Page 237 of 1463
1B2-48 M161 ENGINE MECHANICAL
Tools Required
601 589 03 43 00 Sleeve
Removal & Installation Procedure
1. Unscrew the bolts (1) and (5) and remove the closing cover
by pulling the rear cover lug (arrows).
Notice
Be careful not to damage the oil pan gasket.
2. Clean the sealing surface of the crankcase and the rear
sealing cover.
3. Check the radial shaft seal and replace it if necessary.
4. Apply the Loctite 573 to the rear cover sealing surface.
5. Apply the engine oil to the dust lip of the radial shaft seal.
Notice
Do not use the grease.
6. Using the special tool, press the radial shaft seal and the
rear cover.
7. Tighten the rear cover bolt (1) and then tighten the oil pan
bolt (5) as specified and remove the special tool.
Installation Notice
Seal Assembler 601 589 03 43 00
Tightening Torque(Bolt 1,5) 9 - 11 Nm
Page 239 of 1463
1B2-50 M161 ENGINE MECHANICAL
Components
Service Data Standard
Permissble Deviation of The Vibration DamperRadial Runout
Axial Runout0.6 mm
0.6 mm
Tools Required
103 589 00 33 00 Puller
001 589 65 09 00 Socket Wrench Insert
001 589 74 21 00 Puller
000 589 88 33 00 Torque Wrench
602 589 00 40 00 Engine Lock
Removal & Installation Procedure
1. Adjust the piston of number 1 cylinder to the TDC.
1 Center Bolt (M18 x 50)
2 Center Bolt Washer
3 Vibration Damper and Pulley Assembly
4 Key
5 Crankshaft Front Seal
6 Timing Gear Case Cover
7 Crankshaft Sprocket (Camshaft Driven)
8 Crankshaft Sprocket (Oil pump Driven)
9 Crankshaft
10 Oil Pan
11 Oil Pan Gasket
12 Oil Pan Mounting Bolt (M6 x 22)
Page 240 of 1463
M161 ENGINE MECHANICAL 1B2-51
Engine Lock 602 589 00 40 00
2. Remove the start motor and install the engine lock to the
flywheel ring gear.
3. Remove the center bolt.
Installation Notice
4. Remove the vibration damper assembly using the puller.
5. Installation should follow the removal procedure in the
reverse order.
Notice
If possible, don’t separate the vibration damper and the
pulley.Tightening Torque1st step 180 - 220 Nm
2nd step + 90°
Page 241 of 1463
1B2-52 M161 ENGINE MECHANICAL
CRANKSHAFT FRONT RADIAL SEAL
Preceding Work : Removal of belt pulley and vibration damper
1 Center Bolt (M18 x 50)
............................... 1st step 200-220 Nm
2nd step 90° +10°
2 Center Bolt Washer
3 Sleeve (Special Tool)
4 Crankshaft Front Seal
5 Key
Tools Required
601 589 03 14 00 Sleeve
Replacement Procedure
1. Remove the radial seal with a screw driver.
Notice
Use a clean cloth not to damage the radial seal mounting
hole and the crankshaft.
5. Remove the sleeve and install the belt pulley and the
vibration damper.
6. Check for leaks while operating the engine.2. Coat the radial sealing lip with engine oil.
3. Using the sleeve, assemble the radial seal .
4. Align the sleeve groove and the woodruff key and tighten
the center bolt until the center bolt and the damper disk
stop in the movement.
Installation Notice
Tightening Torque1st step 200 - 220Nm
2nd step 90° + 10°
Page 246 of 1463

M161 ENGINE MECHANICAL 1B2-57
Installation Notice
lMake sure the crankshaft bearing cap properly seated
in place in the crankcase side. When perfectly
installed, the projected part (arrow) locates in the left
side (intake manifold side).
lAssemble so that the projected part of the cap and
crankcase face the same direction.
Removal & Installation Procedure
1. Unscrew the connecting rod bearing cap bolt and remove
the bearing cap.
Installation Notice
2. Unscrew the crankshaft bearing cap bolts and separate
the upper and lower bearing shells and thrust washers.
Installation Notice
lRemove the bearing cap from front (pulley side) to
rear.
lMake sure that the upper and lower bearing shells do
not change each other and coat with engine oil.
lThe oil grooves (arrows) in the thrust washers must
face outward and insert the thrust bearing into the
bearing cap.
lThere are five kinds of thrust washers by thickness.
Select the proper washer when repaired.
3. Remove the crankshaft.
4. Installation should follow the removal procedure in the
reverse order.
5. After completion of the installation, check for the rotating
condition of the crankshaft.
lMake sure that the upper and lower bearing shells do
not change each other.
lCoat the bearing shell with engine oil.
lInstall the bearing cap according to the consecutive
number.
Part No. : 601 030 00 622.15 mm
Part No. : 601 030 01 622.20 mm
Part No. : 601 030 02 622.25 mm
Part No. : 601 030 03 622.30 mm
Part No. : 601 030 04 622.40 mm
Tightening Torque 40 Nm + 90°
Tightening Torque 55 Nm + 90°
Page 249 of 1463
1B2-60 M161 ENGINE MECHANICAL
FLYWHEEL/DRIVEN PLATE
Preceding Work : Removal of manual or automatic transmission
1 Flywheel Mounting Bolt
(M10 x 22, 8 pieces) ................ 1st Step 45 Nm
2nd Step 90°+10°
2 Plate3 Driven Plate (A/T)
4 Dowel Pin
5 Flywheel (M/T)
Service Data Standard (Stretch Bolt)
Nominal Size
Stretch Side Diameter
Bolt Length
Tightening TorqueM x 1.5
8.5 - 0.2 mm
8.0 mm
21.8 - 22.2 mm-
When New
Min. Diameter
When NewD
d
L
1st step 50 Nm, 2nd step 90°
Page 250 of 1463
M161 ENGINE MECHANICAL 1B2-61
Removal & Installation Procedure
1. Unscrew the stretch bolt.
Installation Notice
Sectional View
1 Oil Pan
2 Cover
3 Radial Seal
4 Bolt
5 Crankshaft
6 Dowel Pin
7 Washer (Thickness : 3.5 mm)
8 Washer
9 Bolt
10 Front Drive Plate
11 Rear Drive Plate
12 Rivet
13 Segment
14 Ring Gear
lReplace the bolt when the stretch side diameter (d) of
the flywheel mounting bolt is less than 8.0mm.
lFor the stretch bolt tightening, keep the socket wrench
and Tommy-bar to be 90° and tighten as specified.
2. Remove the flywheel for manual transmission vehicles,
or the driven plate (3), and plate (2) for Auto. transmission
vehicle.
3. Installation should follow the removal procedure in the
reverse order.Tightening Torque1st step 45 Nm
2nd step90°+5°
Page 252 of 1463
M161 ENGINE MECHANICAL 1B2-63
Removal & Installation Procedure
1. Turn the crankshaft and position the n0.1 cylinder piston at
ATDC 20°.
Notice
Turn the crankshaft in the direction of engine rotation.
2. Remove the cylinder head front cover.
3. Put the alignment marks (arrows) on the camshaft sprocket
and the timing chain.
4. Insert the insert pin into the no.1 and no.6 bearing cap hole
on camshaft to secure intake and exhaust camshaft.
5. Remove the chain tensioner.
6. Unscrew the exhaust sprocket bolt and remove the exhaust
camshaft sprocket.
Installation Notice
Tightening Torque1st step 20 Nm
2nd step 90°
Notice
The flange bolt is designed to be used only once, so always
replace with new one.