Piston Ring Side Clearance
NOTE:
Make sure the piston ring grooves are clean and free of nicks and burrs.
- Measure the ring side clearance as shown, make sure the feeler gauge (1) fits snugly between the ring land and the ring. Replace any ring not within specification.
- Rotate the ring around the piston, the ring must rotate in the groove without binding.
PISTON RING SPECIFICATION CHART
| Piston Ring Position | Piston Ring Side Clearance | Maximum Clearance |
|---|---|---|
| Upper Ring | ||
| Metric | 0.04 - 0.09 mm | 0.11 mm |
| Standard | 0.001 - 0.003 in. | 0.004 in. |
| Intermediate Ring | ||
| Metric | 0.04 - 0.08 mm | 0.10 mm |
| Standard | 0.001 - 0.003 in. | 0.004 in. |
| Piston Ring Position | Piston Ring End Gap | Wear Limit |
| Upper Ring | ||
| Metric | 0.40 - 0.55 mm | 0.43 mm |
| Standard | 0.015 - 0.021 in. | 0.017 in. |
| Intermediate Ring | ||
| Metric | 0.24 - 0.51 mm | 0.74 mm |
| Standard | 0.009 - 0.020 in. | 0.029 in. |
| Oil Control Ring (Steel Rail) | ||
| Metric | 0.015 - 0.66 mm | 0.76 mm |
| Standard | 0.005 - 0.025 in. | 0.030 in. |