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OM600 ENGINE MECHANICAL 1B3-91
Notice If the max. length of bolts(L) exceed 63.8mm, replace them.
19. Coat the new crankshaft with engine oil and place it on the crankcase.
20. Install the crankshaft bearing caps according to marking and tighten the bolts.
Tightening Torque 55 Nm + 90 °
Notice Install from No. 1 cap.
22. Rotate the crankshaft with hand and check whether it rotates smoothly.
23. Measure crankshaft bearing axial clearance.
Clearance 0.100 - 0.245mm
Notice If the clearance is out of standard, adjust the axial clearance of crankshaft bearing by replacing the thrust washers.
Dial Gauge 001 589 53 21 00
Dial Gauge Holder 363 589 02 21 00
Notice The same thickness of thrust washers should be installed on both sides of the thrust bearing.
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1B3-92 OM600 ENGINE MECHANICAL
28. Remove the connecting rod bearing cap.
29. Install the piston.
30. Rotate the crankshaft by hand and check whether it rotatessmoothly.
31. If the bearings are damaged,
- replace the oil presser relief valve. - clean the oil pump and oil filter housing carefully and
replace the hose if necessary. Notice After assembling the engine, check the camshaft timing, adjust the start of fuel injection and check the TDC sensorbracket setting.
32. Fill oil and run the engine and then check the oil pressure and oil level. Notice Install the original oil filter element and then change the engine oil and oil filter element after 1,000 - 1,500km.
27. Measure the radial clearance (L) of the connecting rod
bearing. Example) Measured value ‘J’ = 47.700mm
Measured value ‘K’ = 47.653mm
Clearance ‘L’ = 0.047mm
Radial Clearance ‘L’0.026 - 0.068mm
Notice If the clearance is out of standard, adjust the radial clearance of connecting rod bearing by replacing theconnecting rod bearing shells.
26. Measure connecting rod bearing journal diameter (K).
Notice Refer to measurement of the crankshaft bearing journal
diameter.
24. Insert the new connecting rod bearing shells into theconnecting rod and connecting rod bearing cap and tighten
the 12-sided stretch bolts (11).
25. Measure inner diameter of connecting rod bearing.
Tightening Torque 40 Nm + 90 °
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OM600 ENGINE MECHANICAL 1B3-95
3. Remove the flywheel (3), if equipped with manualtransmission. Installation Notice Correctly align the position of dowel pin (2).
Tools Required 602 589 00 40 00 Engine Lock Removal & Installation Procedure
1. Install the engine lock.
Engine Lock 602 589 02 40 00
2. Remove the 12-sided stretch bolts (4). Installation Notice
Tightening Torque 45 Nm + 90 °
Notice If the length ‘L’ of bolts exceeds 22.5mm, replace the bolts.
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OM600 ENGINE MECHANICAL 1B3-107
Removal & Installation Procedure
1. Remove the nuts (8) uniformly and then remove the washer(7), exhaust manifold (9) and gasket. Installation Notice
Check the stud bolt (6) for damage and replace if necessary.
Tighten Torque 12 Nm
Tighten Torque 25 Nm
Tools Required
102 589 03 40 00 Magnetic Bar
116 589 06 63 00 Magnetic Finger
601 589 01 59 00 Assembling Board
601 589 02 59 00 Supporting Bridge
667 589 00 31 00 Press Lever
Replace the gasket and tighten the nuts (8).
2. Install the assembling board (11) to the cylinder head with 4 cylinder head blots (10).
Assembling Board 601 589 01 59 00
3. Pull out the valve tappet (1) with magnetic bar (12). NoticePlace the valve tappets upside down (open end upward).
Magnetic Bar 102 589 03 40 00
4. Install the supporting bridge (13) on the cylinder head (5).Supporting Bridge 601 589 02 59 00
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1B3-138 OM600 ENGINE MECHANICAL
6. Check the timing.New
After approx. 20,000km ATDC 11.33
°
ATDC 12 °
Notice If timing is out standard, the camshaft should be checked for wear and the timing chain for stretch. If a difference of more than 4 ° exists, the timing chain should be replaced.
7. Replace the gasket and install the cylinder head cover.
Tightening Torque 10 Nm
Measurement Procedure
1. Remove the cylinder head cover.
2. Rotate the engine in the direction of engine rotation until the intake valve of NO. 1 cylinder is completely closed. The cam lobe faces up (arrow). Notice Do not rotate the engine at the bolt of the crankshaft sprocket. Do not rotate the engine in the opposite directionof engine rotation. If do, this will cause serious measuringerrors.
3. Install the dial gauge holder and dial gauge (7) with theextension (8) to the cylinder head and position the tracer pin (9) onto the valve tappet (intake valve of cylinder NO.1)with a preload of min. 3mm. Notice The tracer pin should be positioned exactly vertical.
Dial gauge Holder 363 589 02 21 00Dial Gauge 001 589 53 21 00Extension 366 589 00 21 05
4. Set the dial gauge to ‘0’.
5. Rotate the engine further in direction of rotation until the dial gauge has moved back by 2mm (valve lift) to 1mm.
Tools Required 001 589 53 21 00 Dial Gauge363 589 02 21 00 Dial Gauge Holder366 589 00 21 05 Extension
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OM600 ENGINE MECHANICAL 1B3-143
5. Tighten the camshaft bearing cap bolts acccording toinstallation order.
6. Install the camshaft sprocket to be aligned the markings of the camshaft / camshaft bearing cap (arrow). Notice Align the alignment marks on the timing chain and sprocket.
Tightening Torque 25 Nm
Notice
Tighten the No. 1 bolts (light arrow) by one revolution in stages first and then tighten the No.2 bolts (dark arrow).
OM 661LA
OM 662LA
7. Tighten the camshaft sprocket bolt.
Tightening Torque 25Nm + 90 °
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1B3-144 OM600 ENGINE MECHANICAL
10. Check the TDC marking of OT on the crankshaft.8. Install the chain tensioner.
Tightening Torque 80 Nm
Notice Replace the seal.Before installation, by pumping in the oil approx. 10 times, fill the oil.
9. Remove the engine lock.
Notice If max. length ‘L’ of the 12-sided bolt exceeds 53.6mm,
replace it.
Page 415 of 1574
1B3-150 OM600 ENGINE MECHANICALIn this position, the marking on camshaft / camshaft bearing cap (arrow) must also be aligned. If the markings are notaligned, the timing chain must be re-set and the injectionpump timing has to be set.
14. Position the no.1 cylinder at TDC.
11. Place the fitting tool (8) onto the chain link and rivet thechain pins one by one.
12. Check the riveting of chain pins and re-rivet if necessary.
13. Remove the wire.
Tightening Torque 35 - 40 Nm