REMOVAL AND INSTALLATION

Pre-removal Operation

Rocker Cover Assembly Removal (Refer to ).
Vacuum Pump Assembly Removal (Refer to ).
Supply Pump Assembly Removal (Refer to GROUP 13D - Fuel Injection Pump ).

Post-installation Operation

Valve Clearance Check (Refer to ).
Supply Pump Assembly Installation (Refer to GROUP 13D - Fuel Injection Pump ).
Vacuum Pump Assembly Installation (Refer to ).
Rocker Cover Assembly Installation (Refer to ).

			Camshaft removal steps (Inlet side)
<<A>>		1.	Inlet oil pipe assembly
		2.	O-ring
<<A>>	>>B<<	3.	Camshaft bearing left cap (inlet side)
<<A>>	>>B<<	4.	Camshaft bearing front cap (inlet side)
<<A>>	>>B<<	5.	Camshaft bearing rear cap
		6.	Inlet camshaft assembly
			Camshaft removal steps (Exhaust side)
		·	Valve timing chain (Refer to )
<<B>>	>>A<<	5.	Camshaft bearing rear cap
<<B>>	>>A<<	7.	Camshaft bearing right A cap (exhaust side)
<<B>>	>>A<<	8.	Camshaft bearing right B cap (exhaust side)
<<B>>	>>A<<	9.	Camshaft bearing front cap (exhaust side)
		10.	Coupling
		11.	Exhaust camshaft assembly

REMOVAL SERVICE POINTS

<<A>> INLET OIL PIPE ASSEMBLY/CAMSHAFT BEARING LEFT CAP/CAMSHAFT BEARING FRONT CAP/CAMSHAFT BEARING REAR CAP REMOVAL (INLET SIDE)

caution

When removing the inlet oil pipe assembly, loosen the mounting bolt while holding the inlet oil pipe assembly to prevent the pipe from being bent.
When the camshaft bearing cap mounting bolts are loosened at once, the mounting bolts jump out by the spring force and the threads are damaged. Always loosen the mounting bolts in four or five steps.

Loosen the camshaft bearing cap mounting bolts in the order of number shown in the figure in four or five steps, and remove the camshaft bearing caps.

<<B>> CAMSHAFT BEARING REAR CAP/CAMSHAFT BEARING RIGHT A CAP/CAMSHAFT BEARING RIGHT B CAP/CAMSHAFT BEARING FRONT CAP REMOVAL (EXHAUST SIDE)

caution

When the camshaft bearing cap mounting bolts are loosened at once, the mounting bolts jump out by the spring force and the threads are damaged. Always loosen the mounting bolts in four or five steps.

Loosen the camshaft bearing cap mounting bolts in the order of number shown in the figure in four or five steps, and remove the camshaft bearing caps.

INSTALLATION SERVICE POINTS

>>A<< CAMSHAFT BEARING FRONT CAP/CAMSHAFT BEARING RIGHT B CAP/CAMSHAFT BEARING RIGHT A CAP/CAMSHAFT BEARING REAR CAP INSTALLATION (EXHAUST SIDE)

1.Install the camshaft bearing caps to the cylinder head.

note

Because the camshaft bearing thrust cap and camshaft bearing cap are the same in shape, check the bearing cap number and additionally its symbol to identify the inlet and exhaust sides for correct installation.

2.Tighten each camshaft bearing cap mounting bolt to the specified torque in the order of number shown in the figure in two or three steps.

Tightening torque:

M6: 11 ± 1 N·m
M8: 20 ± 1 N·m

>>B<< CAMSHAFT BEARING REAR CAP/CAMSHAFT BEARING FRONT CAP/CAMSHAFT BEARING LEFT CAP INSTALLATION (INLET SIDE)

1.Completely remove the sealant adhered to camshaft bearing rear cap and the cylinder head installation side of the camshaft bearing rear cap, and degrease them with the volatile degreasing agent.

caution

Remove the excessive sealant at the supply pump assembly mounting hole and the vacuum pump assembly mounting hole using a rag or the like.
After the installation, until a sufficient period of time (one hour or more) elapses, do not apply the engine oil or water to the sealant application area or start the engine.

Apply the sealant with a diameter of 2 mm to the camshaft bearing rear cap as shown in the figure.
Specified sealant: ThreeBond 1217G or equivalent

note

Install the camshaft bearing rear cap immediately after applying sealant.

3.Install the camshaft bearing caps to the cylinder head.

note

4.Tighten each camshaft bearing cap mounting bolt to the specified torque in the order of number shown in the figure in two or three steps.

Tightening torque:

M6: 11 ± 1 N·m
M8: 20 ± 1 N·m