PROCEDURE
DRAIN ENGINE COOLANT
PRECAUTION
Note
After turning the engine switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work.
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
Note
When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
REMOVE BATTERY
REMOVE NO. 1 BATTERY TRAY SUPPORT
REMOVE FUEL PUMP ASSEMBLY (for High Pressure)
SEPARATE WIRE HARNESS
Remove the bolt, 4 nuts, 5 clamps and 2 connectors and separate the wire harness.
|
Bolt | |
Nut |
DISCONNECT INLET HEATER WATER HOSE A
DISCONNECT OUTLET HEATER WATER HOSE A
REMOVE NO. 2 WATER BY-PASS PIPE
REMOVE WIRE HARNESS CLAMP BRACKET
Separate the wire harness clamp from the wire harness clamp bracket.
Remove the 2 bolts and the wire harness clamp bracket from cylinder head cover sub-assembly LH.
Remove the bolt and the wire harness clamp bracket from the cylinder head cover sub-assembly LH.
DISCONNECT UNION TO CONNECTOR TUBE HOSE (for RHD)
REMOVE VACUUM PUMP ASSEMBLY
REMOVE NO. 1 RADIATOR HOSE
REMOVE NO. 2 RADIATOR HOSE
REMOVE NO. 6 WATER BY-PASS HOSE
REMOVE NO. 2 WATER BY-PASS HOSE
REMOVE WATER OUTLET SUB-ASSEMBLY
REMOVE NO. 1 WATER BY-PASS PIPE (w/ Oil Cooler)
REMOVE IGNITION COIL ASSEMBLY
REMOVE SPARK PLUG
REMOVE NO. 2 ENGINE OIL LEVEL DIPSTICK GUIDE
REMOVE CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Intake Side of Bank 1)
REMOVE CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Exhaust Side of Bank 1)
REMOVE CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Intake Side of Bank 2)
REMOVE CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Exhaust Side of Bank 2)
REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY
Remove the 2 clips and No. 1 engine cover sub-assembly from the cylinder head cover sub-assembly.
REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY LH
REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY
REMOVE TIMING CHAIN COVER PLATE
Remove the 4 bolts, timing chain cover plate and gasket.
SET NO. 1 CYLINDER TO TDC/COMPRESSION
| *a | "0" Timing Mark |
| *b | Timing Mark (cutout) |
Turn the crankshaft clockwise to align the timing mark (cutout) on the crankshaft pulley assembly with the "0" timing mark on the timing chain cover assembly.
| *A | for Bank 2 |
| *B | for Bank 1 |
| *a | Paint Mark (yellow) |
Check that the timing marks of the camshaft timing gear assemblies are aligned with the timing marks of the bearing caps as shown in the illustration.
Tech Tips
If the marks are not aligned, turn the crankshaft again to align the marks.
Place paint marks on the timing marks and sprockets of each camshaft timing gear assembly and on the links of the chain sub-assembly.
Tech Tips
Be sure to place the paint marks on 2 links of the chain sub-assembly and on the sprockets of the camshaft timing gear assemblies at the locations of the timing marks of the camshaft timing gear assemblies.
REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY
| *a | 30° |
Turn the crankshaft approximately 30° counterclockwise so that there is some slack in the chain sub-assembly.
Tech Tips
This prevents the valves and pistons from interfering with each other.
| *a | Lever Hole |
| *b | Tensioner Hole |
Align the hole in the lever of the No. 1 chain tensioner assembly with the hole in the tensioner body as shown in the illustration, and then insert a pin with a diameter of 1.27 mm (0.0500 in.) into the hole.
| *a | "0" Timing Mark |
| *b | Timing Mark (cutout) |
Turn the crankshaft clockwise to align the timing mark (cutout) on the crankshaft pulley assembly with the "0" timing mark on the timing chain cover assembly.
Remove the 2 bolts and No. 1 chain tensioner assembly.
Note
Do not drop the No. 1 chain tensioner assembly or bolts into the timing chain cover assembly.
DISCONNECT CHAIN SUB-ASSEMBLY (for Bank 1)
| *a | 30° |
Turn the crankshaft clockwise until it is in the position shown in the illustration so that there is some slack in the chain sub-assembly between the banks.
CAUTION:
As the camshafts turn suddenly, do not touch the camshafts or camshaft timing gear assemblies.
Tech Tips
When turning the crankshaft, engine oil may spray out of the oil holes.
| *a | 5° to 10° |
Turn the crankshaft clockwise until it is in the position shown in the illustration so that the chain sub-assembly can be removed easily.
Tech Tips
When turning the crankshaft, engine oil may spray out of the oil holes.
Remove the chain sub-assembly from the sprocket of the camshaft timing gear sub-assembly and set it on the gear.
CAUTION:
As the camshaft may turn suddenly and pinch your fingers when the chain sub-assembly is removed, pinch the chain sub-assembly and lift it upward to remove it from the sprocket.
REMOVE NO. 2 CHAIN TENSIONER ASSEMBLY
Remove the bolt of the No. 2 chain tensioner assembly.
REMOVE CAMSHAFT TIMING GEAR BOLT (for Intake Side of Bank 1)
| *a | Hold |
| *b | Turn |
Hold the hexagonal portion of the camshaft with a wrench and remove the camshaft timing gear bolt from the camshaft timing gear assembly.
Note
Be careful not to damage the camshaft or cylinder head sub-assembly with the wrench.
REMOVE CAMSHAFT TIMING GEAR BOLT (for Exhaust Side of Bank 1)
| *a | Hold |
| *b | Turn |
Hold the hexagonal portion of the No. 2 camshaft with a wrench and remove the camshaft timing gear bolt from the camshaft timing exhaust gear assembly RH.
Note
Be careful not to damage the camshaft or cylinder head sub-assembly with the wrench.
REMOVE CAMSHAFT BEARING CAP (for Bank 1)
Slide the camshaft timing gear assembly and camshaft timing exhaust gear assembly RH toward the front of the vehicle.
| *1 | Bolt |
| *2 | Washer |
| *a | Part Removal |
| *b | Replacement Bolt and Washer Installation |
Remove the bolts and bearing caps in the order shown in the illustration. Immediately after removing a bearing cap, install replacement bolts and washers in the order shown in the illustration.
Note
Do not install the bearing caps when installing replacement bolts and washers.
Be sure to follow the numerical order when performing this procedure.
Do not allow replacement bolts or washers to contact the camshaft.
Do not drop replacement bolts or washers into the cylinder head.
Tech Tips
Arrange the removed parts so that they can be reinstalled in their original locations.
Part number for replacement bolts: 91551-F0850 (9 bolts)
Part number for replacement washers: 90201-12028 (18 washers)
REMOVE NO. 2 CAMSHAFT
Remove the No. 2 chain tensioner assembly.
Lift up the rear of the No. 2 camshaft so that it is at an angle.
Pull the No. 2 camshaft toward the rear of the vehicle to remove it from the camshaft timing exhaust gear assembly RH.
REMOVE CAMSHAFT
Lift up the rear of the camshaft so that it is at an angle.
Pull the camshaft toward the rear of the vehicle to remove it from the camshaft timing gear assembly.
REMOVE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY (for Bank 1)
Remove the camshaft timing exhaust gear assembly RH.
REMOVE CAMSHAFT TIMING GEAR ASSEMBLY (for Bank 1)
Remove the camshaft timing gear assembly and No. 2 chain sub-assembly.
Note
Do not drop the chain sub-assembly into the gap between the engine and timing chain cover assembly.
Suspend the chain sub-assembly with a string or equivalent.
DISCONNECT CHAIN SUB-ASSEMBLY (for Bank 2)
| *a | "0" Timing Mark |
| *b | Timing Mark (cutout) |
Turn the crankshaft clockwise to align the timing mark (cutout) on the crankshaft pulley assembly with the "0" timing mark on the timing chain cover assembly.
Remove the chain sub-assembly from the sprocket of the camshaft timing gear assembly and set it on the gear.
CAUTION:
As the camshaft may turn suddenly and pinch your fingers when the chain sub-assembly is removed, pinch the chain sub-assembly and lift it upward to remove it from the sprocket.
DISCONNECT NO. 3 CHAIN TENSIONER ASSEMBLY
Remove the bolt of the No. 3 chain tensioner assembly.
REMOVE CAMSHAFT TIMING GEAR BOLT (for Intake Side of Bank 2)
| *a | Hold |
| *b | Turn |
Hold the hexagonal portion of the No. 3 camshaft sub-assembly with a wrench and remove the camshaft timing gear bolt from the camshaft timing gear assembly LH.
Note
Be careful not to damage the camshaft or cylinder head sub-assembly with the wrench.
REMOVE CAMSHAFT TIMING GEAR BOLT (for Exhaust Side of Bank 2)
| *a | Hold |
| *b | Turn |
Hold the hexagonal portion of the No. 4 camshaft sub-assembly with a wrench and remove the camshaft timing gear bolt from the camshaft timing exhaust gear assembly LH.
Note
Be careful not to damage the camshaft or cylinder head sub-assembly with the wrench.
REMOVE CAMSHAFT BEARING CAP (for Bank 2)
Slide the camshaft timing gear assembly and camshaft timing exhaust gear assembly LH toward the front of the vehicle.
| *1 | Bolt |
| *2 | Washer |
| *a | Part Removal |
| *b | Replacement Bolt and Washer Installation |
Remove the bolts and bearing caps in the order shown in the illustration. Immediately after removing a bearing cap, install replacement bolts and washers in the order shown in the illustration.
Note
Do not install the bearing caps when installing replacement bolts and washers.
Be sure to follow the numerical order when performing this procedure.
Do not allow replacement bolts or washers to contact the camshaft.
Do not drop replacement bolts or washers into the cylinder head.
Tech Tips
Arrange the removed parts so that they can be reinstalled in their original locations.
Part number for replacement bolts: 91551-F0850 (9 bolts)
Part number for replacement washers: 90201-12028 (18 washers)
REMOVE NO. 4 CAMSHAFT SUB-ASSEMBLY
Remove the No. 3 chain tensioner assembly.
Lift up the rear of the No. 4 camshaft sub-assembly so that it is at an angle.
Pull the No. 4 camshaft sub-assembly toward the rear of the vehicle to remove it from the camshaft timing exhaust gear assembly LH.
REMOVE NO. 3 CAMSHAFT SUB-ASSEMBLY
Lift up the rear of the camshaft so that it is at an angle.
Pull the No. 3 camshaft sub-assembly toward the rear of the vehicle to remove it from the camshaft timing gear assembly.
REMOVE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY (for Bank 2)
Remove the camshaft timing exhaust gear assembly LH.
REMOVE CAMSHAFT TIMING GEAR ASSEMBLY (for Bank 2)
Remove the camshaft timing gear assembly and No. 2 chain sub-assembly.
Note
Do not drop the chain sub-assembly into the gap between the engine and cover.
Suspend the chain sub-assembly with a string or equivalent.