PROCEDURE
REMOVE OIL FILLER CAP SUB-ASSEMBLY
Remove the oil filler cap sub-assembly.
REMOVE OIL FILLER CAP GASKET
Remove the oil filler cap gasket.
REMOVE ENGINE COVER JOINT
Remove the 2 engine cover joints.
REMOVE SPARK PLUG
REMOVE CAMSHAFT POSITION SENSOR (for Intake Side)
REMOVE CAMSHAFT POSITION SENSOR (for Exhaust Side)
REMOVE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (for Intake Side)
REMOVE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (for Exhaust Side)
REMOVE CRANKSHAFT POSITION SENSOR
REMOVE ENGINE OIL PRESSURE SWITCH ASSEMBLY
REMOVE KNOCK SENSOR
REMOVE ENGINE COOLANT TEMPERATURE SENSOR
REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY
Remove the 13 bolts, seal washer and cylinder head cover sub-assembly.
Remove the 3 gaskets from the camshaft bearing cap.
Note
As gaskets may stick to the cylinder head cover, be careful not to drop any of the gaskets into the engine when removing the cylinder head cover.
REMOVE CYLINDER HEAD COVER GASKET
Remove the cylinder head cover gasket.
REMOVE SPARK PLUG TUBE GASKET
Pry up the 4 claws of the ventilation baffle plate.
Note
Do not deform the claws of the ventilation baffle plate more than necessary.
Using a screwdriver as shown in the illustration, deform each spark plug tube gasket inwards and remove the 4 spark plug tube gaskets from cylinder head cover sub-assembly.
Note
As much as possible prevent the spark plug tube gaskets from being deformed.
Do not damage the spark plug tube gasket and cylinder head cover sub-assembly.
Make sure not to damage the spark plug tube gasket and cylinder head cover sub-assembly when inserting the screwdriver in the joint area.
Tech Tips
If the cylinder head cover sub-assembly is damaged, smooth the surface with 400-grid sandpaper.
REMOVE OIL FILTER CAP ASSEMBLY
SET NO. 1 CYLINDER TO TDC/COMPRESSION
| *a | Timing Mark |
| *b | Timing Notch |
Turn the crankshaft pulley until its timing notch and timing mark "0" of the timing chain cover are aligned.
Check that the timing marks on both the camshaft timing exhaust gear and camshaft timing gear are facing upward as shown in the illustration.
Tech Tips
If the marks are not as shown, turn the crankshaft 1 complete revolution (360°) and align the marks as specified above.
REMOVE CRANKSHAFT PULLEY
REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY
Remove the 2 nuts, bracket, No. 1 chain tensioner assembly and gasket.
Note
Do not turn the crankshaft without the No. 1 chain tensioner assembly installed.
REMOVE ENGINE MOUNTING BRACKET STUD BOLT
Remove the engine mounting bracket stud bolt.
REMOVE TIMING CHAIN COVER SUB-ASSEMBLY
REMOVE TIMING CHAIN COVER OIL SEAL
REMOVE WATER INLET HOUSING
Remove the 3 bolts, water inlet housing and gasket.
REMOVE NO. 1 GENERATOR BRACKET
Remove the 4 bolts and No. 1 generator bracket.
REMOVE CHAIN TENSIONER SLIPPER
REMOVE NO. 1 CHAIN VIBRATION DAMPER
Remove the 2 bolts and No. 1 chain vibration damper.
REMOVE NO. 2 CHAIN VIBRATION DAMPER
REMOVE CHAIN SUB-ASSEMBLY
| *a | Turn |
| *b | Place the Chain on the Gear |
| *c | Loosen the Chain |
Hold the hexagonal portion of the camshaft with a wrench and turn the camshaft timing gear assembly counterclockwise to loosen the chain sub-assembly between the camshaft timing gears.
With the chain sub-assembly loosened, release the chain sub-assembly from the camshaft timing gear assembly and place it on the camshaft timing gear assembly.
Tech Tips
Be sure to release the chain sub-assembly from the sprocket completely.
Turn the camshaft clockwise to return it to the original position and remove the chain sub-assembly.
REMOVE CRANKSHAFT TIMING SPROCKET
REMOVE NO. 2 CHAIN SUB-ASSEMBLY
REMOVE NO. 1 CRANKSHAFT POSITION SENSOR PLATE
REMOVE CRANKSHAFT TIMING GEAR KEY
| *1 | Protective Tape |
Using a screwdriver, remove the 2 crankshaft timing gear keys.
Tech Tips
Tape the screwdriver tip before use.
INSPECT CAMSHAFT TIMING GEAR ASSEMBLY
INSPECT CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY
REMOVE CAMSHAFT TIMING GEAR ASSEMBLY
REMOVE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY
REMOVE CAMSHAFT BEARING CAP
REMOVE CAMSHAFT
REMOVE NO. 2 CAMSHAFT
REMOVE NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY
Remove the 16 No. 1 valve rocker arm sub-assemblies.
Tech Tips
Arrange the removed parts in the correct order.
REMOVE VALVE LASH ADJUSTER ASSEMBLY
Remove the 16 valve lash adjuster assemblies from the cylinder head.
Tech Tips
Arrange the removed parts in the correct order.
REMOVE OIL CONTROL VALVE FILTER
Remove the oil control valve filter from the No. 1 camshaft bearing cap.
REMOVE NO. 1 CAMSHAFT BEARING
REMOVE NO. 2 CAMSHAFT BEARING
REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY
REMOVE VALVE STEM CAP
Remove the 16 valve stem caps.
Tech Tips
Arrange the removed parts in the correct order.
REMOVE CAMSHAFT HOUSING STRAIGHT PIN
Note
It is not necessary to remove a straight pin unless it is being replaced.
REMOVE CYLINDER HEAD SUB-ASSEMBLY
REMOVE CYLINDER HEAD GASKET
REMOVE PCV VALVE SUB-ASSEMBLY
REMOVE OIL PAN DRAIN PLUG
Remove the oil pan drain plug and gasket.
REMOVE NO. 2 OIL PAN SUB-ASSEMBLY
REMOVE OIL PUMP ASSEMBLY
REMOVE ENGINE REAR OIL SEAL
REMOVE STIFFENING CRANKCASE ASSEMBLY
Uniformly loosen and remove the 11 bolts.
| *1 | Protective Tape |
Using a screwdriver, remove the stiffening crankcase assembly by prying between the stiffening crankcase and cylinder block.
Note
Be careful not to damage the contact surfaces of the stiffening crankcase and cylinder block.
Tech Tips
Tape the screwdriver tip before use.
REMOVE NO. 1 TAPER SCREW PLUG
Remove the No. 1 taper screw plug.
REMOVE STUD BOLT
Note
If a stud bolt is deformed or its threads are damaged, replace it.
REMOVE STIFFENING CRANKCASE RING PIN
Note
It is not necessary to remove a ring pin unless it is being replaced.