Illustration 1 | g01041839 |
Thoroughly lubricate the outer surface of the piston and the piston rings with clean engine oil before installation in the cylinder block.
(1) Piston crown assembly
(2) Top piston ring
- When the piston ring is installed in a cylinder liner that has a bore size of
137.16 mm (5.400 inch) , the clearance between the ends of the piston ring is the following value. ...0.55 ± 0.15 mm (0.023 ± 0.006 inch)
Install the top ring with the side marked "UP-1" toward the top of the piston.
(3) Intermediate ring
- When the piston ring is installed in a cylinder liner that has a bore size of
137.16 mm (5.400 inch) , the clearance between the ends of the piston ring is the following value. ...0.83 ± 0.15 mm (0.033 ± 0.006 inch)
Install the intermediate ring with the side marked "UP-2" toward the top of the piston.
(4) Oil control ring
- Width of the groove in a new piston for the oil control ring ...
4.03 ± 0.01 mm (0.159 ± 0.001 inch)
The spring ends of the oil control ring should be assembled 180° from the ring end gap.
- Thickness of the new oil control ring ...
3.98 ± 0.01 mm (0.1567 ± 0.0004 inch)
- Clearance between the groove and the new oil control ring ...
0.05 ± 0.02 mm (0.002 ± 0.001 inch)
- Maximum permissible clearance between the groove and the oil control ring after use ...
0.15 mm (0.006 inch)
- When the oil control ring is installed in a cylinder liner that has a bore size of
137.16 mm (5.400 inch) , the clearance between the ends of the piston ring is the following value. ...0.55 ± 0.15 mm (0.022 ± 0.006 inch)
For each
Note: The rings should be positioned with the gaps of the rings approximately 120° from each other.
(5) Piston skirt
(6) Piston pin
- Diameter of the new piston pin ...
55.000 ± 0.005 mm (2.1654 ± 0.0002 inch) - Length of the piston pin ...
113.20 ± 0.15 mm (4.457 ± 0.006 inch) - Length of the piston pin ...
- Bore in the piston crown bearing for the piston pin ...
55.047 ± 0.008 mm (2.1672 ± 0.0003 inch) - Bore in the piston skirt for the piston pin ...
55.013 ± 0.004 mm (2.1659 ± 0.0002 inch) - Bore in the piston skirt for the piston pin ...
Thoroughly lubricate the piston pin with clean engine oil prior to assembly.