Cylinder Head Assembly: Specifications

Cylinder Head




Tighten the new RH cylinder head bolts in 4 stages in the sequence shown.
Stage 1: Tighten to 25 Nm (18 lb-ft).
Stage 2: Tighten to 40 Nm (30 lb-ft).
Stage 3: Tighten an additional 90 degrees.
Stage 4: Tighten an additional 90 degrees.







Tighten the new LH cylinder head bolts in 4 stages in the sequence shown.
Stage 1: Tighten to 25 Nm (18 lb-ft).
Stage 2: Tighten to 40 Nm (30 lb-ft).
Stage 3: Tighten an additional 90 degrees.
Stage 4: Tighten an additional 90 degrees.







Bolt Re-usability

NOTE: The cylinder head bolts must be discarded and new bolts installed. They are a tighten-to-yield design and cannot be reused.


Surface Variation -- Head-to-Block, Head-to-Manifolds and Surface Variation -- Warpage

















a Time required for the plunger to leak down 1.6 mm of travel with 222 N force and leakdown fluid in the lash adjuster.

b Before Grafal coating.


Camshaft Bearing Cap




Camshaft - LH
Tighten the bolts in the sequence shown in 2 stages.
Stage 1: Tighten to 6 Nm (53 lb-in).
Stage 2: Tighten an additional 45 degrees.











Camshaft - RH
Tighten the bolts in the sequence shown in 2 stages.
Stage 1: Tighten to 6 Nm (53 lb-in).
Stage 2: Tighten an additional 45 degrees.








Intake Manifold Specifications

Exhaust Manifold Specifications