Installation

1. CAMSHAFT





1) Camshaft installation
Apply engine oil to cylinder head at camshaft bearing location before installing camshaft. Install camshaft so that rocker arm is close to or in contact with "base circle" of cam lobe.

CAUTION:
- When camshafts are positioned as shown in figure, camshafts need to be rotated at a minimum to align with timing belt during installation.
- Right-hand camshaft need not be rotated when set at position shown in figure.
Left-hand Intake camshaft: Rotate 80° clockwise.
Left-hand exhaust camshaft: Rotate 45° counter-clockwise.

2) Camshaft cap installation





(1) Apply fluid packing sparingly to cap mating surface.

CAUTION: Do not apply fluid packing excessively. Failure to do so may cause excess packing to come out and flow toward oil seal, resulting in oil leaks.

Fluid packing:
THREE BOND 1215 or equivalent





(2) Apply engine oil to cap bearing surface and install cap on camshaft as shown by identification mark.
(3) Gradually tighten cap in at least two stages in the numerical order shown in figure, and then tighten to specified torque.
(4) Similarly, tighten cap on exhaust side. After tightening cap, ensure camshaft rotates only slightly while holding it at "base" circle.





3) Inspect for valve clearance.
Measure valve clearance using thickness gauge.
If necessary, adjust valve clearances.





4) Camshaft oil seal installation
Apply grease to new oil seal lips and press onto front end of camshaft by using ST1 and ST2.

CAUTION: Use a new oil seal.

ST1 499587100 OIL SEAL INSTALLER
ST2 499597000 OIL SEAL GUIDE





5) Rocker cover installation
(1) Install gasket on rocker cover.
Install peripheral gasket and ignition coil gasket.
(2) Apply fluid packing to four front open edges of peripheral gasket.

Fluid packing:
THREE BOND 1215 or equivalent

(3) Install rocker cover on cylinder head. Ensure gasket is properly positioned during installation.

6) Install spark plug cords.
7) Install camshaft position sensor.
8) Similarly, install parts on right-hand side.


2. RELATED PARTS
Install timing belt, camshaft sprockets and related parts.