cut ring for the second ring, two scuff rings and an expander for the oil ring.
• The piston pin is made of chrome steel alloy, which has superior rigidity.