Engine Mechanical (1ZZ-FE): Camshaft: Installation

1. Put the camshaft timing gear together with the camshaft with the straight pin off the key groove.
2. Turn the camshaft timing gear in the left as shown in the illustration while pushing it gently against the camshaft. Push further at the position where the pin fits into the groove.
   CAUTION: Be sure not to turn the camshaft timing gear to the retard angle side (the right angle).
3. Check that there is no clearance between the gear fringe and camshaft.
4. Tighten the fringe bolt with the camshaft timing gear fixed.

   Torque: 54 N*m (551 kgf*cm, 40 ft.*lbf) 

   Fig 1: Identifying Straight Pin And Key Groove

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Check that the camshaft timing gear can move to the retard angle side (the right angle), and is locked in the most retarded position.

1. Install the timing chain onto the camshaft timing gear with the paint mark aligned with the timing mark on the camshaft timing gear as shown in the illustration.
   Fig 2: Installing Timing Chain Onto Camshaft Timing Gear

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Examine the front marks and numbers and check that the sequence order is as shown in the illustration. Then tighten the bolts.

   Torque: 13 N*m (133 kgf*cm, 10 ft.*lbf) 

Fig 3: Checking Sequence Order Of Bearing Cap

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Put the No. 2 camshaft on the cylinder head with the paint mark of the chain aligned with the timing mark on the camshaft timing gear.
   Fig 4: Aligning Paint Mark And Timing Mark

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Temporarily install the camshaft timing gear set bolt
   Fig 5: Installing Camshaft Timing Gear Set Bolt

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Examine the front marks and numbers and check that the sequence order is as shown in the illustration. Then tighten the bolts.

   Torque: 13 N*m (133 kgf*cm, 10 ft.*lbf) 

4. Install the bearing cap No. 1.

   Torque: 23 N*m (235 kgf*cm, 17 ft.*lbf) 

   Fig 6: Checking Sequence Order Of Bearing Cap

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. While holding the camshaft with a wrench, tighten the camshaft timing gear set bolt.

   Torque: 54 N*m (551 kgf*cm, 40 ft.*lbf) 

   NOTE: Be careful not to damage the valve lifter.
   Fig 7: Tightening Camshaft Timing Gear Set Bolt

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Check that the 2 point marks are aligned on the timing chain cover surface. Also, check that each timing mark is aligned with its corresponding painted link on the timing chain as shown in the illustration. In addition, check that the groove is aligned with timing mark "0" of the chain cover.
   Fig 8: Aligning Points Mark On Timing Chain Cover

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
7. Install the chain tensioner.
   1. Check that the O-ring is clean, and set the hook as shown in the illustration.
   2. Apply a light coat of engine oil to the O-ring.
      Fig 9: Setting Hook

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   3. Install the chain tensioner with the 2 nuts.

      Torque: 9.0 N*m (92 kgf*cm, 80 in.*lbf) 

      NOTE:

      • Be careful not to twist the O-ring.
      • When installing the chain tensioner, set the hook again if the hook releases the plunger.
      Fig 10: Installing Chain Tensioner

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   4. Turn the crankshaft counterclockwise to disconnect the plunger knock pin from the hook.
      Fig 11: Turning Crankshaft Counterclockwise

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   5. Turn the crankshaft clockwise, then check that the slipper is pushed by the plunger. If the plunger is not extended, push the slipper into the chain tensioner using a screwdriver so that the hook is released from the knock pin and the plunger can be extended.

Fig 12: Turning Crankshaft Clockwise

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check the valve clearance (See )VALVE CLEARANCE .

1. Adjust the valve clearance (See )VALVE CLEARANCE .

1. Install the cylinder head cover sub-assembly (See )INSTALLATION .

1. Install the ignition coil assembly (See )INSTALLATION .

Torque: 5.4 N*m (55 kgf*cm, 48 in.*lbf) 

1. Install the cylinder head cover No. 2 (See )INSTALLATION .