REMOVAL AND INSTALLATION

Pre-removal Operation

Fuel Line Pressure Reduction (Refer to GROUP 13B - On-vehicle Service, How to Reduce Pressurized Fuel Lines ).
Air Cleaner to Throttle Body Duct Removal (Refer to GROUP 15 - Air Cleaner ).

Post-installation Operation

Air Cleaner to Throttle Body Duct Installation (Refer to GROUP 15 - Air Cleaner ).
Fuel Leak Check.

			Rocker arm and shaft assembly removal <Right bank>
		·	Ignition coils <right bank> (Refer to GROUP 16 - Ignition System, Ignition Coil )
		1.	PCV hose connection
	>>B<<	2.	Rocker cover assembly <right bank>
		3.	Rocker cover gasket
	>>A<<	4.	Exhaust rocker shaft cap
<<A>>	>>A<<	5.	Exhaust rocker arm and shaft assembly
	>>A<<	6.	Inlet rocker shaft cap
	>>A<<	7.	Inlet rocker arm and shaft assembly
			Rocker arm and shaft assembly removal <Left bank>
		·	Ignition coils <left bank> (Refer to GROUP 16 - Ignition System, Ignition Coil )
		8.	Breather hose connection
<<B>>	>>C<<	9.	Fuel high-pressure hose
<<B>>	>>C<<	10.	Fuel high-pressure hose connection
		11.	Fuel pipe
	>>B<<	12.	Rocker cover assembly <left bank>
		13.	Rocker cover gasket
		·	Valve clearance check and adjustment <only at installation> (Refer to )
		·	Rocker arm piston operation check <only at installation> (Refer to )
	>>A<<	14.	Exhaust rocker shaft cap
<<A>>	>>A<<	15.	Exhaust rocker arm and shaft assembly
	>>A<<	16.	Inlet rocker shaft cap
	>>A<<	17.	Inlet rocker arm and shaft assembly

REMOVAL SERVICE POINTS

<<A>> EXHAUST ROCKER ARM AND SHAFT ASSEMBLY REMOVAL

1.Install special tool auto-lash adjuster holder (MD998443) as shown in the illustration so that the lash adjusters will not fall out.
2.

caution

Never disassemble the rocker arm and shaft assembly.

Loosen the rocker arm and shaft assembly mounting bolts, and then remove the rocker arm and shaft assembly with the mounting bolts still attached.

<<B>> FUEL HIGH-PRESSURE HOSE DISCONNECTION

caution

Do not kink the fuel high-pressure hose as it is made of plastics.

Insert a (-) driver or similar tool (width: 6 mm, thickness: 1 mm) into the retainer of the fuel high-pressure hose connector.

caution

When pushing up the retainer of the fuel high-pressure hose connector, pay attention to avoid damage to the retainer.

Turn the (-) driver inserted into the retainer by 90° to push up the retainer and unlock the fuel high-pressure hose connector.

INSTALLATION SERVICE POINTS

>>A<< ROCKER ARM AND SHAFT ASSEMBLY/ROCKER SHAFT CAP INSTALLATION

1.Install the inlet side rocker arm and shaft assembly so that the Φ5.5 mm holes of rocker arm shaft face the cylinder head side.
2.Tighten the inlet side rocker arm shaft mounting bolts to the specified torque.
Tightening torque: 31 ± 3 N·m
3.Check that the identification mark of exhaust side rocker shaft cap is located as shown in the figure.
4.Tighten the exhaust side rocker arm shaft mounting bolts to the specified torque.
Tightening torque: 13 ± 1 N·m

5.Remove special tool auto-lash adjuster holder (MD998443).

>>B<< ROCKER COVER INSTALLATION

Tighten the rocker cover mounting bolts to the specified torque in order of the numbers shown in the illustration.
Tightening torque: 8.3 ± 1.0 N·m

>>C<< FUEL HIGH-PRESSURE HOSE CONNECTION

1.Pull up the retainer of fuel high-pressure hose to unlock before installing.

caution

When pushing in the retainer of the fuel high-pressure hose connector, pay attention to avoid damage to the retainer.
After the installation of the fuel high-pressure hose, slightly pull the fuel high-pressure hose to check that it is connected securely. At this time, also check that there is approximately 1 mm play.

Install the fuel high-pressure hose to the fuel pipe securely and push in the retainer of the fuel high-pressure hose connector to lock the fuel high-pressure hose and fuel pipe.