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1B3 -- 50 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
45. Remove the vacuum line from the vacuum pump.
46. Disconnect the vacuum pipe from thermo valve.
47. Remove the socket bolts(13) of the chain box.
T Type Socket Wrench 116 589 03 07 00
Magnetic Bar 102 589 03 40 00
48. Remove the cylinder head bolts in numerical se-
quence.
Cylinder Head Bolt Wrench 601 589 00 10 00
OM662LA
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OM661LA
49. Remove the cylinder head(2) and gasket(3).
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1B3 -- 52 OM600 ENGINE MECHANICAL
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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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OM600 ENGINE MECHANICAL 1B3 -- 53
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5. Tighten the cylinder head bolts to specified torque
and torque angle.
Stage 115 N∙m (11 lb-ft)
Stage 235 N∙m (26 lb-ft)
Torque angle90_
Wait f or10 minutes
Torque angle90_
OM 661LAOM 662LA
6. Install the socket bolts in the chain box.
Tightening Torque25 N∙m (18 lb-ft)
7. Connect the vacuum pipe to the thermo valve.
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1B3 -- 56 OM600 ENGINE MECHANICAL
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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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1B3 -- 60 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
33. Replace the gasket and install the cylinder head
cover.
Tightening Torque10 N∙m(89lb-in)
34. Install the blow-- by hose.
35. Connect the wires to the coolant temperature sen-
sor and the glow plug sensor.
36. Replace the intake manifold gasket.
37. Install the intake manifold.
Tightening Torque25 N∙m (18 lb-ft)
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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
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OM600 ENGINE MECHANICAL 1B3 -- 63
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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 generator
1 Bolt 10N∙m (89 lb-in) .....................
2 Cylinder Head Cover
3 Gasket Replace..........................
4 Socket Bolt 25N∙m (18 lb-ft) ................
5 Fuel Filter
6 Square Nut
7OilPan
8 Socket Bolt 10N∙m (89 lb-in) ...............
9 Bolt M6 : 10N∙m (89 lb-in) ................
M8 : 23N∙m (17 lb-ft)
10 Power Steering Pump
11 Bolt
12 Belt Pulley13 Bolt 32N∙m (24 lb-ft) ......................
14 Timing Case Cover
15 Bolt 23N∙m (17 lb-ft) ......................
16 Generator Bracket
17 Bolt 45N∙m (33 lb-ft) ......................
18 Bolt 25N∙m (18 lb-ft) ......................
19 Bolt 10N∙m(89lb-in) .....................
20 Closing Cover
21 Socket Bolt 23N∙m (17 lb-ft) ................
22 Guide Pulley
23 Bolt 9N∙m(80lb-in) .......................
24 Guide Pulley Bracket
25 Nut 23N∙m (17 lb-ft) .......................