fuel filter SSANGYONG MUSSO 1998 Workshop Owner's Guide

OM600 ENGINE CONTROLS 1F3-5
VACUUM CONTROL SYSTEM TEST
2 Engine Cut-Off Valve (Ignition Key Switch)
3 Auto-locking Hub Solenoid Valve
4 Engine Stop Valve Unit
5 PLA Vacuum Unit (Idle Speed Adjustment)
6 Engine
7 Vacuum Pump8 30° Thermovalve
9 Fuel Injection Pump
10 Filter with Restriction
11 Check Valve
12 Modulating Pressure Line (Automatic T/M)
Test Data
Idle Speed Increase
Permissible Pressure Drop of SystemAt least 100 rpm at approx. 500mbr
400 - 500mbar approx. 1 min.

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).

1F3-28 OM600 ENGINE CONTROLS
Tools Required
001 589 65 09 00 Socket Wrench Insert
000 589 00 68 00 Cleaning Set
Repair Procedure
1. Clamp the nozzle holder (1) in a vice and remove the nozzle
tensioning nut (8).
Notice
Use protective jaws for clamping.
2. Disassemble the fuel injection nozzle.
Socket Wrench Insert 001 589 65 09 00
3. Clean the nozzle needle (6) and nozzle body (7) with an
abradant.
4. Clean the nozzle seat with cleaning cutter.
Cleaning Set 000 589 00 68 00
5. Immerse nozzle needle (6) and nozzle body (7) in filtered
diesel fuel. When the nozzle body is held vertical, the weight
of the nozzle needle must cause it to slide down toward the
nozzle needle seat.
6. Assemble the injection nozzle so that the tip of the thrust
(4) pin is facing toward the nozzle holder.
Tightening Torque 80 Nm
Notice
Nozzle needle (6) and nozzle body (7) should always be
replaced as a pair.