PROCEDURE
INSTALL ENGINE ON ENGINE STAND
REMOVE ENGINE HANGER
REMOVE OIL LEVEL DIPSTICK SUB-ASSEMBLY
REMOVE ENGINE OIL LEVEL DIPSTICK GUIDE
REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR
REMOVE NO. 2 EXHAUST MANIFOLD HEAT INSULATOR
REMOVE MANIFOLD STAY
REMOVE EXHAUST MANIFOLD CONVERTER SUB-ASSEMBLY
REMOVE FUEL DELIVERY PIPE
REMOVE FUEL INJECTOR ASSEMBLY
REMOVE NO. 1 DELIVERY PIPE SPACER
REMOVE THROTTLE WITH MOTOR BODY ASSEMBLY
REMOVE EGR PIPE CONNECTOR
REMOVE INTAKE MANIFOLD
REMOVE NO. 1 INTAKE MANIFOLD TO HEAD GASKET
REMOVE EGR VALVE ASSEMBLY
REMOVE IGNITION COIL ASSEMBLY
REMOVE VENTILATION HOSE
REMOVE NO. 2 VENTILATION HOSE
REMOVE NO. 1 WATER BY-PASS PIPE
REMOVE V-RIBBED BELT TENSIONER ASSEMBLY
REMOVE NO. 1 CRANKSHAFT POSITION SENSOR
REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY
REMOVE WATER INLET
REMOVE NO. 2 WATER INLET HOUSING GASKET
REMOVE CRANKSHAFT POSITION SENSOR
REMOVE CRANKSHAFT PULLEY
REMOVE TIMING CHAIN COVER SUB-ASSEMBLY
REMOVE TIMING CHAIN COVER OIL SEAL
REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY
REMOVE NO. 2 CHAIN VIBRATION DAMPER
REMOVE TIMING CHAIN TENSION ARM
REMOVE CHAIN SUB-ASSEMBLY
REMOVE TIMING CHAIN GUIDE
INSPECT CAMSHAFT TIMING GEAR ASSEMBLY
Inspect the lock of the camshaft timing gear.
| *1 | Adhesive Tape |
| *a | Adhesive Tape Sealing Area |
| *b | Prick a Hole |
After cleaning and degreasing the VVT oil hole on the intake side of the No. 1 camshaft bearing cap, completely seal the oil hole with adhesive tape or equivalent as shown in the illustration to prevent air from leaking.
Note
Be sure to seal the oil hole completely because air leaks due to insufficient sealing will prevent the lock pin from being released.
Prick a hole in the tape covering the oil hole as shown in the illustration (Procedure A).
Apply approximately 150 kPa (1.5 kgf/cm2, 22 psi) of air pressure to the hole pricked in procedure A to release the lock pin.
Note
If air leaks out, reattach adhesive tape.
Cover the oil hole with a piece of cloth when applying air pressure to prevent oil from spraying.
Forcibly turn the camshaft timing gear assembly in the advance direction (counterclockwise).
Tech Tips
Depending on the air pressure applied, the camshaft timing gear assembly may turn in the advance direction without assistance by hand.
Turn the camshaft timing gear assembly within its movable range (26.5 to 28.5°) 2 or 3 times without turning it to the most retarded position. Make sure that the camshaft timing gear assembly turns smoothly.
Remove the adhesive tape from the No. 1 camshaft bearing cap.
INSPECT CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY
Check the lock of the camshaft timing exhaust gear.
| *1 | Adhesive Tape |
| *a | Adhesive Tape Sealing Area |
| *b | Prick a Hole |
After cleaning and degreasing the VVT oil hole on the exhaust side of the No. 1 camshaft bearing cap, completely seal the oil hole with adhesive tape or equivalent as shown in the illustration to prevent air from leaking.
Note
Be sure to seal the oil hole completely because air leaks due to insufficient sealing will prevent the lock pin from being released.
Prick a hole in the tape covering the oil hole as shown in the illustration (Procedure B).
Apply approximately 200 kPa (2.0 kgf/cm2, 28 psi) of air pressure to the hole pricked in procedure B to release the lock pin.
Note
If air leaks out, reattach adhesive tape.
Cover the oil hole with a piece of cloth when applying air pressure to prevent oil from spraying.
Using a screwdriver with its tip wrapped with tape, forcibly turn the camshaft timing exhaust gear in the retard direction (clockwise).
Note
Be sure to keep the camshaft timing exhaust gear in the retard direction using a screwdriver. If the gear is released, it will return to the most advanced position automatically due to force from the spring.
Do not damage the camshaft timing exhaust gear.
Using a screwdriver with its tip wrapped with tape, turn the camshaft timing exhaust gear within its movable range (19 to 21°) 2 or 3 times without turning it to the most advanced position. Make sure that the camshaft timing exhaust gear turns smoothly.
Remove the adhesive tape from the No. 1 camshaft bearing cap.
REMOVE CAMSHAFT TIMING GEAR ASSEMBLY
| *a | Do Not Remove |
Remove the flange bolt while holding the hexagonal portion of the camshaft, and then remove the camshaft timing gear assembly.
Note
Before removing the camshaft timing gear, make sure that the lock pin has been released.
Be sure not to remove the other 4 bolts.
Keep the camshaft timing gear assembly horizontal while removing it from the camshaft.
REMOVE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY
| *a | Do Not Remove |
Remove the flange bolt while holding the hexagonal portion of the camshaft, and then remove the camshaft timing exhaust gear assembly.
Note
Be sure not to remove the other 4 bolts.
Keep the camshaft timing exhaust gear assembly horizontal while removing it from the camshaft.
REMOVE CAMSHAFT BEARING CAP
Uniformly loosen and remove the 5 bearing cap bolts in the sequence shown in the illustration.
Uniformly loosen and remove the 15 bearing cap bolts in the sequence shown in the illustration.
Note
Uniformly loosen the bolts while keeping the camshaft level.
Remove the 5 bearing caps.
Tech Tips
Arrange the removed parts in the correct order.
REMOVE NO. 2 CAMSHAFT
Remove the No. 2 camshaft.
REMOVE CAMSHAFT
Remove the camshaft.
REMOVE NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY
REMOVE VALVE LASH ADJUSTER ASSEMBLY
REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY
Remove the 3 bolts.
| *1 | Protective Tape |
Using a screwdriver with its tip wrapped with protective tape, remove the camshaft housing by prying between the cylinder head and camshaft housing.
Note
Be careful not to damage the contact surfaces of the cylinder head and camshaft housing.
INSPECT CAMSHAFT
INSPECT NO. 2 CAMSHAFT
INSPECT CAMSHAFT THRUST CLEARANCE
INSPECT CAMSHAFT OIL CLEARANCE
INSPECT NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY
INSPECT VALVE LASH ADJUSTER ASSEMBLY