Daewoo Musso. Manual - part 186

1F3-24  OM600 ENGINE CONTROLS

5. Opening pressure test :

Open the valve (3) and slowly operate the hand lever at
tester (approx. 1 stroke / second) and measure opening
pressure.

Notice

If out of standard, repair the injection nozzle.

New Nozzle

Used Nozzle

Difference Between Nozzles

115 - 125bar

Min. 100bar

Max. 5bar

6. Leak test

Slowly operate the hand lever at the tester until get a
pressure of approx. 90bar. Maintain this pressure for more
than

20 seconds and within this period no drop of fuel should
build up at the nozzle tip.

OM600 ENGINE CONTROLS  1F3-25

INJECTION NOZZLES

1 Fuel Injection Nozzle ............................. 35-40Nm
2 Fuel Return Hose
3 Plug
4 Nozzle Washer ....................................... Replace
5 Fuel Injection Pipe ..................................... 18Nm

1F3-26  OM600 ENGINE CONTROLS

Tools Required

001 589 65 09 00  Serration Wrench

Removal & Installation Procedure

1. Remove the plastic clip from the injection pipe

2. Remove the fuel return hose.

3. Disconnect the injection pipes from the injection nozzles and

push them to the side.

4. Remove the fuel injection nozzle.

Serration Wrench 001 589 65 09 00

Notice

Replace the washers.

5. Installation should follow the removal procedure in the

reverse order.

Notice

Pay attention to the installation position of new nozzle washer
and tightening torque

OM600 ENGINE CONTROLS  1F3-27

INJECTION NOZZLE REPAIR

Preceding Work : Removal of fuel injection nozzle

1 Nozzle Holder
2 Steel Washer
3 Compression Spring
4 Thrust Pin

5 Intermediate Disc
6 Nozzle Needle
7 Nozzle Body
8 Nozzle Tensioning Nut ................................ 80Nm