B1DB2XK1 - 406D9 ES9J4 ENGINE
DATA CYLINDER HEAD
(A) Mark (R) engraved on the ground cylinder heads .
| dimensions (mm) | nominal | repair |
|---|---|---|
| B | 140 ± 0.05 | 138 ± 0.05 |
Bow : 0.05 mm max. .
IMPERATIVE : it is essential to grind both cylinder heads .
With the valves removed, main bearing cap castings refitted and tightened to the specified torque, check that the camshaft rotates freely .