System Specifications

Head gasket surface flatness; 0. 1 mm/general 0.05 mm/200 x 200 (0.0003 in./general) (0.0019 in./7.87 x 7.87)
Intake manifold bolts 18 Nm (13 ft. lbs.)

Cylinder head
Cam bore diameter 25.015-25.040 mm (0.984-0.985 in.)
Camshaft
Lobe lift - intake 8.24999 mm (0.324 in.)
Lobe lift - exhaust 7.80007 mm (0.307 in.)
Runout (I ) a 0.03 mm (0.001 in.)
Thrust clearance 0.09-0.24 mm (0.003-0.009 in.)
Journal diameter 24.96-24.98 mm (0.982-0.983 in.)
Journal-to-bore clearance 0.035-0.080 mm (0.001-0.003 in.)

a No. 3 Journal - Supported by No. 1 and No. 5 journals.





NOTE: The cylinder head bolts are torque-to-yield and must not be reused. New cylinder head bolts must be installed.

NOTE: Lubricate the bolts with clean engine oil prior to installation. Install new cylinder head bolts.

Cylinder head bolts a
Tighten the bolts in the sequence shown in 5 stages:
1. Tighten to 5 Nm (44 inch lbs.).
2. Tighten to 15 Nm (11 ft. lbs.).
3. Tighten to 45 Nm (33 ft. lbs.).
4. Turn 90 degrees.
5. Turn an additional 90 degrees.

Camshafts and bearing caps.
Tighten the bolts in the sequence shown in 3 stages:
Stage 1: Tighten the camshaft bearing cap bolts one at a time until finger tight.
Stage 2: Tighten to 7 Nm (62 inch lbs.).
Stage 3: Tighten to 16 Nm (12 ft. lbs.).





NOTE: Make sure to tighten the nuts in the sequence in 2 stages.

Exhaust Manifold nuts
Tighten the 7 exhaust manifold nuts in the sequence shown.
Stage 1: Tighten to 47 Nm (35 ft. lbs.).
Stage 2: Tighten to 47 Nm (35 ft. lbs.).

Camshaft sprocket bolt 65 Nm (48 ft. lbs.)