Page 702 of 2053
OM600 ENGINE MECHANICAL 1B3 -- 153
D AEW OO M Y_2000
Tools Required
115 589 02 34 00 Sliding Hammer
116 589 20 33 00 Threaded Pin
Removal Procedure
1. Removal the cylinder head cover.
2. Pull off the tensioning lever (7) and remove from the
spring (15).
3. Pry off the closing cover (14) and remove the bolt
(13) and then remove the guide pulley (12).
4. Place alignment marks (arrow) on the timing chain
(16) and camshaft sprocket (4).
5. Remove the camshaft sprocket.
Page 705 of 2053
1B3 -- 156 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
TIMING CASE COVER GUIDE RAIL
Preceding Work : Removal of cylinder head cover
1 Bearing Pin
2 Bearing Pin
3 Guide Rail
4 Oil Pump Chain5 Crankshaft
6Spring
7 Bushing
8 Tensioning Lever
Page 707 of 2053
1B3 -- 158 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
CRANKSHAFT SPROCKET
Preceding Work : Removal of oil pan
Removal of timing case cover
1 12-- Sided Stretch Bolt (M11)
Check, 25N∙m (18 lb-ft)+90_ ...............
2 Washer
3 Camshaft Sprocket
4 Timing Chain
5 Bearing Pin
6 Bearing Pin
7OilPump
8 Oil Pump Sprocket
9 Oil Pump Chain10 Washer
11 Bolt 25N∙m (18 lb-ft) ......................
12 Crankshaft Sprocket
13 Crankshaft
15 Key
16 Guide Rail
17 Spring
18 Bushing
19 Tensioning Lever
Page 709 of 2053
1B3 -- 160 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
5. Place alignment marks (arrow) on the timing chain
(4) and crankshaft sprocket (12).
6. Remove the woodruff key(15).
7. Place alignment marks (arrow) on the timing chain
(4) and camshaft sprocket (3).
8. Remove the chain tensioner.
9. Remove the bolt (1) and then remove the washer (2)
and camshaft sprocket (3).
10. Remove the crankshaft sprocket (12) by using a
puller (20).
Puller 102 589 05 33 00
Page 710 of 2053
OM600 ENGINE MECHANICAL 1B3 -- 161
D AEW OO M Y_2000
Installation Procedure
1. Put the same alignment mark on the new crankshaft
sprocket as in the old sprocket.
Notice
Check the timing chain, camshaft sprocket, injection
pump timing sprocket, oil pump chain and oil pump
sprocket for wear and replace if necessary.
2. Install the new crankshaft sprocket (12) by using a
drift (21).
Notice
Align the groove of sprocket and woodruff key (ar-
row) exactly.
Drift 116 589 07 15 00
3. Fit the timing chain (4) on the crankshaft sprocket
(12).
Notice
Align the alignment marks (arrow) on the chain and
sprocket.
4. Install the camshaft sprocket (3).
Tightening Torque25 N∙m (18 lb-ft) + 90_
Notice
Pay attention on the alignment marks and dowel pin
(arrow).
Page 728 of 2053
OM600 ENGINE MECHANICAL 1B3 -- 179
D AEW OO M Y_2000
Measurement Procedure
1. Measure height ’A’.
Limit142.5 mm
Notice
If the height is less than 142.5mm, replace the cylin-
der head.
2. Insert the valve (1) and measure valve arrears ’a’.
Valve Arrears ’a’0.1 -- 0.7 mm
Notice
If out of standard, machine the valve seat.
3. Install the prechamber and measure protrusion ’C’.
Protrusion ’C’7.6 -- 8.1mm
4. Assemble the engine and check the valve timing.
Page 734 of 2053
OM600 ENGINE MECHANICAL 1B3 -- 185
D AEW OO M Y_2000
Removal & Installation Procedure
1. Remove the timing case cover.
2. By inserting a round bar (6) approx. 0.7m from the
back to the front side through the oil gallery, knock
out the steel balls (1,3).
Notice
Be careful not to damage the bores of the steel
balls.
6 Shop -- made tool
3. Thoroughly clean the bores of steel balls.
4. Place the steel ball (3) onto the drift (7) with a little
grease and position to the bore and then tap until the
drift stops.
Drift 601 589 08 15 00
5. Place the steel ball (1) onto the drift (7) with a little
grease and position to the bore and then tap until the
drift stops.
Drift 601 589 08 1500
6. Warm up the engine and check the oil for leaks.
Page 755 of 2053
OM600 ENGINE MECHANICAL 1B3 -- 3
D AEW OO M Y_2000
Cylinder Head
ApplicationNSmLb-- FtLb-- In
Prechamber Threaded Ring13096--
Cylinder Head Cover Bolt10--89
Fuel Injsction Pipe Nut1813--
Socket Bolt2518--
Fuel Filter Pipe Bolt2518--
Idle Pulley Bolt2317--
Damper Bolt2115--
Camshaft Bearing Cap Bolt2518--
Camshaft Sprocket Bolt25 / 90_18 / 90_--
Exhaust Pipe Bolt& Nut2518--
Chain Tensioner8059--
Injection Nozzle4030--
Intake Manifold Not2518--
Injection Nozzle Pipe Not1813--
Oil Dipstick Tube Bolt10--89
Screw Plug M18 x 155037--
Cam Support & Shaft
ApplicationNSmLb-- FtLb-- In
Stud Bolt12--106
Exhaust Manifold Not2518--
CamShaft Bearing Cap Bolt2518--
12-- Sided Bolt (M11)25 / 90_18 / 90_--
Timing Cover
ApplicationNSmLb-- FtLb-- In
Oil Pan Bolt -- Socket Bolt10--89
Oil Pan Bolt--M610--89
Oil Pan Bolt--M232317--
Belt Pulley Bolt3224--
Guide Pulley Bolt4--35
Guide Pulley Bracket Nut2317--
Chain Tensioner8059--
Tesioning Lever Bolt2317--