Cylinder Head Assembly: Specifications

Cylinder Head





CAUTION: Make sure that new cylinder head bolts are installed.

CAUTION: Take extra care not to damage the mating faces.

NOTE: The cylinder head tightening process is carried out once to 45 Nm, then the bolts are loosened and the final torque and angle applied.

Tighten the cylinder head bolts in the sequence shown.
Torque: 45 Nm

Check the cylinder head bolt torque in the sequence shown.
Torque: 45 Nm

Tighten the cylinder head bolts in the sequence shown.
Torque: 90°

Tighten the cylinder head bolts in the sequence shown.
Torque: 180°

Maximum permissible cylinder head warp:
Over head length 0.05 mm (0.00196 in)
Over head width 0.03 mm (0.00118 in)
Cylinder head height 149.4 mm ° 0.15 mm (5.882 in ° 0.0059 in)
Maximum permissible amount to be removed during skimming 0.3 mm (0.0118 in)

Intake manifold








The intake manifold attaches to the cylinder head with 6 bolts and the oil pan with 2 bolts.
Intake manifold bolts 16 Nm (12 lb-ft)
Lower inlet manifold bolts 10 Nm (7 lb-ft)

Camshaft:
Number of bearings 7 per camshaft

Tappets+:
Inlet Hydraulic
Exhaust+ graded

+ There are 50 different thicknesses of graded tappet available ranging from 2.950 mm to 3.685 mm (0.116 in to 0.145 in) rising in increments of 0.015 mm (0.0005 in)

Camshaft drive sprocket bolts
Exhaust 75 Nm + 90° (55 lb-ft + 90°)
Inlet 110 Nm (81 lb-ft)

Exhaust Manifold
Evenly and progressively, tighten the bolts in the sequence shown.
Torque: 24 Nm