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OM600 ENGINE MECHANICAL 1B3-31
Assembly ProcedureNotice 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
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1B3-40 OM600 ENGINE MECHANICAL Disassembly Procedure
1. Completely drain the coolant from the radiator and cylinderblock.
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 therod(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.
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OM600 ENGINE MECHANICAL 1B3-41
8. Remove the air cleaner cover and element and thenremove 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.
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1B3-44 OM600 ENGINE MECHANICAL
22. Remove the cable channel.
23. Disconnect the cables from the glow plug sensor andcoolant 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.
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1B3-52 OM600 ENGINE MECHANICALLength(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 115mm 82mm
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
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1B3-56 OM600 ENGINE MECHANICAL
17. Coat the camshaft with oil and install the camshaft on thecylinder 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
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OM600 ENGINE MECHANICAL 1B3-61
38. Replace the O-ring of heater feed pipe and install it to thecylinder head. NoticeFor 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
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1B3-62 OM600 ENGINE MECHANICAL
43. By inserting a rod into the tensioning lever upper hole andpulling 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