Page 397 of 1463
OM600 ENGINE MECHANICAL 1B3-95
3. Remove the flywheel (3), if equipped with manual
transmission.
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.
Page 398 of 1463
1B3-96 OM600 ENGINE MECHANICAL
4. Remove the flywheel (6) and driven plate (5), if equipped
with automatic transmission.
Installation Notice
Correctly align the position of dowel pin (2).
5. Installation should follow the removal procedure in the
reverse order.
Page 399 of 1463
OM600 ENGINE MECHANICAL 1B3-97
MACHINING OF FLYWHEEL
1 Flywheel
Machining of Flywheel
Notice
Flywheels which have scorch marks, scoring or cracks in
the clutch surface should be machined by grinding or
precision-turning. If the scores or cracks are severe than
permissible specifications, replace the flywheel.
lWhen machining the clutch surface ‘A’, the mounting
surface (B) for the clutch pressure plate should also be
machined in accordance with ‘A’ to keep the distance ‘a’.
lDo not machine under ‘b’ value.
lWhen machining, fix the flywheel exactly not to exceed the
standard runout.
OM662LA
OM662LA
Max. axial runout
Distance ‘a’
New
Repair up to19.3 - 19.5 mm16.6 mm
15.6 mm
0.05 mmDistance ‘b’
Page 400 of 1463
1B3-98 OM600 ENGINE MECHANICAL
FLYWHEEL RING GEAR
Preceding Work : Removal of flywheel
1 Ring Gear
2 Flywheel3 Centering Collar Diameter
Tools Required
001 589 53 21 00 Dial Gauge
363 589 02 21 00 Dial Gauge Holder
Page 401 of 1463
OM600 ENGINE MECHANICAL 1B3-99
Diameter ‘a’ 275 + 0.5mm
Replacement Procedure
1. Drill a hole into the ring gear (1) (arrow) and snap
with a chisel.
2. Thoroughly clean the collar surfaces of ring gear.
3. Measure diameter (a) of centering collar.
Notice
If out of standard, replace the flywheel.
4. Heat up the new ring gear up to 220°C by using a
heating device.
Notice
Use temperature measuring chalk.
5. Install the new ring gear (1) onto the flywheel by using a
drift.
Page 402 of 1463
1B3-100 OM600 ENGINE MECHANICAL
6. Measure axial runout of ring gear (1) on a surface plate.
Limit Max. 0.4mm
Notice
For correct measurement, put the flywheel on the flat
measuring board.
Dial Gauge 001 589 53 21 00
Dial Gauge Holder 363 589 02 21 00
Page 411 of 1463
OM600 ENGINE MECHANICAL 1B3-109
VALVE SPRINGS (CYLINDER HEAD INSTALLED)
Preceding Work : Removal of camshaft
1 Valve Tappet
2 Valve Cotters
3 Spring Retainer4 Valve Spring.......... Check, replace if necessary
5 Timing Chain
6 Cylinder Head
Notice
Remove the valve springs only when the piston is at TDC.
Tools Required
102 589 03 40 00 Magnetic Bar
116 589 06 63 00 Magnetic Finger
603 589 01 40 00 Holding Wheel
667 589 00 31 00 Press Lever
667 589 02 63 00 Supporting Bar
Page 412 of 1463
1B3-110 OM600 ENGINE MECHANICAL
5. Using the press lever (9), press the spring retainer(3)
downward and remove the valve cotters (2) with magnetic
finger (10).
Notice
Be careful not to damage guide bore of the valve tappet.
Press Lever 667 589 00 31 00
Magnetic Finger 116 589 06 63 00
Removal & Installation Procedure
1. Remove the valve tappet (1) with magentic lifter.
Notice
Place the valve tappets upside down (open end upward)
Magentic Liter 102 589 03 40 00
2. Install the holding wheel (7) into the timing chain of camshaft
sprocket piston.
Holding Wheel 603 589 01 40 00
3. Position the piston of relevant cylinder at TDC.
4. Install the supporting bar (8).
Supporting Bar 667 589 02 63 00