Piston and Rings
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| Illustration 1 | g03538917 |
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| Item | Qty | Part | Specification Description |
| Install the rod and piston group in the engine with the part number of the forging for the rod assembly to the rear of the engine. The rear of the engine is the flywheel end of the engine. Lubricate the rod and piston group with clean engine oil before you insert the rod and piston group into the block. | |||
| 1 | 1 | 447-5626 Piston Ring | Install the top piston ring with the side marked "UP-1" toward the top of the piston. The blue colored stripe faces to the right of the ring end gap. |
| When the new top piston ring is installed in a cylinder liner bore with bore size of |
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| Thickness is |
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| 2 | 1 | 467-1177 Piston Ring | Install the intermediate piston ring with the side marked "UP-2" toward the top of the piston. The white-colored stripe faces to the right of the piston ring end gap. |
| When the new intermediate piston ring is installed in a cylinder liner bore with bore size of |
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| Width of groove in new piston body assembly for intermediate piston ring is |
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| Thickness is |
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| 3 | 1 | 262-2891 Piston Ring | The oil control piston ring has a spring that is installed with the ring. The gap in the spring should be a distance of 180 degrees from the ring end gap when the oil control piston ring is assembled. The orange colored portion can be to the right or to the left of the ring end gap. |
| When the new oil control piston ring is installed in a cylinder liner bore with bore size of |
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| Width of groove in new piston body assembly for oil control piston ring is |
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| Thickness is |
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| After the piston rings have been installed, rotate the piston rings so that the end gaps are 120 degrees from each other. | |||
| Thoroughly lubricate the entire piston prior to assembly into the cylinder block with clean engine oil. | |||
| 4 | 1 | 524-5566 Piston Pin | Thoroughly lubricate the piston pin with clean engine oil prior to assembly. |
| Outside diameter is |
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| The inside diameter is |
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| Length is |
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