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1B3 -- 16 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
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.
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OM600 ENGINE MECHANICAL 1B3 -- 31
D AEW OO M Y_2000
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 pre-
chambers 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
Ring0.3, 0.6, 1.0 mm
3. Coat the threaded ring with oil and assemble the
ring by using the serration wrench.
Tightening Torque130 N∙m (96 lb-ft)
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.
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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.
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1B3 -- 44 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
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 for-
ward and then pull out the pipe.
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1B3 -- 52 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
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.Length (L)
When NewMax. Limit (L)
M1080mm82mm
M10120mm104mm
M10115 m m117mm
OM662LA4. Coat the head contact surface of bolts and thread
with oil and insert them as shown.
-- Cylinder head bolts arrangement
Bore
1M10x80......................
2 M10 x 102......................
3M10x115......................
4M8x50......................
5M8x80......................
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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
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OM600 ENGINE MECHANICAL 1B3 -- 61
D AEW OO M Y_2000
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 link-
age.
41. Connect the fuel lines to the injection nozzles and to
the injection pump.
Tightening Torque18 N∙m (13 lb-ft)
Box Wrench Insert 000 589 77 03 00