Fuel supply pump removal (RZ4E-TC)

1. Component views

Fuel supply pump

Part name

  1. Bolt
  2. Fuel supply pump
  3. O-ring
  4. Nut
  5. Bolt
  6. Supply pump bracket
  7. O-ring
  8. Supply pump gear
  9. Supply pump gear nut

Tightening torque

1: 25 N・m { 2.5 kgf・m / 18 lb・ft }

4: 25 N・m { 2.5 kgf・m / 18 lb・ft }

5: 25 N・m { 2.5 kgf・m / 18 lb・ft }

9: 63.7 N・m { 6.5 kgf・m / 47 lb・ft }

2. Starter motor removal

Refer to "1.Engine 1J.Electrical(RZ4E-TC) starter motor removal".

3. Inlet cover removal

Refer to "1.Engine 1B.Mechanical(RZ4E-TC) inlet cover removal".

4. Fuel feed pipe removal

1) Remove the clip from the fuel feed pipe.

2) Remove the fuel feed pipe from the fuel supply pump and common rail (fuel rail).

Caution

  • Do not reuse the fuel feed pipe.
  • Cover the exposed section to prevent the intrusion of foreign material.

Legend

  1. Fuel feed pipe

5. Water pipe removal

1. Automatic transmission models

1) Disconnect the ATF water hose from the water pipe.

Legend

  1. ATF water hose
  2. Water pipe

2) Disconnect the EGR cooler water hose from EGR cooler water pipe B.

3) Remove the water pipe and EGR cooler water hose as a set from the flywheel housing.

Legend

  1. EGR cooler water pipe B
  2. Nut
  3. Water pipe
  4. EGR cooler water hose

6. Fuel supply pump 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 water inlet pipe side
  2. Top dead center alignment mark on the crank pulley side

2) Disconnect the connector from the fuel temperature sensor.

3) Disconnect the connector from the FRP regulator.

Legend

  1. FRP regulator connector
  2. Fuel temperature sensor connector

4) Disconnect the fuel suction hose from the fuel supply pump.

5) Disconnect the fuel leak-off hose from the fuel supply pump.

Legend

  1. Fuel leak-off hose
  2. Fuel suction hose

6) Remove the fuel supply pump and adapter from the cylinder block.

Caution

  • Do not hold the high pressure pipe.

Legend

  1. Fuel supply pump
  2. Adapter

7) Use bolts to secure the supply pump gear to the adapter.

Note

  • Use M8 x 1.25 bolts with a length of 35 mm {1.38 in} or more.

Caution

  • Secure the bolts and adapter in 3 or more locations.

Legend

  1. Supply pump gear securing holes
  2. Lock bolt hole
  3. Adapter

8) Remove the supply pump gear nut from the fuel supply pump.

9) Remove the supply pump gear from the fuel supply pump using a gear puller.

10) Remove the adapter from the fuel supply pump.

Legend

  1. Fuel supply pump
  2. Adapter

11) Remove the O-ring from the adapter.

12) Remove the O-ring from the fuel supply pump.

Legend

  1. O-ring
  2. Adapter
  3. O-ring
  4. Fuel supply pump
Copyright Mazda Motor Corporation. All rights reserved.