Page 318 of 1463
1B3-16 OM600 ENGINE MECHANICAL
16. Remove the power steering pump lines.
Notice
Completely drain the fluid.
17. Disconnect the fuel feed line with prefilter from the feed
pump on injection pump.
18. Vehicle with automatic transmission.
Remove the hydraulic lines (19, 20) from oil cooler (2).
19. Disconnect the engine harness.
20. Disconnect the preheating time relay cable.
Page 333 of 1463
OM600 ENGINE MECHANICAL 1B3-31
Assembly Procedure
Notice
In case the prechambers are reused, inspect the
prechambers thoroughly, if the ball pin by heat and fire is
broken, it can not be used.
1. Clean the sealing surface of the prechamber.
2. Insert the prechamber into the cylinder head at the same
time aligning the cam on the collar of the prechambers with
the slots in the cylinder head.
Notice
If the spacer rings are fitted to the prechambers, the spacer
rings should be replaced with rings of the same thickness.
Thickness of Spacer Ring 0.3, 0.6, 1.0 mm
3. Coat the threaded ring with oil and assemble the ring by
using the serration wrench.
Tightening Torque 130 Nm
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 343 of 1463
OM600 ENGINE MECHANICAL 1B3-41
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 exhaust
manifold.
11. Remove the duct bracket from the cylinder head.
12. Unscrew the intake duct mounting bolts onto the intake
manifold.
13. Separate the connecting rod from the control lever.
Page 346 of 1463
1B3-44 OM600 ENGINE MECHANICAL
22. Remove the cable channel.
23. Disconnect the cables from the glow plug sensor and
coolant temperature sensor.
24. Remove the heater pipe bracket from the oil filter.
25. Pry off the clamp and push the heater feed pipe forward
and then pull out the pipe.
Page 354 of 1463
1B3-52 OM600 ENGINE MECHANICAL
Length(L)
Assembly Procedure
1. Replace the cylinder head gasket.
2. Install the cylinder head onto the crankcase.
Notice
Align the cylinder head holes with the guide pins.
3. Measure the length(L) of cylinder head bolts.
Notice
If the max. length is exceeded, replace the bolts.
Thread Dia. Max. Limit(L)
M10
M10
M1080mm
102mm
115mm82mm
104mm
117mm when new
4. Coat the head contact surface of bolts and thread with oil
and insert them as shown.
- Cylinder head bolts arrangement
Bore
1 ...........................................M10
× 80
2 ...........................................M10
× 102
3 ...........................................M10
× 11 5
4 ........................................... M 8
× 50
5 ........................................... M 8
× 80
OM662LA
Page 358 of 1463
1B3-56 OM600 ENGINE MECHANICAL
17. Coat the camshaft with oil and install the camshaft on the
cylinder head to be TDC mark(arrow) upward.
18. Measure the axial end play of the camshaft.
End Play 0.06 - 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 numerical
sequence.
Tightening Torque 25 Nm
Notice
Tighten the No. 1 bolts(light arrow) first and then tighten
the No. 2 bolts(dark arrow) stage by stage.
OM662LA
OM661LA
Page 363 of 1463
OM600 ENGINE MECHANICAL 1B3-61
38. Replace the O-ring of heater feed pipe and install it to the
cylinder head.
Notice
For installation, clean the hole.
39. Install the bracket of heater feed pipe to the oil filter.
40. Install the fuel pipe and the accelerator control linkage.
41. Connect the fuel lines to the injection nozzles and to the
injection pump.
Box Wrench Insert 000 589 77 03 00
Tightening Torque 18 Nm