1998 SSANGYONG MUSSO fuel pump

OM600 ENGINE CONTROLS 1F3-11
VACUUM PUMP TEST
1 Fuel Filter
2 Vacuum Line3 Ancillaries Connection
4 Vacuum Tester
Tools Required
201 589 13 21 00 Vacuum Tester

1F3-12 OM600 ENGINE CONTROLS
Test Procedure
1. Remove the fuel filter (1) and keep the filter not to be
damaged from running engine.
2. Remove the vacuum line (2) from ancillaries connection (3).
3. Connect the vacuum tester (4) to the ancillaries connection
(3).
Vacuum Tester 201 589 13 21 00
4 Run the engine at idle and check vacuum pressure after 30
sec.
Notice
If out of standard, replace the vacuum pump.
5. Remove the vacuum tester.
6. Connect the vacuum line to the ancillaries connection.
7. Install the fuel filter.
Standard > 70 mbar

1F3-18 OM600 ENGINE CONTROLS
Min. volume 150cm for 30 seconds
FUEL PUMP TEST
Notice
Before test, replace the fuel filter cartridge and fuel prefilter.
Fuel Feed Test
1. Disconnect the fuel return line (1) and seal up it with plug.
2. Insert the plastic hose (5) and put the end into the measuring
beaker (6).
3. Disconnect the vacuum line (4) from vacuum unit (engine
stop) (5) and connect the vacuum pump (7) to the vacuum
unit.
4. To avoid the engine starting, build up vacuum (approx. 500
mbar).
5. Operate the starter motor for exactly 30 seconds and
measure fuel volume in the beaker.
3

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............................................... Replace5 Gasket ................................................... Replace
6 Spring Lock Washer
7 Hexagon Nuts
8 Fuel Pump

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).
lGood
The spray pattern shows closed and well atomized.
lPoor
The spray pattern shows split, too wide and stringy.
(Repair the fuel injection nozzle)

1F3-30 OM600 ENGINE CONTROLS
REMOVAL AND INSTALLATION OF INJECTION TIMING DEVICE
Preceding Work : Removal of vacuum pump
1 Cylinder Head Cover
2 Bolt............................................................10Nm
3 Gasket ................................................... Replace
4 Fuel Injection Pump
5 Seal....................................................... Replace
6 Screw Plug.................................................30Nm
7 Oil Pan
8 Locking Pin
9 Injection Timing Device10 Washer
11 Bolt (Left-Hand Thread).............................46Nm
12 Camshaft Sprocket
13 Washer
14 12-Sided Stretch Bolt............Check, 25Nm + 90°
15 Timing Chain
1 6 Seal
17 Chain Tensioner.........................................80Nm

1F3-32 OM600 ENGINE CONTROLS
5. Remove the plug (6) and seal (5) from the fuel injection
pump and collect oil in a suitable vessel.
Installation Notice
Notice
Replace the seal.
Tightening Torque 30 Nm
6. Install the locking screw (18) into the injection pump.
Notice
Before tightening the bolts for the injection timing device
and the camshaft sprocket, always remove the locking screw
from the injection pump and reinstall the plug.
Locking Screw 601 589 05 21 00
7. Place alignment marks (arrow) on the timing chain (12) and
camshaft sprocket (15). 4. Position the no.1 cylinder at ATDC 15°.
Notice
Do not rotate the engine with camshaft sprocket bolt or
opposite direction of the engine rotation.