Exhaust manifold removal (4JJ3 with DPD)

1. Component views

Exhaust manifold

Part name

  1. Nut and bolt
  2. EGR cooler bypass pipe
  3. Exhaust manifold
  4. Heat protector
  5. Bolt
  6. Nut and bolt

Tightening torque

1: 27 N・m { 2.8 kgf・m / 20 lb・ft }

5: 25 N・m { 2.5 kgf・m / 18 lb・ft }

6: 52 N・m { 5.3 kgf・m / 38 lb・ft }

3. EGR water pipe removal

1) Disconnect the water hose from the water intake pipe and return hose.

2) Install the EGR water pipe to the oil cooler and turbocharger lower bracket.

4. EGR cooler bypass pipe removal

1) Remove the EGR cooler bypass pipe and gasket from the exhaust manifold and inlet manifold.

Caution

  • Do not reuse the gasket.

5. EGR gas temperature sensor 1 (exhaust manifold side) removal

1) Disconnect the connector from EGR gas temperature sensor 1 (exhaust manifold side).

2) Remove the sensor connector from the water pipe.

3) Remove EGR gas temperature sensor 1 (exhaust manifold side) from the exhaust manifold.

Legend

  1. EGR gas temperature sensor 1 (Exhaust manifold side)

6. EGR gas pressure pipe removal

1) Remove the EGR gas pressure pipe from the exhaust manifold and EGR gas pressure pipe bracket.

Caution

  • Be sure to secure the nipple so that it will not corotate when loosening the flare nut.
  • If there is looseness in the nipple, further tighten it when installing the flare nut

Legend

  1. Flare nut
  2. Nipple

Legend

  1. EGR gas pressure pipe

2) Remove the EGR gas pressure pipe bracket from the cylinder head.

7. Exhaust manifold removal

1) Remove the differential pressure sensor heat protector from the cylinder head.

2) Remove the exhaust manifold heat protector from the exhaust manifold.

3) Remove the exhaust manifold and gasket from the cylinder head.

Caution

  • Do not reuse the gasket.