Piston and Rings
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| Illustration 1 | g03113636 |
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| Specification for 371-0821 Piston | |||
| Item | Qty | Part | Specification Description |
| - | - | - | Before assembly of the piston rings, lubricate the ring grooves with clean engine oil. After assembly, lubricate the mating surfaces of the rings to the cylinder liner with clean engine oil. |
| 1 | 1 | 214-6066 Top Piston Ring | Install the top piston ring with the "UP-1" side toward the top of the piston. |
| When the new top piston ring is installed in a cylinder liner with a bore size of |
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| Thickness of new top piston ring is |
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| 2 | 1 | 144-5695 Intermediate Piston Ring | Install the intermediate piston ring with the "UP-2" side toward the top of the piston. |
| When the new intermediate piston ring is installed in a cylinder liner with a bore size of |
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| Thickness intermediate piston ring is |
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| 3 | 1 | 223-6361 Oil Control Piston Ring | The ends of the oil control piston ring should be a distance of 180 degrees from the ring end gap when the oil control piston ring is assembled. The white-colored portion of the piston ring must be visible at the ring end gap. |
| Width of groove in new piston for the oil control piston ring is |
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| Thickness oil Control piston ring is |
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| When the new oil control piston ring is installed in a cylinder liner with a bore size of |
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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. | |||
| 4 | - | - | Bore diameter for piston pin is |
| 5 | 1 | 263-8955 Piston Pin | Before assembly, lubricate the piston pin, the piston pin bore, the connecting rod eye, and the connecting rod pin bearing with clean engine oil. |
| Outside diameter is |
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| Length is |
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| 6 | 2 | 253-1238 Pin Retainer | Assemble the pin retainer with the gap towards the top of the piston.
Thickness is |
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