Page 585 of 2053

1B3 -- 36 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
Setting (with cylinder head installed)
1. Remove the prechamber of No. 1 cylinder.
2. Position the piston of No.1 cylinder at BTDC 10.
3. Install the measuring device into the prechamber
bore and position the dial gauge with a preload of
5mm.
Dial Gauge 001 589 53 21 00
Depth Gauge 601 589 07 21 00
4. Slowly rotate the crankshaft in the direction of en-
gine rotation until the large pointer on the dial gauge
stops (TDC position).
Notice
The position of TDC is when the large pointer on the
dial gauge is stopped before moving back.
5. Remove the reinstall the measuring device and
position the dial gauge scale at ’0’.
6. Slowly rotate the crankshaft in the direction of en-
gine rotation until the dial gauge has moved back
(counterclockwise) by 3.65mm.
7. Insert fixing device into the sensor bracket.
Notice
The pin on the vibration damper must engage into
the slot of the fixing device.
Fixing Device 667 589 01 21 00
8. If the pin does not engage, adjust the setting of the
sensor bracket by removing and tightening of the
sensor bracket bolts.
Tightening Torque10 N∙m(89lb-in)
Notice
The timing mark on the damper must be positioned
at ATDC 20.
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OM600 ENGINE MECHANICAL 1B3 -- 37
D AEW OO M Y_2000
CYLINDER HEAD
1 Fuel Injection Pipe 18N∙m (13 lb-ft) ..........
2 Cylinder Head
3 Gasket Replace..........................
4 Bolt 25N∙m (18 lb-ft) ......................
5 Washer
6 Clamp
7 Heater Feed Pipe
8Bolt
9 Washer
10 Bolt
11 Nozzle Washer Replace...................
12 Fuel Injection Nozzle 35 -- 40 N∙m(26--30 lb-ft)
13 Hexagon Socket Bolt 25 N∙m (18 lb-ft) ......
14 Washer
15 Bolt 25 N∙m (18 lb-ft) .....................
16 Cylinder Head Bolt See Table..............
17 Cylinder Head Cover
18 Bolt 10 N∙m (89 lb-in) .....................
19 Gasket
20 Camshaft21 Camshaft Drive Sprocket Replace...........
22 Washer
23 Bolt(12-- Sided) 25N∙m (18 lb-ft) + 90_ .......
24 Sliding Rail
25 Sliding Rail Pin
26 Sliding Rail Pin
27 Chain Tensioner 80 N∙m (59 lb-ft) ...........
28 Gasket Replace..........................
29 Cooling Fan Check.......................
30 Hexagon Socket Bolt 45 N∙m (33 lb-ft) ......
31 Tensioning Lever
32 Bolt 25 N∙m (18 lb-ft) .....................
33 Bolt
34 Nut 23 N∙m (17 lb-ft) ......................
35 Fuel Filter
36 Turbo Charger
37 Intake Duct
38 Gasket Replace..........................
39 Intake Manifold
Page 587 of 2053
1B3 -- 38 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
Tightening Torque
Cylinder Bolts (12-- sided socket head)stage 110 N∙m(89lb-in)y()
(Engine cold)stage 235 N∙m (26 lb-ft)
stage 3180_
M8 Cylinder Head Bolts25 N∙m (18 lb-ft)
Tools Required
000 589 77 03 00 Box Wrench Insert
001589650900SocketWrenchInsert
102 589 03 40 00 Magnetic Bar
116 589 02 34 00 Threaded Pin
116 589 03 07 00 T Type Socket Wrench
116 589 20 33 00 Sliding Hammer
601589001000CylinderHeadBoltWrench
602 589 00 40 00 Engine Lock
603 589 00 40 00 Counter Holder
Tightening Sequence for Cylinder Head
Bolts
OM 662LA Engine
OM 661LA Engine
Page 588 of 2053
OM600 ENGINE MECHANICAL 1B3 -- 39
D AEW OO M Y_2000
Notice
The cylinder head may only be removed when the
engine has cooled down. The cylinder head is re-
moved together with the exhaust manifold. As the
cylinder head bolts undergo a permanent tightening.
They require to be replaced if they exceed the maxi-
mum lengthes indicated in the table.
Thread DiaLength(L)
When NewMax. Length(L)
M1080mm82mm
M10120mm104mm
M10115mm117 m m
The twelve -- sided socket head bolts are tightened
with each stages of torque and torque angle.
It is not necessary to retighten the cylinder head
bolts at the 1000~1500km inspection or after
1000~1500km of repairs.
Page 589 of 2053
1B3 -- 40 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
Disassembly Procedure
1. Completely drain the coolant from the radiator and
cylinder block.
2. Remove the cooling fan shroud.
3. Hold the fan with counter holder and remove the bolt
and then remove the cooling fan.
Notice
Keep the fan in vertical position.
Counter Holder 603 589 00 40 00
4. Remove the bracket oil dipstick tube.
5. Remove the nut.
6. Remove the nut on the tensioning lever and insert
the rod(F12’ 180mm). By pushing the rod to the ar-
row direction, pull back the bolt.
7. Push the tensioning lever to the opposite direction to
release the spring tension and remove the poly V--
belt.
Page 590 of 2053
OM600 ENGINE MECHANICAL 1B3 -- 41
D AEW OO M Y_2000
8. Remove the air cleaner cover and element and then
remove the air cleaner housing.
9. Remove the oil return hose and plug.
Notice
Cover them to prevent chips from coming into.
10. Unscrew the EGR pipe mounting bolts onto the ex-
haust manifold.
11. Remove the duct bracket from the cylinder head.
12. Unscrew the intake duct mounting bolts onto the in-
take manifold.
13. Separate the connecting rod from the control lever.
Page 591 of 2053
1B3 -- 42 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
14. Pull out the accelerator control linkage.
15. Remove the fuel injection line(1) from the fuel injec-
tion nozzle(12).
Box Wrench Inset 000 589 77 03 00
16. Remove the fuel injection line from the fuel injection
pump.
Box Wrench Insert 000 589 77 03 00
17. Remove the bracket mounting bolts and then re-
move the fuel injection line(1).
Page 592 of 2053
OM600 ENGINE MECHANICAL 1B3 -- 43
D AEW OO M Y_2000
18. Disconnect the booster hose connected to intake
manifold.
19. Remove the intake manifold and gasket.
20. Remove the cylinder head cover and gasket with the
blow-- by gas hose.
21. Disconnect the glow plug cables.