15 - Engine
06 - Cylinder Head
00 - General
15 - 44
9813/8300-1
15 - 44
Technical Data
Table 70. Cylinder Head Data
Cylinder head distortion (maximum permissible)
(1)
- End to end
0.05mm
- Side to side
0.03mm
Valve recess depth
- Inlet
0.85mm
- Exhaust
0.85mm
Valve seat angle
- Inlet
120(inclusive)
- Exhaust
90(inclusive)
Cylinder head bolts tourque
(2)
- First stage
40
- Second stage
75
- Third stage
Repeat75
- Fourth stage
Torque angle + 90
- Final stage
Torque angle + 180
Surface finish for cylinder head joint
Rz < 15 Rmax < 20
Permissible wave profile
wt < 10m 2.5 distance
(1) The block to cylinder head surface may be skimmed and restored using the oversize gaskets (0.25mm
and 0.5mm).
(2) Torque information MUST be used in conjunction with the recommended procedures contained in this
manual. Failure to use the appropriate and correct remove, install, disassemble and assemble procedure may
result in an engine failure in service. Refer also to the procedures for the correct bolt tightening sequence.
