Cylinder Head: Valves
Measure valve stem diameter and margin. Replace valve if measurements are not within specification. See VALVES & VALVE SPRINGS table under ENGINE SPECIFICATIONS.
OVERSIZED VALVE SEAT SPECIFICATIONS (1.5L)
| SizeMark | Seat SizeIn. (mm) | Cyl. Head BoreIn. (mm) | Seat HeightIn. (mm) | ||
|---|---|---|---|---|---|
| Intake | |||||
| Primary | |||||
| 30 | .012 (.30) | 1.079-1.080 (27.42-27.44) | .276-.283 (7.00-7.19) | ||
| 60 | .024 (.60) | 1.091-1.092 (27.72-27.74) | .287-.295 (7.29-7.49) | ||
| Secondary | |||||
| 30 | .012 (.30) | 1.276-1.277 (32.42-32.44) | .276-.283 (7.01-7.19) | ||
| 60 | .024 (.60) | 1.288-1.289 (32.72-32.74) | .287-.295 (7.29-7.49) | ||
| Exhaust | |||||
| 30 | .012 (.30) | 1.394-1.395 (35.42-35.44) | .291-.299 (7.39-7.59) | ||
| 60 | .024 (.60) | 1.406-1.407 (35.72-35.74) | .303-.311 (35.72-35.74) | ||
OVERSIZED VALVE SEAT SPECIFICATIONS (1.8L)
| Size Mark | Seat Size In. (mm) | Cyl. Head Bore In. (mm) | Seat Height In. (mm) | |
|---|---|---|---|---|
| Intake | ||||
| 30 | .012 (.30) | 1.390-1.391 (35.31-35.33) | .311-.319 (7.90-8.10) | |
| 60 | .024 (.60) | 1.402-1.403 (35.60-35.64) | .323-.331 (8.20-8.40) | |
| Exhaust | ||||
| 30 | .012 (.30) | 1.311-1.312 (32.30-33.32) | .311-.319 (7.90-8.10) | |
| 60 | .024 (.60) | 1.323-1.324 (33.60-33.63) | .323-.331 (8.20-8.40) | |