SsangYong Musso. Manual - part 343

M161 ENGINE CONTROLS  1F2-51

9. Installation should follow the removal procedure in the

reverse order.

10. Check for fuel pressure and internal leakage by operating

the engine.

8. Pull out the injector from intake manifold and remove the

fuel distributor.

Notice

Replace the injector O-ring with new one.

Ignition Coil & Cable

z

Ignition coil T1/1 No.1 cylinder + No.4 cylinder

z

Inition coil T1/2 No.1 cylinder + No.4 cylinder

1F2-52  M161 ENGINE CONTROLS

Fuel Pressure Test

1. Turn the ignition switch to "OFF" position.

2. Remove the fuel pressure test connector.

     Vacuum Hose Connected (bar)

      3.2-3.6

Vacuum Hose Disconnected (bar)                3.7-4.2

5. Replace the pressure regulator diaphragm if out of the

specification.

3. Connect the fuel pressure gauge to the fuel pressure test

connector.

4. Test the fuel pressure at idling by operating the engine.

M161 ENGINE CONTROLS  1F2-53

3. If there is no change in fuel pressure and maintain the

following pressure over 30 minutes, it is normal.

Internal Leakage Test

1. Connect the fuel pressure gauge to the fuel pressure test

connector.

2. Stop the engine for approx. 30 minutes and then check the

fuel pressure changes.

Fuel pressure

drops slowly

•

Fuel leakage at the
injector

•

Faulty fuel pressure
regulator's
diaphragm and O-
ring.

Fuel pressure

drops rapidly

•

Faulty check valve
in the fuel pump.

    Possible Cause

Pressure Change

Fuel  Pressure(bar)

  2.5

Discharging the pressure in fuel system

1. Remove the fuel pressure test connector.

Installation Notice

2. Remove the fuel pressure in fuel system by pressing the

service valve with a clean, pointy tool.

Notice

Place a cloth so that the fuel doesn't stain around.

Tightening Torque

22.5 - 27.5 Nm

1F2-54  M161 ENGINE CONTROLS

INJECTOR

Preceding Work : Removal of fuel distributor

1 O-ring ................................. Replace, if damaged
2 Injector Bracket
3 Injector

4 O-ring ................................. Replace, if damaged
5 Fuel Distributor