Cylinder Head

VTC Actuator, Exhaust Camshaft Sprocket Replacement (cont'd)


Cylinder Head Inspection for Warpage


  1. Install the VTC actuator and exhaust camshaft sprocket.
  1. Apply engine oil to the threads of the VTC actuator mounting bolt and exhaust camshaft mounting bolt, then install them.
  1. Hold the camshaft with an open-end wrench, then tighten the bolts.

Specified torque:

VTC actuator mounting bolt:

113 Nm (11.5 kgf/m, 83 lbf/ft)

Exhaust camshaft sprocket mounting bolt:

72 Nm (7.3 kgf/m, 53 lbf/ft)

  1. Install the cam chain (see page 6-16).

  1. Remove the cylinder head (see page 6-25).
  1. Inspect the camshaft (see page 6-31).
  1. Check the cylinder head for warpage. Measure along the edges, and three ways across the centre.
  • If warpage is less than 0.05 mm (0.002 in.) cylinder head resurfacing is not required.
  • If warpage is between 0.05 mm (0.002 in.) and 0.2 mm (0.008 in.), resurface the cylinder head.
  • Maximum resurface limit is 0.2 mm (0.008 in.) based on a height of 104 mm (4.09 in.).

Cylinder Head Height:

Standard (New):

103.95 – 104.05 mm (4.093 – 4.096 in.)