Cylinder Head (I)

CYLINDER HEAD (I)
1. Disassemble in the order shown in the figure, referring to Disassembly Note.
2. Assemble in the reverse order of disassembly, referring to Assembly Note.

Cylinder Head (I):

Disassembly Note





Camshaft pulley
1. Hold the camshaft by using a wrench on the cast hexagon as shown, and loosen the camshaft pulley lock bolt.
2. Remove the camshaft pulley.





Camshaft cap
1. Loosen the front camshaft cap bolts in five or six steps in the order shown.
2. Remove the front camshaft cap bolts and the front camshaft cap.





3. Loosen the camshaft cap bolts in five or six steps in the order shown.
4. Remove the camshaft cap bolts and camshaft caps.

Camshaft, timing chain, and chain adjuster
Before removing the camshaft, timing chain, and chain adjuster, inspect the following.
1) Camshaft end play.
2) Camshaft journal oil clearance.





Cylinder head
1. Loosen the cylinder head bolts in two or three steps in the order shown.
2. Remove the cylinder head.





Assembly Note
Cylinder head
1. Before installation, measure the length of each bolt. Replace any that exceed the maximum length.
2. Install the bolts and tighten them in two or three steps in the order shown.

Tightening torque:
17.2-22.0 N-m (1.75-2.25 kgf-m, 12.7-16.2 ft-lbf)





3. Put a paint mark on each bolt head.
4. Using the marks as a reference, tighten the bolts by turning each 85°-95° in the sequence shown.
5. Further tighten each bolt by turning another 85°-95°.





Camshaft, timing chain, and chain adjuster
1. Apply clean engine oil to the camshaft journals, camshaft lobes, and camshaft gears.
2. Install the camshafts onto the cylinder head, aligning marks on the camshaft gear and the timing chain.





Camshaft cap
1. Apply silicone sealant to the shaded areas shown in the figure.

Thickness: [diameter] 1 mm (0.04 in)





2. Install the camshaft caps to the positions from which they were removed.
3. Hand tighten the camshaft cap bolts marked 5), 7), 2) and 4).
4. Tighten the camshaft cap bolts in five or six steps in the order shown.

Tightening torque:
11.3-14.2 N-m (115-145 kgf-cm, 99.9-125 in-lbf)





5. Apply clean engine oil to the lip of the new camshaft oil seal.
6. Push the oil seal slightly in by hand.
7. Tap the camshaft oil seal in evenly by using a pipe.

Protrusion
IN: 0-0.4 mm (0-0.01 in)
EX: 1.0-1.4 mm (0.04-0.05 in)

Note
^ Oil seal outer diameter: 48.0 mm (1.89 in)
^ Oil seal inner diameter: 34.2 mm (1.35 in)





Seal cap
1. Apply silicone sealant to the seal cap as shown.

Thickness: [diameter] 3-4 mm (0.12-0.15 in)

2. Install the seal cap.





Camshaft pulley
1. Install the camshaft pulley so that the "Z" mark aligns with the knock pin.





2. Hold the camshaft by using a wrench on the cast hexagon, and tighten the lock bolt.

Tightening torque:
50-60 N-m (5.0-6.2 kgf-m, 37-44 ft-lbf)