Timing chain removal (4JJ3 with DPD)

1. Preliminary and post procedures

1. Preliminary procedures

1) Open the engine hood.

2) Disconnect the battery cable from the battery negative terminal.

Caution

  • After turning OFF the ignition switch (power mode for models with passive entry and start system), do not disconnect the battery cable within 3 minutes.
  • If the battery cable is disconnected within 3 minutes, the vehicle electronic control system may malfunction.
  • If the battery cable is disconnected, perform the setting of the front door power window switch with AUTO UP/AUTO DOWN function after connecting the battery negative terminal.

3) Raise the vehicle.

3. Coolant drain

Warning

  • Do not loosen the radiator cap or reserve tank cap when coolant is hot, as doing so may result in burns caused by the release of steam or hot water.
  • When opening the radiator cap, cover the cap with a thick cloth once the engine coolant has cooled and slowly turn to release pressure.

1) Remove the radiator cap from the radiator.

2) Loosen the radiator drain plug, and drain the coolant into a pan.

3) Loosen the drain plug on the cylinder block, and drain the coolant to a pan.

Legend

  1. Drain plug

4) Apply LOCTITE 262 or equivalent to the threaded portion of the cylinder block side drain plug.

5) Tighten the drain plug on the cylinder block.

Tightening torque: 21.6 N・m { 2.2 kgf・m / 16 lb・ft }

6) Tighten the radiator drain plug.

4. Air duct removal

1) Remove the intake air duct from the air cleaner and radiator core support.

Legend

  1. Intake air duct
  2. Clip

2) Remove the PCV hose from the cylinder head cover and air duct.

Legend

  1. PCV hose
  2. Clamp

3) Remove the air duct from the air cleaner and turbocharger.

Legend

  1. Air duct

5. Air cleaner removal

1) Disconnect the connector from the MAF and IAT sensor.

2) Remove the air cleaner from the vehicle.

Legend

  1. Air cleaner
  2. MAF and IAT sensor

6. Cylinder head cover removal

7. A/C compressor drive belt removal

1) Loosen the tension pulley lock nut.

2) Loosen the tension pulley adjust bolt.

3) Remove the A/C compressor drive belt from the following parts.

  • Tension pulley
  • A/C compressor
  • Crankshaft pulley
  • Idle pulley

Legend

  1. Lock nut
  2. Adjust bolt
  3. Idle pulley
  4. A/C compressor drive belt
  5. Idle pulley

8. Water pipe removal

1) Remove the water pipe from the following parts.

  • Thermostat
  • Cylinder head
  • Turbocharger

9. Tension pulley removal

1) Remove the tension pulley from the cylinder head.

10. Timing chain upper cover removal

1) Remove the idle pulley from the timing chain upper cover.

2) Disconnect the connector from the CMP sensor.

Legend

  1. CMP sensor

3) Remove the timing chain upper cover from the cylinder head.

Legend

  1. Timing chain upper cover

11. Timing chain lower cover removal

1) Remove the idle pulley from the timing chain lower cover.

2) Remove the noise cover from the timing chain lower cover.

3) Remove the timing chain lower cover from the gear case cover.

12. Timing chain removal

1) Rotate the crankshaft in the forward direction (clockwise) to align the No. 1 cylinder piston to compression top dead center.

Legend

  1. Top dead center alignment mark on the gear case cover side
  2. Crankshaft pulley side top dead center alignment mark

2) Align the marks of the camshaft upper bracket and camshaft.

Legend

  1. Alignment mark

3) Remove the oil feed pipe from the timing chain tensioner.

Caution

  • Do not reuse the gasket.

4) Remove the timing chain tensioner and gasket from the cylinder head.

Caution

  • Do not reuse the gasket.

Legend

  1. Oil feed pipe
  2. Timing chain tensioner
  3. Gasket

5) Remove the timing chain lever pivot from the timing chain tension lever.

6) Remove the idle gear D shaft bolt and sleeve from idle gear D and sprocket.

7) Remove the timing chain and sprocket as a set from idle gear D.

Legend

  1. Idle gear D shaft bolt
  2. Sleeve
  3. Sprocket

8) Remove the timing chain from the supply pump sprocket by lowering the timing chain and sprocket.

9) Take the timing chain tension lever out from the cylinder head.

10) Remove the timing chain guide from the cylinder head and cylinder block.

Legend

  1. Timing chain guide bolt