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1B2-24 M161 ENGINE MECHANICAL5. Disconnect the vent hose from the A/C bracket.
6. Unscrew all the mounting bolts (arrows) and remove the A/C bracket and the gasket. Installation Notice
7. Clean the sealing surface.
8. Replace the gasket with new one.
9. Installation should follow the removal procedure in the reverse order.
10. Check the oil leakage by operating the engine after installation.
Tightening Torque 22.5 - 27.5 Nm
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M161 ENGINE MECHANICAL 1B2-27
1 Upper Nut
2 Hydraulic Installer.................62~93 Nm
3 Lower Nut ............................. 28~47 Nm
Removal and Installation Procedure
1. Unscrew the upper nut(1) on engine mounting and remove the engine. Installation Notice
3. Installation should follow the removal procedure in the reverse order.
Tightening Torque 62 - 93 Nm
2. Unscrew the lower nut(3) and remove the hydraulic engine mounting insulator. Installation Notice
Tightening Torque 28 - 47 Nm
Notice If the insulator is spotted with oil, replace the hydraulic
insulator assembly.
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1B2-30 M161 ENGINE MECHANICAL TENSIONING DEVICE Preceding Work : Removal of tensioning device shock absorber
1 Bolt (M8 x 75, 2 pieces) +Washer .......................................... 22.5-27.5 Nm
2 Bolt (M8 x 25, 1 pieces) + Washer .......................................... 22.5-27.5 Nm
Removal & Installation Procedure
1. Turn the stud bolt to counterclockwise.
2. Insert the pin (111 589 01 15 00) into the hole in tensioning arm.
3. Unscrew the bolts (1, 2) and remove the tensioning device.
Installation Notice
4. Installation should follow the removal procedure in the reverse order. 3 Tensioning Device
4 Stud bolt
5 Tensioning Arm
Tightening Torque 22.5 - 27.5 Nm
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M161 ENGINE MECHANICAL 1B2-31
TENSIONING DEVICE SHOCK ABSORBER
1 End Cover
2 Nut .................................................40.5-49.5 Nm
3 Tensioning Pulley
4 Bolt (M8 X 25) + Washer ................22.5-27.5 Nm
Removal & Installation Procedure
1. Remove the end cover (1).
2. Remove the nut (2) and remove the tensioning pulley (3). Installation Notice 5 Tensioning Device
6 Bolt (M8 X 35) + Washer
................22.5-27.5 Nm
7 Shock Absorber
Tightening Torque 40.5 - 49.5 Nm
3. Unscrew the bolts (4,6) and remove the shock absorber (7). Installation Notice
Tightening Torque 22.5-27.5 Nm
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1B2-36 M161 ENGINE MECHANICAL Removal & Installation Procedure
1. Remove the intake air duct.Installation Notice
2. Remove the ignition coil cover. Installation Notice
3. Remove the spark plug connector and ignition cable. Notice Release 3 screws from the ignition cover and remove the cover for M161 Engine coil.
Tightening Torque 9 - 11 Nm
Tightening Torque 9 - 10 Nm
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M161 ENGINE MECHANICAL 1B2-37
CYLINDER HEAD FRONT COVER Preceding Work : Removal of cylinder head coverRemoval of thermostat housing assembly
Removal of engine hanger bracket
Removal & Installation Procedure
1. Disconnect the camshaft adjuster connector and removethe camshaft adjuster (E23 engine only). Installation Notice
Tightening Torque 9 - 11 Nm
1 Bolt (M6 X 16, 3 pieces) ......................... 9-11 Nm
2 Camshaft Adjuster
3 Bolt (M8 X 35, 2 pieces) .................22.5-27.5 Nm
4 Bolt (M6 X 22, 6 pieces) ......................... 9-11 Nm
5 Front Cover (E23 : M161.973) 6 Front Cover (E20 : M161.943)
7 Sleeve
8 O-ring .................................................... Replace
9 Thermostat Housing
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1B2-38 M161 ENGINE MECHANICAL
2. Remove the cylinder head front cover.Installation Notice
Tightening Torque (3) 22.5 - 27.5 Nm
Tightening Torque (4) 9 - 11 Nm
Apply the sealant at the mating surface of the cylinder head
and the front cover.
3. Remove the O-ring. Installation Notice Replace the O-ring with new one and apply the sealant.
4. Installation should follow the removal procedure in the reverse order.
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1B2-40 M161 ENGINE MECHANICAL
Tools Required 617 589 00 10 00 Wrench Socket
116 589 2 0 33 00 Sliding Hammer
116 589 01 34 00 Threaded Bolt
001 589 66 21 00 Torque Wrence
104 589 00 40 00 Holder
Removal & Installation Procedure
1. Rotate the crankshaft so that the piston of number 1 cylinder is at ATDC 20.
2. Put the pin into the camshaft bearing cap (number 1, 6).
Pin 111 589 03 15 00
3. Put the alignment marks (arrows) on the timing chain and camshaft sprocket.
4. Remove the chain tensioner. Installation Notice
Tightening Torque 72 - 88 Nm
Tightening Torque 1st step 18 - 22 Nm
2nd step 85
° - 95 °
5. Remove the exhaust camshaft sprocket.
Installation Notice Notice The flange bolt is designed to be used only once, so always replace with new one.