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 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 596 of 2053
1B3 -- 46 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
30. Rotate the crankshaft and set the no.1 cylinder at
TDC.
Notice
Do not rotate the crankshaft to the opposite direc-
tion of engine revolution.
31. Place alignment marks on the camshaft gear and
timing chain.
32. Ensure that the camshaft and the bearing cap mark-
ing are aligned.
33. Remove the starter motor and install the engine lock
onto the flywheel ring gear.
Engine Lock 602 589 00 40 00
Page 597 of 2053
1B3 -- 48 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
38. Remove the camshaft bearing cap bolts according
to the numerical sequence.
Notice
Remove the No.1 bolts first and then remove the
No. 2 bolts. Do not remove the bolts at a time com-
pletely but remove them step by step evenly or cam-
shaft can be seriously damaged.
OM662LA
OM661LA
39. Remove the bearing caps and then pull out the cam-
shaft(20) upward.
Notice
Be careful not to miss the locking washer.
40. Remove the locking washer.
Notice
Check the locking washer and replace if necessary.
Page 604 of 2053
OM600 ENGINE MECHANICAL 1B3 -- 55
D AEW OO M Y_2000
12. Install the idle pulley and fit the closing cover.
Tightening Torque25 N∙m (18 lb-ft)
13. Insert the tensioning lever(31) and install the spring.
14. Install the damper.
Tightening Torque23 N∙m (17 lb-ft)
Notice
Insert the tensioning lever bolts onto the mounting
hole.
15. Insert the locking washer.
16. Inspect the valve tappet and check that the tappet
moves smoothly.
Page 605 of 2053
1B3 -- 56 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
17. Coat the camshaft with oil and install the camshaft
on the cylinder head to be TDC mark(arrow) up-
ward.
18. Measure the axial end play of the camshaft.
End Play0.06 -- 0.21mm
Notice
If out of standard, adjust it with the proper thickness
of locking washer.
19. Install the bearing caps on the camshaft according
to the number on the caps.
20. Tighten the bearing cap bolts according to the nu-
merical sequence.
Tightening Torque25 N∙m (18 lb-ft)
Notice
Tighten the No. 1 bolts(light arrow) first and then
tighten the No. 2 bolts(dark arrow) stage by stage.
OM662LA
OM661LA
Page 608 of 2053
OM600 ENGINE MECHANICAL 1B3 -- 59
D AEW OO M Y_2000
27. Replace the seal and then install the chain tension-
er.
Tightening Torque80 N∙m (59 lb-ft)
28. Remove the engine lock.
29. Insert the nozzle washer into the hole to face round
part downward.
30. Install the fuel injection nozzle.
Tightening Torque40 N∙m (30 lb-ft)
31. Connect the fuel hose.
32. Install the cable channel and connect the cables to
glow plugs.
Page 624 of 2053
OM600 ENGINE MECHANICAL 1B3 -- 75
D AEW OO M Y_2000
Sectional View
3 Socket Bolt
4 Crankshaft Belt Pulley
5 Vibration Damper
6Bolt
7 Washer
8 Straight Pin9Hub
11 Radial Seal
12 Timing Gear Case Cover
13 Key
14 Crankshaft Sprocket
16 Crankshaft
Notice
The mounting position of vibration damper is fixed by
straight pin (8).
Tools Required
602 589 00 40 00 Engine Lock
103589003000 Puller