CAMSHAFT REMOVAL

REMOVE BATTERY

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REMOVE FUEL PUMP ASSEMBLY

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REMOVE GENERATOR ASSEMBLY

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REMOVE NO. 1 ENGINE COVER
1. Remove the 3 clips, then remove the No. 1 engine cover.

REMOVE INJECTOR DRIVER

Text in Illustration
*1	Lock Lever
*a	Release
*b	Lock with Connector

Move the lock levers in the direction indicated by the arrow to release the 3 connector locks. Disconnect the 4 connectors from the injector driver.

Remove the bolt, 2 nuts and injector driver.

Note

Be careful not to drop or strike the injector driver.

REMOVE IGNITION COIL ASSEMBLY
1. Remove the 2 nuts and disconnect the wire harness.
2. Disconnect the wire harness clamp.
3. Remove the 2 bolts and disconnect the 2 wire harness brackets.
4. Disconnect the 6 ignition coil connectors.
5. Remove the 6 bolts and the 6 ignition coil assemblies.
REMOVE SPARK PLUG
1. Remove the 6 spark plugs.
REMOVE NO. 2 ENGINE OIL LEVEL DIPSTICK GUIDE
1. Text in Illustration
  
  *A for 2WD
  
  *B for AWD
  
  Remove the oil level dipstick.
2. Remove the bolt and No. 2 oil level dipstick guide.
3. Remove the O-ring from the No. 2 oil level dipstick guide.

Text in Illustration
*A	for 2WD
*B	for AWD

REMOVE NO. 1 OIL PIPE

Text in Illustration
*1	Oil Pipe Union
*2	Oil Check Valve Bolt

Remove the oil check valve bolt, oil pipe union and No. 1 oil pipe.

Remove the oil control valve filter LH and gaskets.

REMOVE NO. 2 OIL PIPE

Text in Illustration
*1	Oil Pipe Union
*2	Oil Check Valve Bolt

Remove the oil check valve bolt, oil pipe union and No. 2 oil pipe.

Remove the oil control valve filter RH and gaskets.

REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY LH
1. Detach the clamps and disconnect the connectors to disconnect the wire harness from the cylinder head cover LH.
2. Text in Illustration
  
  *1 Baffle Plate
  
  Remove the 12 bolts, head cover sub-assembly LH and gasket.
  
  Note
  
  The baffle plate is located on the back of the portion shown in the illustration. Do not damage the baffle plate when removing the head cover.
3. Remove the 3 gaskets.
REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY
1. Detach the clamps and disconnect the connectors to disconnect the wire harness from the cylinder head cover.
2. Remove the 14 bolts, head cover sub-assembly and gasket.
3. Remove the 3 gaskets.
REMOVE SPARK PLUG TUBE GASKET
1. Text in Illustration
  
  *1 Claw
  
  Pry up the claws of the ventilation baffle plate.
  
  Note
  
  Do not deform the claws of the baffle plate more than necessary.
2. Using a screwdriver as shown in the illustration, deform each spark plug tube gasket inwards and remove the 6 spark plug tube gaskets from the the cylinder head cover.
  Note
  
  As much as possible prevent the plug tube gaskets from being deformed. The removed gaskets will be used when reinstalling the gaskets.
  
  Do not damage the connection of the cylinder head cover.
  
  Make sure not to damage the spark plug tube gasket and cylinder head cover when inserting the screwdriver in the joint area.
  Tech Tips
  
  If the cylinder head cover is damaged, smooth the surface with 400-grit sandpaper.
REMOVE TIMING CHAIN COVER PLATE
1. Remove the 4 bolts, timing chain cover plate and gasket.

Text in Illustration
*1	Baffle Plate

Text in Illustration
*1	Claw

SET NO. 1 CYLINDER TO TDC/COMPRESSION

Turn the crankshaft pulley and align the notch with the "0" timing mark of the timing chain cover.

Text in Illustration
*A	for Bank 2
*B	for Bank 1
*1	Paint Mark
*2	Timing Mark

Check that the timing marks of the camshaft timing gears 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 chain in alignment with the timing marks on each camshaft timing gear and bearing cap.

Tech Tips

Be sure to place the paint marks on 2 links of the chain and on the sprockets of the camshaft timing gears at the locations of the timing marks of the camshaft timing gears.

REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY
1. Turn the crankshaft approximately 30° counterclockwise so that there is some slack in the chain.
  
  Tech Tips
  
  This prevents the valves and pistons from interfering with each other.
2. Text in Illustration
  
  *1 Lever Hole
  
  *2 Tensioner Hole
  
  Align the hole in the lever of the tensioner 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.
3. Turn the crankshaft clockwise and align the notch with the "0" timing mark of the timing chain cover.
4. Remove the 2 bolts and chain tensioner.
  
  Note
  
  Do not drop the No. 1 chain tensioner assembly or bolts into the timing chain cover.
SEPARATE CHAIN SUB-ASSEMBLY
1. Turn the crankshaft clockwise until it is in the position shown in the illustration so that there is some slack in the chain between the banks.
  
  CAUTION:
  
  As the camshafts turn suddenly, do not touch the camshafts or camshaft timing gears.
  
  Tech Tips
  
  When turning the crankshaft, engine oil may spray out of the oil holes.
2. Text in Illustration
  
  *a 5 to 10°
  
  Turn the crankshaft clockwise until it is in the position shown in the illustration so that the chain can be removed easily.
  
  Tech Tips
  
  When turning the crankshaft, engine oil may spray out of the oil holes.
3. Remove the chain from the sprocket of the camshaft timing gear and set it on the camshaft timing gear.
  
  CAUTION:
  
  As the camshaft may turn suddenly and pinch your fingers when the chain is removed, pinch the chain and lift it upward to remove it from the sprocket.

Text in Illustration
*1	Lever Hole
*2	Tensioner Hole

Text in Illustration
*a	5 to 10°

REMOVE CAMSHAFT BEARING CAP (for Bank 1)

Text in Illustration
*1	Service Bolt and Washers (used to temporarily secure the camshaft housing)
*a	Part to be removed
*b	Install the service bolts and washers to temporarily secure the camshaft housing

Remove the bolts and bearing caps in the order shown in the illustration. Immediately after removing bearing caps, install service bolts and washers in the order shown in the illustration.

Torque:: 10 N*m { 102 kgf*cm, 7 ft.*lbf }

Note

Do not install the bearing caps when installing the service bolts and washers.
Be sure to follow the numerical order when performing this procedure.
Do not allow the service bolts and washers to contact the camshaft.
Do not drop the service bolts and washers into the cylinder head.

Tech Tips

Arrange the removed parts so that they can be reinstalled in their original locations.
Part number for the service bolts used to temporarily secure the camshaft housing: 91551-F0850 (9 bolts)
Part number for the service washers used to temporarily secure the camshaft housing: 90201-12028 (18 washers)

REMOVE NO. 2 CAMSHAFT
1. Remove the bolt of the No. 2 chain tensioner assembly.
2. Remove the No. 2 chain tensioner assembly while lifting up the No. 2 camshaft.
3. While lifting up the No. 2 camshaft, pass it through the No. 2 chain and pull it out towards the front of the vehicle to remove it.
REMOVE CAMSHAFT
1. Lift up the rear of the camshaft so that it is at an angle.
2. Remove the chain from the camshaft timing gear and pull out the camshaft and No. 2 chain towards the rear of the vehicle to remove them.
  
  Note
  
  Do not drop the chain into the gap between the engine and cover.
3. Suspend the chain with a string or equivalent.
SEPARATE CHAIN SUB-ASSEMBLY
1. Turn the crankshaft counterclockwise and align the notch with the "0" timing mark of the timing chain cover.
2. Remove the chain from the sprocket of the camshaft timing gear and set it on the camshaft timing gear.
  
  CAUTION:
  
  As the camshaft may turn suddenly and pinch your fingers when the chain is removed, pinch the chain and lift it upward to remove it from the sprocket.

REMOVE CAMSHAFT BEARING CAP (for Bank 2)

Text in Illustration
*1	Service Bolt and Washers (used to temporarily secure the camshaft housing)
*a	Part to be removed
*b	Install the service bolts and washers to temporarily secure the camshaft housing

Remove the bolts and bearing caps in the order shown in the illustration. Immediately after removing bearing caps, install service bolts and washers in the order shown in the illustration.

Torque:: 10 N*m { 102 kgf*cm, 7 ft.*lbf }

Note

Do not install the bearing caps when installing the service bolts and washers.
Be sure to follow the numerical order when performing this procedure.
Do not allow the service bolts and washers to contact the camshaft.
Do not drop the service bolts and washers into the cylinder head.

Tech Tips

Arrange the removed parts so that they can be reinstalled in their original locations.
Part number for the service bolts used to temporarily secure the camshaft housing: 91551-F0850 (8 bolts)
Part number for the service washers used to temporarily secure the camshaft housing: 90201-12028 (16 washers)

REMOVE NO. 4 CAMSHAFT SUB-ASSEMBLY
1. Remove the bolt of the No. 3 chain tensioner assembly.
2. Remove the No. 3 chain tensioner assembly while lifting up the No. 4 camshaft.
3. While lifting up the No. 4 camshaft, pass it through the No. 2 chain and pull it out towards the front of the vehicle to remove it.
REMOVE NO. 3 CAMSHAFT SUB-ASSEMBLY
1. Lift up the rear of the camshaft so that it is at an angle.
2. Remove the chain from the camshaft timing gear and pull out the No. 3 camshaft and No. 2 chain towards the rear of the vehicle to remove them.
  
  Note
  
  Do not drop the chain into the gap between the engine and cover.
3. Suspend the chain with a string or equivalent.

INSPECT CAMSHAFT TIMING GEAR ASSEMBLY

Check the lock of the camshaft timing gear assembly.
1. Clamp the camshaft in a vise, and confirm that the camshaft timing gear assembly is locked.
  
  Note
  
  Be careful not to damage the camshaft.

Text in Illustration
*1	Advanced Side Path
*2	Retard Side Path
*3	Rubber
*4	Vinyl Tape
*a	Open
*b	Close

Release the lock pin.

Cover the 4 oil paths of the cam journal with vinyl tape as shown in the illustration.

Tech Tips

The 2 advance side paths are located in the camshaft groove. Plug one of the paths with a rubber piece.
Break through the tape on the advance side path and the retard side path on the opposite side of the hole of the advance side path, as shown in the illustration.

Text in Illustration
*1	Advanced Side Path
*2	Retard Side Path

Apply approximately 200 kPa (2.0 kgf/cm², 28 psi) of air pressure to the 2 opened paths.

CAUTION:

Cover the paths with a piece of cloth when applying pressure to prevent oil from spraying.

Text in Illustration
*1	Advance Side Path
*2	Retard Side Path
*a	Hold Pressure
*b	Decompress

Check that the camshaft timing gear assembly rotates in the advance direction when reducing the air pressure applied to the retard side path.

Tech Tips

This operation releases the lock pin at the most retarded position.

When the camshaft timing gear assembly reaches the most advanced position, release the air pressure first from the retard side path and next from the advance side path.

Note

Do not release the air pressure from the advance side path first. The gear may abruptly shift in the retard direction and break the lock pin.

Check for smooth rotation.
1. Turn the camshaft timing gear assembly within its movable range (21°) 2 or 3 times, but do not turn it to the most retarded position. Make sure that the gear turns smoothly.
  
  Note
  
  Do not use air pressure to perform the smooth operation check.
Check the lock in the most retarded position.
1. Confirm that the camshaft timing gear assembly locks at the most retarded position.

Text in Illustration
*1	Flange Bolt
*2	Straight Pin
*a	Do Not Remove

Remove the flange bolt and camshaft timing gear assembly.

Note

Do not remove the other 3 bolts.
If planning to reuse the camshaft timing gear, be sure to release the straight pin lock before installing the camshaft timing gear.

INSPECT CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY

Check the camshaft timing exhaust gear lock.
1. Make sure that the camshaft timing exhaust gear assembly locks.

Text in Illustration
*1	Advanced Side Path
*2	Retard Side Path
*3	Rubber
*4	Vinyl Tape
*a	Open
*b	Close

Release the lock pin.

Cover the 4 oil paths of the cam journal with vinyl tape as shown in the illustration.

Tech Tips

The 2 advance side paths are located in the camshaft groove. Plug one of the paths with a rubber piece.
Break through the tape on the advance side path and the retard side path on the opposite side of the hole of the advance side path, as shown in the illustration.

Text in Illustration
*1	Advanced Side Path
*2	Retard Side Path

Apply approximately 200 kPa (2.0 kgf/cm², 28 psi) of air pressure to the 2 opened paths (the advance side path and the retard side path).

CAUTION:

Cover the paths with a piece of cloth when applying pressure to prevent oil from spraying.

Text in Illustration
*1	Advance Side Path
*2	Retard Side Path
*a	Hold Pressure
*b	Decompress

Make sure that the camshaft timing exhaust gear assembly rotates in the retard direction when reducing the air pressure applied to the advance side path.

Tech Tips

The lock pin is released and the camshaft timing exhaust gear assembly turns in the retard direction.

When the camshaft timing exhaust gear assembly moves to the most retarded position, release the air pressure first from the advance side path, and then release the air pressure from the retard side path.

Note

Be sure to release the air pressure from the advance side path first. If the air pressure of the retard side path is released first, the camshaft timing exhaust gear assembly may abruptly shift in the advance direction and break the lock pin or other parts.

Check for smooth rotation.
1. Turn the camshaft timing exhaust gear assembly within its movable range (18.5°) 2 or 3 times, but do not turn it to the most advanced position. Make sure that the gear assembly turns smoothly.
  
  Note
  
  When the air pressure is released from the advance side path and then from the retard side path, the gear assembly automatically returns to the most advanced position due to the advance assist spring operation and locks. Gradually release the air pressure from the retard side path before performing the smooth rotation check.
Check the lock at the most advanced position.
1. Make sure that the camshaft timing exhaust gear assembly locks at the most advanced position.

Text in Illustration
*1	Flange Bolt
*2	Straight Pin
*a	Do Not Remove

Remove the flange bolt and camshaft timing exhaust gear assembly.

Note

Be sure not to remove the other 4 bolts.
If planning to reuse the gear, be sure to release the straight pin lock before installing the gear.