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1B3-158 OM600 ENGINE MECHANICAL
CRANKSHAFT SPROCKET
Preceding Work : Removal of oil panRemoval of timing case cover
1 12-Sided Stretch Bolt (M11) .. Check, 25Nm + 90 °
2 Washer
3 Camshaft Sprocket
4 Timing Chain
5 Bearing Pin
6 Bearing Pin
7 Oil Pump
8 Oil Pump Sprocket
9 Oil Pump Chain
10 Washer 11 Bolt
............................................................ 25Nm
12 Crankshaft Sprocket
13 Crankshaft
15 Key
16 Guide Rail
17 Spring
18 Bushing
19 Tensioning Lever
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1B3-160 OM600 ENGINE MECHANICAL
10. Remove the crankshaft sprocket (12) by using a puller(20).
Puller 102 589 05 33 00
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).
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OM600 ENGINE MECHANICAL 1B3-161
Installation Procedure
1. Put the same alignment mark on the new crankshaftsprocket 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 (arrow)
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 Torque 25 Nm + 90 °
Notice Pay attention on the alignment marks and dowel pin (arrow).
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1B3-162 OM600 ENGINE MECHANICALNotice If the max. length ‘L’ of the stretch bolt exceeds 53.6mm,
replace it.
5. Fit the oil pump chain (9) on the crankshaft sprocket (12) and insert the oil pump sprocket (8) into the oil pump chain and then install it on the oil pump. Notice The curved side of the oil pump sprocket should face the oil pump.
6. Insert the woodruff key (15).
7. Install the guide rail (16). Attach the spring (17) to guide rail and to tensioning lever together onto the bearing pins (5,6). Notice Ensure that the spring is correctly located in the guide rail (arrow).
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OM600 ENGINE CONTROLS 1F3-5
VACUUM CONTROL SYSTEM TEST
2 Engine Cut-Off Valve (Ignition Key Switch)
3 Auto-locking Hub Solenoid Valve
4 Engine Stop Valve Unit
5 PLA Vacuum Unit (Idle Speed Adjustment)
6 Engine
7 Vacuum Pump830
° Thermovalve
9 Fuel Injection Pump
10 Filter with Restriction
11 Check V alve
12 Modulating Pressure Line (Automatic T/M)
Test Data
Idle Speed Increase Permissible Pressure Drop of System At least 100 rpm at approx. 500mbr
400 - 500mbar approx. 1 min.
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