Removal and Installation

REMOVAL AND INSTALLATION









REMOVAL SERVICE POINTS

[[A]] FRONT CAMSHAFT BEARING CAP / OIL FEEDING CAMSHAFT BEARING CAP / CAMSHAFT BEARING CAP / THRUST CAMSHAFT BEARING CAP REMOVAL





CAUTION:
Loosing the camshaft bearing cap installation bolts in four to five steps. Do not loosen bolts in one step as this causes the valve spring force to push on the bolts and make them jump out causing damage to the threads.

First remove a mounting bolt of the front camshaft bearing cap and then a mounting bolt of each camshaft bearing cap in the order shown in the illustration.

[[B]] VALVE TAPPET REMOVAL

Pick out valve tappets with fingers and store removed valve tappets with tags describing the installed position attached for reassembly.

INSTALLATION SERVICE POINTS

]]A[[ VALVE TAPPET INSTALLATION

Install valve tappets at the same position based on tags describing the installed position for reassembly.

]]B[[ CAMSHAFT / BEARING / THRUST CAMSHAFT BEARING CAP / CAMSHAFT BEARING CAP
/ OIL FEEDING CAMSHAFT BEARING CAP / FRONT CAMSHAFT BEARING CAP INSTALLATION





1. When replacing a camshaft bearing, select a bearing with the size corresponding to the identification mark in the table below.
2. Install camshaft bearings on the cylinder head.










3. The identification mark of the camshaft bearing is stamped at the illustrated position.





4. Set the dowel pins of the camshaft at the illustrated positions.





5. Install them upon checking the identification mark so as not to misidentify cap No. and to confuse the intake side with the exhaust side.
Identification mark

I: Intake side
E: Exhaust side
6. 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.
Specified torque: 12± 1Nm (106± 8 in-lb)






7. Tighten each front camshaft bearing cap mounting bolt to the temporarily torque of 17 ± 3 Nm (14 ± 2 ft-lb) in the order shown (1).
8. Tighten each front camshaft bearing cap mounting bolt to the specified torque in the order shown (2).
Specified torque: 30± 2Nm (22± 1 ft-lb)


]]C[[ O-RING / ENGINE OIL CONTROL VALVE INSTALLATION





1.
CAUTION:

- The O-ring must not be reused.
- Wind non-adhesive tape (seal tape, etc.) around the notch of the oil passage of the engine oil control valve before installing the O-ring to prevent damage. Damage to the O-ring causes oil leakage.

Apply a small amount of engine oil to the O-ring of the engine oil control valve.
2. Install the engine oil control valve on the cylinder head.
3. Tighten the engine oil control valve to the specified torque.
Specified torque: 10± 2Nm (89± 17 in-lb)