Removal procedure
1. Disconnect the negative battery cable.
2. Remove the engine cover screw.
3. Disconnect the ignition wires from the spark plugs.
4. Disconnect the breather hose and the positive crankcase ventilation hose from the cylinder head cover.
5. Remove cylinder head cover. See «cylinder head cover» in this section.
6. Remove the timing belt. follow the paragraph «The drive belt of the gas distribution mechanism» in this section.
Note: Be especially careful not to scratch, dent or damage the camshafts.
7. While firmly holding the intake camshaft, remove the intake camshaft gear screw.
8. Remove the intake camshaft gear.
9. While firmly holding the exhaust camshaft, remove the exhaust camshaft gear screw.
10. Remove the exhaust camshaft gear.
11. Remove the camshaft position sensor (CMP).
Installation procedure
1. Install the camshaft position sensor (SMR).
Tighten
Tighten the camshaft position sensor bolt to 8 Nm (71 lb-in).
Note: Be especially careful not to scratch, dent or damage the camshafts.
2. Install the intake camshaft gear.
3. While firmly holding the intake camshaft, install a new intake camshaft gear bolt.
Tighten
Tighten the intake camshaft gear bolt to 50 Nm (37 lb-ft) plus 60°and 15°using the angle torque indicator KM-470-B.
4. Install the exhaust camshaft gear.
5. While firmly holding the exhaust camshaft, install a new exhaust camshaft gear bolt.
Tighten
Tighten the exhaust camshaft gear bolt to 50 Nm (37 lb-ft) plus 60°and 15°using the angle torque indicator KM-470-B.
6. Install the timing belt. follow the paragraph «The drive belt of the gas distribution mechanism» in this section.
7. Apply a small amount of sealant to the corners of the front camshaft head and where the top of the rear cylinder head cover attaches to the cylinder head gasket.
8. Install the cylinder head cover. See «cylinder head cover» in this section.
Tighten
Tighten cylinder head cover bolts to 8 Nm (71 lb-in).
9. Connect the breather and positive crankcase ventilation hose to the cylinder head cover.
10. Connect the ignition wires to the spark plugs.
11. Install the decorative engine cover.
Tighten
Tighten the bolts and nuts of the decorative engine cover to a torque of 8 Nm (71 lb-in).
12. Connect the negative battery cable.
