- Remove the piston with connection rod. Refer to Piston, Connecting Rod, and Bearing Removal .
Note: Note installation position of the piston in respect of the connection rod.
- Detach the piston from the connection rod.
Note: Do not damage the bore.
- Remove the retainer (1) from the piston eye.
- Press the piston pin out of the piston.
- Remove the piston rings, using piston ring pliers (1).
Remove oil carbon from the groove with a split piston ring, filed to a wedge-shape.
- Measure the piston ring gap.
| • | Tension the piston ring in the cylinder and measure the gap with a feeler gauge. |
| - | Rectangular compression ring (1): 0.20-0.40 mm (0.007-0.015 in) |
| - | Tapered compression ring (2): 0.40-0.60 mm (0.015-0.023 in) |
| - | Oil scraper ring (3): 0.25-0.75 mm (0.009-0.029 in) |
- Check piston ring vertical play with a feeler gauge (1) in the piston ring groove.
Permissible vertical play:
| • | Rectangular compression ring (1): 0.04-0.08 mm (0.001-0.003 in) |
| • | Tapered compression ring (2): 0.03-0.07 mm (0.001-0.002 in) |
| • | Oil scraper ring (3): 0.03-0.13 mm (0.001-0.005 in) |
