Daewoo Musso. Manual - part 185

1F3-20  OM600 ENGINE CONTROLS

Tools Required

617 589 04 21 00  Tester

1. Disconnect the fuel line (2) from the fuel filter.

2. Remove the banjo bolt (4) from the fuel injection pump and

remove the seals (3) and fuel line (2).

3. Connect the tester (5).

4. Start the engine and read off the fuel pressure on tester

(5).

Notice

If out of standard, replace the fuel feed pump.

Tester 617 589 04 21 00

5. Stop the engine.

At Idle Speed

At Full load

> 0.3bar

> 0.5bar

6. Remove the tester.

7. Replace the seal and connect the fuel line (2).

OM600 ENGINE CONTROLS  1F3-21

FUEL PUMP

1 Fuel Injection Pump
2 Pressure Line ............................................ 13Nm
3 Suction Line
4 Hose Clip ............................................... Replace

5 Gasket ................................................... Replace
6 Spring Lock Washer
7 Hexagon Nuts
8 Fuel Pump

1F3-22  OM600 ENGINE CONTROLS

INJECTION NOZZLE TEST

Preceding Work : Removal of fuel injection nozzle

1. Fuel Injection Nozzle ............. New : 115 - 125bar

Used : min. 100bar

A Closed Spray = good
B Stringy Spray = poor

2 Tester
3 Valve

OM600 ENGINE CONTROLS  1F3-23

Tools Required

000 589 14 27 00  Tester

Notice

When testing the injection nozzle, do not place your hand into
the spray of a nozzle. The spray will penetrate deep into the
skin and destroy the tissue.

1. Connect the fuel injection nozzle to the tester (2).

Tester 000 589 14 27 00

2. Close the valve (3) and pump 5 times strongly.

3. Chatter test :

Slowly operate the hand lever at tester (approx. 1 stroke
per second). The nozzle must spray with a gentle chattering.

4. Spray pattern test :

Operate the hand lever at tester rapidly (approx. 2~3 strokes
per second).

l

Good

The spray pattern shows closed and well atomized.

l

Poor

The spray pattern shows split, too wide and stringy.

(Repair the fuel injection nozzle)