Identification procedure
1. The engine number is stamped on the cylinder block under the No. 6 engine exhaust manifold. Verify that the engine number looks like "10HMA XXXXX~"
2. If the engine number "10HMC XXXXX~", go to section "Camshaft control actuator assembly (HMC engine) ".
Necessary equipment
EN-46105 Camshaft Locking Tool Kit
EN-46108 Timing chain holding tool kit
EN-46111 Crankshaft Turning Tool
Attention! Setting the valve timing is required in all cases where the camshaft drive system has been affected and it is necessary to ensure that the required relationship between any chain and sprocket has not been violated. Even if this applies to only one sprocket, repeated rotations of the crankshaft will not reproduce conditions in which it is possible to maintain the correct valve timing. To set the valve timing, if required, follow the instructions for installing the bank 2 secondary camshaft drive circuit components.
Removal procedure
Bank 1
1. Remove the cylinder head cover for cylinder bank 1. «cylinder head cover» in this section.
2. Remove the camshaft position sensor. See Part 1F3, Engine Controls - HFV6 3.2L.
3. Remove the valve timing actuator solenoid valves. Part 1F3, Engine Controls - HFV6 3.2L.
4. Remove the crankshaft pulley. See «crankshaft pulley» in this section.
5. Install tool EN-46111 on the crankshaft to rotate it.
6. Rotate the crankshaft so that the camshafts are in the neutral position with the chain loose. Lysky (1) camshaft will be parallel to the interface (2) with cylinder head cover.
7. Install fixture EN-46105-1 (1) on camshafts (2) cylinder bank 1 cylinder head (3).
Note:
To prevent rotation of the camshaft / engine, a wrench should be used (1), by installing it on a hexagon (2) camshaft. The oil pump should be disassembled only when looking for the causes of malfunctions associated with the lubrication system. The disassembled oil pump cannot be reused and must be replaced.
Do not remove the camshaft actuator bolt at this stage.
8. Loosen the camshaft control actuator bolt.
Note: If the camshaft timing chain has already been removed, go to Step 12.
Attention! It is necessary that the grips of the EN-46108 tool completely encircle the camshaft drive chain, the wing nuts are tightened, and the chain is tensioned.
9. Install fixture EN-46108 (1 and 2) to hold (3 and 4) camshaft drive chains.
10. Firmly tighten the wing nuts of tool EN-46108.
Note: Mark the camshaft timing chain and variable valve timing actuators to ensure correct reassembly.
11. Mark the camshaft drive chain and, where appropriate, both camshaft timing drives.
12. Remove bolt (1) drive mounts (2) adjust the valve timing of the exhaust camshaft of cylinder bank 1 and remove the actuator.
13. Remove bolt (1) drive mounts (2) adjust the valve timing of the intake camshaft of cylinder bank 1 and remove the actuator.
Bank 2
1. Remove cylinder head cover for cylinder bank 2. Refer to «cylinder head cover» in this section.
2. Remove the camshaft position sensor. See Part 1F3, Engine Controls - HFV6 3.2L.
3. Remove the valve timing actuator solenoid valves. Part 1F3, Engine Controls - HFV6 3.2L.
4. Remove the crankshaft pulley. See «crankshaft pulley» in this section.
5. Install tool EN-46111 on the crankshaft to rotate it.
6. Rotate the crankshaft so that the camshafts are in the neutral position with the chain loose. Lysky (1) camshaft will be parallel to the interface (2) with cylinder head cover.
7. Install fixture EN-46105-1 (1) on camshafts (2) row of cylinders 2 cylinder heads.
Note:
Use a wrench to prevent rotation of the camshaft/engine (1), by installing it on a hexagon (2) camshaft.
Do not remove the camshaft actuator bolt at this stage.
8. Loosen the camshaft control actuator bolt.
Note: If the camshaft timing chain has already been removed, go to Step 12.
Attention! It is necessary that the grips of tool EN-46108 fully encircle the camshaft drive chain, the wing nuts are tightened, and the chain is tensioned.
9. Install fixture EN-46108 (1 and 2) to hold (3 and 4) camshaft drive chains.
10. Firmly tighten the wing nuts of tool EN-46108.
Note: Mark the camshaft timing chain and variable valve timing actuators to ensure correct reassembly.
11. Mark the camshaft drive chain and, where appropriate, both camshaft timing drives.
12. Remove bolt (1) drive mounts (2) adjust the valve timing of the exhaust camshaft of cylinder bank 1 and remove the actuator.
13. Remove bolt (1) drive mounts (2) adjust the valve timing of the intake camshaft of cylinder bank 1 and remove the actuator.
Clear, clean
1. Solvent clean the outside of each valve timing actuator.
2. Dry the components of the gas distribution mechanisms with compressed air.
Inspection
1. Inspect each valve timing actuator from the front, checking for the following faults:
- Sprocket damage (1),
- Breaker/sensor gear damage (2),
- Damage to the inner seating / sealing surface of the hub flange (3) camshaft control drive bolts.
2. Inspect the rear of each camshaft control actuator for the following faults:
- Sprocket damage (1),
- Dowel pin damage (2) camshaft,
- Damage to the inner seating / sealing surface of the hub flange (3),
- Blockage of oil channels (4),
- Loose or missing bolts (5) corps.
Installation procedure
1. Installation is carried out in the reverse order to the removal of parts.
2. Align the marks made before removal on the valve timing actuators and on the camshaft drive circuit.
3. Install the valve timing actuators.
Tighten
Tighten the bolts for fastening the actuators for regulating the valve timing to a torque of 58 Nm (43 lb-ft).
4. Remove the camshaft timing chain fixing tools.
Camshaft control actuator assembly (HMC engine)
Identification procedure
1. The engine number is stamped on the cylinder block under the No. 6 engine exhaust manifold. Verify that the engine number looks like "10HMC XXXXX~".
2. If the engine number "10HMA XXXXX~", go to section "Camshaft control actuator assembly (HMA engine) ".
Necessary equipment
EN-46105 Camshaft Locking Tool Kit
EN-48313 Timing chain retainer
EN-46111 Crankshaft Turning Tool