Installation

Fuel Supply Pump

Installation

1. Install the O-ring to the fuel supply pump.






2. Install the pump to the bracket and tighten the 3 bolts to the specified torque.

Tightening torque: 19 N.m (14 lb ft)

CAUTION: Take care not to twist the O-ring.






3. Align the fuel supply pump shaft key and gear. Install the gear and tighten the nut to the specified torque.

There is a round alignment mark on the gear (white paint).

Tightening torque: 64 N.m (47 lb ft)







4. Apply white paint to the top of the fuel supply pump gear tooth directly above the stamped 'O' mark. Refer to the illustration.






5. Turn the crankshaft in the normal direction of engine rotation until the No. 1 or No. 4 cylinder is at TDC on the compression stroke. Refer to the illustration.






NOTE:
- There are 2 timing marks on the crankshaft pulley.
- Mark (1) is near the front cover and is used to bring the 4HK1-TC engine to TDC.
- Mark (2) is not applicable to this engine.
- Be sure to use mark (1) when bringing the engine to TDC.



6. Remove the oil drain adapter.
7. Install the O-ring to the fuel supply pump.
8. Align the slits as shown in the illustration.
9. Insert the stud bolts into the guides and temporarily tighten them.

CAUTION:
- If the stud bolts (cylinder block side) have been loosened or replaced, apply Loctite 262 to the recessed portion of the bolts.







- Check that the round alignment mark (white paint) is positioned as shown in the illustration when viewed from the plug hole. If necessary, reposition the gear.
- Tighten the stud bolts and the nuts to the specified torque.

Tightening torque
nut: 50 N.m (37 lb ft)

bolt: 76 N.m (56 lb ft)







10. Apply a light coat of engine oil to the O-ring.
11. Install the oil drain adapter to the plug hole. Tighten the bolt to the specified torque.

Tightening torque: 8 N.m (6.9 lb ft)







12. Connect the fuel temperature sensor and the suction control valve connectors to the fuel supply pump.
13. Install the fuel feed hose.
14. Install the throttle assembly.
- Coat the fluid gasket and mount within 7 minutes.

Tightening torque: 24 N.m (17 lb ft)

- Install the intake throttle valve chamber hose.







15. Install the fuel pipe and fuel leak-off pipe.
16. Start the engine and idle.

IMPORTANT: In order to make the fuel supply pump characteristic learn into the ECM, let the engine idle until warm-up. If the fuel system DTC' stored in the meantime, once clear DTD and warm-up the engine again.