PISTON, PISTON RING, PISTON PIN CONSTRUCTION[L3 Turbo]

id0110b3100600

•  The piston head has a concave recess to accommodate the turbocharger.
•  A superior quality, heat resistant, highly-conductive aluminum alloy has been adopted for the pistons.
•  Offset pistons have been adopted to reduce piston slapping.
•  The piston has an arrow mark, located on top of the piston, pointing to the front side in order to prevent improper installation.
•  A bushing is installed on the small end of the connecting rod for a full-floating connection of the piston, piston pin, and connecting rod.
•  The construction of the piston skirt is asymmetric on the left and right side to prevent interference between the piston and oil jet.

Piston specification

Item

Specification
Outer diameter
(mm {in})
87.465—87.495 {3.4435—3.4446}
Offset
(mm {in})
0.8 {0.04}
Compression height: A
(mm {in})
32.5{1.2795}
Total height: B
(mm {in})
55.0{2.1654}

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1
Piston side view
2
Offset
3
Outer diameter
4
Piston top view
5
Assembly direction mark
6
Engine front side
7
Valve recess

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1
Oil jet release width