Page 755 of 2053
OM600 ENGINE MECHANICAL 1B3 -- 3
D AEW OO M Y_2000
Cylinder Head
ApplicationNSmLb-- FtLb-- In
Prechamber Threaded Ring13096--
Cylinder Head Cover Bolt10--89
Fuel Injsction Pipe Nut1813--
Socket Bolt2518--
Fuel Filter Pipe Bolt2518--
Idle Pulley Bolt2317--
Damper Bolt2115--
Camshaft Bearing Cap Bolt2518--
Camshaft Sprocket Bolt25 / 90_18 / 90_--
Exhaust Pipe Bolt& Nut2518--
Chain Tensioner8059--
Injection Nozzle4030--
Intake Manifold Not2518--
Injection Nozzle Pipe Not1813--
Oil Dipstick Tube Bolt10--89
Screw Plug M18 x 155037--
Cam Support & Shaft
ApplicationNSmLb-- FtLb-- In
Stud Bolt12--106
Exhaust Manifold Not2518--
CamShaft Bearing Cap Bolt2518--
12-- Sided Bolt (M11)25 / 90_18 / 90_--
Timing Cover
ApplicationNSmLb-- FtLb-- In
Oil Pan Bolt -- Socket Bolt10--89
Oil Pan Bolt--M610--89
Oil Pan Bolt--M232317--
Belt Pulley Bolt3224--
Guide Pulley Bolt4--35
Guide Pulley Bracket Nut2317--
Chain Tensioner8059--
Tesioning Lever Bolt2317--
Page 764 of 2053
1F3 -- 2 OM600 ENGINE CONTROLS
D AEW OO M Y_2000
MAINTENANCE AND REPAIR
ON -- VEHICLE SERVICE
FUEL SYSTEM
1 Fuel Injection Pump
2 Fuel Feed Pump
3 Overflow Valve
4 Injection Nozzle
5 Pre -- filter6 Fuel Retrun Hose
7 Injection Line
8 Fuel Tank
9 Fuel Filter
10 Choke Orifice
Page 766 of 2053
1F3 -- 4 OM600 ENGINE CONTROLS
D AEW OO M Y_2000
FUEL TANK
1 Fuel Tank
2 The Sender of Fuel Tank
3 2-- way Check Valve
4 Pre Filter
5 Front Fuel Filler Neck
6 Rear Fuel Filler Neck
7 Fuel Supply Tube8 Fuel Return Tube
9 Filter Hose
10 Fuel Tank Hose
11 Fuel Filler Cap
12 Clip
13 Clip
Page 767 of 2053
1F3 -- 10 OM600 ENGINE CONTROLS
D AEW OO M Y_2000
VACUUM PUMP TEST
1 Fuel Filter
2 Ancillaries Connection3 Vacuum Tester
Tools Required
201 589 13 21 00 Vacuum Tester
Page 768 of 2053
OM600 ENGINE CONTROLS 1F3 -- 11
D AEW OO M Y_2000
Test Procedure
1. Remove the fuel filter (1) and keep the filter not to be
damaged from running engine.
2. Remove the vacuum line from ancillaries connection
(2).
3. Connect the vacuum tester (3) to the ancillaries con-
nection (2).
Vacuum Tester 201 589 13 21 00
4. Run the engine at idle and check vacuum pressure
after 30 sec.
Standard>70mbar
Notice
If out of standard, replace the vacuum pump.
5. Remove the vacuum tester.
6. Connect the vacuum line to the ancillaries connec-
tion.
7. Install the fuel filter.
Page 774 of 2053
OM600 ENGINE CONTROLS 1F3 -- 17
D AEW OO M Y_2000
FUEL PUMP TEST
Notice
Before test, replace the fuel filter cartridge and fuel pre-
filter.
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.
Min. volume150cm3for 30 seconds
Page 776 of 2053
OM600 ENGINE CONTROLS 1F3 -- 19
D AEW OO M Y_2000
Tools Required
617589042100 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
At Idle Speed> 0.3bar
At Full load> 0.5bar
If out of standard, replace the fuel feed pump.
Tester 617 589 04 21 00
5. Stop the engine.
6. Remove the tester.
7. Replace the seal and connect the fuel line (2).
Page 784 of 2053
OM600 ENGINE CONTROLS 1F3 -- 27
D AEW OO M Y_2000
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 Torque80 N∙m (59 lb-ft)
Notice
Nozzle needle (6) and nozzle body (7) should al-
ways be replaced as a pair.