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OM600 ENGINE MECHANICAL 1B3-27
Inspection Procedure
lMark poly V-belt at a clearly visible point with chalk.
lRotate the engine and check the belt.
Notice
If one of the following types of damage is found, replace
the belt.
1. Rubber lumps in the base of rips.
2. Dirt or grit ingrained.
5. Cord torn out at the side.
6. Outer cords frayed. 3. Pointed rips.
4. Belt cord visible in the base of rips.
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1B3-28 OM600 ENGINE MECHANICAL
7. Belt detached from the base of rip.
8. Splits across the rips.
9. Sections of rip torn out.
10. Splits across several rips.
11. Splits across the back.
Page 342 of 1463
1B3-40 OM600 ENGINE MECHANICAL
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
5. Remove the nut.
6. Remove the nut on the tensioning lever and insert the
rod(F12 ´ 180mm). By pushing the rod to the arrow 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. 4. Remove the bracket oil dipstick tube.
Page 364 of 1463
1B3-62 OM600 ENGINE MECHANICAL
43. By inserting a rod into the tensioning lever upper hole and
pulling the rod, install the bolt and then tighten the nut.
44. Install the oil dipstick tube bracket.
Tightening Torque 10 Nm
45. Hold the cooling fan with the counter holder and tighten
the bolt.
42. Install the poly V-belt.
Notice
Be careful not to contaminate the belt.
Tightening Torque 23 Nm
Page 365 of 1463

OM600 ENGINE MECHANICAL 1B3-63
TIMING CASE COVER
Preceding Work : Removal of the cooling fan
Rmoval of the V-belt tensioning device
Removal of the vibration damper and hub
Removal of the alternator
1 Bolt............................................................10Nm
2 Cylinder Head Cover
3 Gasket ................................................... Replace
4 Socket Bolt................................................25Nm
5 Fuel Filter
6 Square Nut
7 Oil Pan
8 Socket Bolt................................................10Nm
9 Bolt.................................................... M6 : 10Nm
M8 : 23Nm
10 Power Steering Pump
11 Bolt
12 Belt Pulley1 3 Bolt............................................................32Nm
14 Timing Case Cover
1 5 Bolt............................................................23Nm
16 Alternator Bracket
1 7 Bolt............................................................45Nm
1 8 Bolt............................................................25Nm
1 9 Bolt............................................................10Nm
20 Closing Cover
21 Socket Bolt................................................23Nm
22 Guide Pulley
2 3 Bolt.............................................................. 9Nm
24 Guide Pulley Bracket
25 Nut .............................................................23Nm
Page 366 of 1463
1B3-64 OM600 ENGINE MECHANICAL
8. Remove the guide pulley bracket (24).
Tools Required
116 589 03 07 00 Socket Wrench
Removal Procedure
1. Remove the fan clutch and cooling fan belt pulley.
2. Drain the engine oil completely.
3. Remove the oil dipstick tube bracket bolts.
4. Remove the crankshaft pulley.
5. Loosen the bolt (1) and then remove the cylinder head cover
(2) and gasket.
6. Remove the vacuum pump.
7. Detach the closing cover (20). Remove the bolts(21) and
then remove the guide pulley (22).
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OM600 ENGINE MECHANICAL 1B3-65
11. Remove the alternator bracket (16).
9. Disconnect the pipes of power steering pump and remove
the belt pulley.
Notice
Be careful not to lose the key.
10. Remove the nut and pull out the bolt and then remove the
power steering pump.
12. Remove the fuel filter.
Page 370 of 1463
1B3-68 OM600 ENGINE MECHANICAL
Tightening Torque25 Nm 5. Install the flange, vibration damper and crankshaft belt
pulley.
Notice
Replace front radial seal if necessary.
6. Install the alternator bracket.
25 Nm Front
Side
7. Install the alternator
Tightening TorqueUpper - 25 Nm
Low - 25 Nm
8. Install the cylinder head cover.
Tightening Torque 10 Nm
9. Tighten the injection pump mounting bolts.
Tightening Torque 23 Nm