For 1990-2009 cars only
- Remove the piston with connection rod. Refer to Piston, Connecting Rod, and Bearing Removal.
- Detach the piston from the connection rod.
- Remove the piston rings using piston ring pliers (1).
- Measure the piston ring gap.
- Check piston ring vertical play with a feeler gage (1) in the piston ring groove.
Note: Note installation position of the piston in respect of the connection rod.
| • | Remove the retainer (1) from the piston eye. |
| • | Do not damage the bore. |
| • | Press the piston pin out of the piston. |
Remove oil carbon from the groove with a split piston ring, filed to a wedge-shape.
| • | Tension the piston ring in the cylinder and measure the gap with a feeler gage. |
| • | Permissible ring gap: |
| - | Rectangular compression ring (1): 0.20-0.40 mm (0.0079-0.0157 in) |
| - | Tapered compression ring (2): 0.40-0.60 mm (0.0157-0.0236 in) |
| - | Oil scraper ring (3): 0.25-0.75 mm (0.0098-0.0295 in) |
Permissible vertical play:
| • | Rectangular compression ring (1): 0.04-0.08 mm (0.0016-0.0031 in) |
| • | Tapered compression ring (2): 0.03-0.07 mm (0.0012-0.0028 in) |
| • | Oil scraper ring (3): 0.03-0.13 mm (0.0012-0.0051 in) |
