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1B2 -- 64 M161 ENGINE MECHANICAL
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Tools Required
111 589 01 59 00 Supporting Bar
111 589 18 61 00 Lever Pusher
111 589 25 63 00 Thrust Piece
602589004000 EngineLock
DW110-- 090 Connecting Hose
DW110-- 100 Valve Tappet Remover
Removal & Installation Procedure
1. Place the supporting bar 111 589 01 59 00 (a) at the
camshaft bearing cap and tighten them with the bear-
ing cap bolt.
Installation Notice
Tightening Torque
22.5 -- 27.5 NSm
(16.6 -- 20.3 lb-ft)
2. Turn the crankshaft to position the each cylinder pis-
ton at TDC.
Mark on The Vibration Damper
Cylinder
OT1, 4
UT2, 3
Notice
DRemove the valve spring only at TDC.
DAlways rotate the crankshaft by holding the chain to
prevent from timing chain damage and tangling, and
for smooth rotation.
3. Remove the valve tappet using the valve tappet re-
mover DW110-- 100.
4. Install the connecting hose DW110-- 090 (c) to the
spark plug hole.
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M161 ENGINE MECHANICAL 1B2 -- 71
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Sectional View
1 Screw Plug
2 Ball (Nonreturn Valve)
3 Compression Spring
4 Ball Guide
5 Seal (Aluminum)
6 Filler Pin
7 Compression Spring
8 Snap Ring
9 Thrust Pin
10 Ball (Nonreturn Valve)
11 Compression Spring
12 Thrust Piece13 Chain Tensioner Housing
14 Seal
15 Timing Gear Case Cover
16 Cylinder Head
17 Bolt / Washer
18 Tensioning Rail
19 Cylinder Head Gasket
20 Timing Chain
21 Tensioning Rail Base (Sliding Surface)
A Oil Supply Hole
B Chain Tensioner Oil Storage Hole
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1B2 -- 72 M161 ENGINE MECHANICAL
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TIMING CHAIN
Preceding Work: Removal of cylinder head cover
Removal of spark plug
1Pin
2 New Timing Chain
3 Timing Chain (Used)
4 Wedge5Link
6 Center Plate
7 Outer Plate
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M161 ENGINE MECHANICAL 1B2 -- 73
D AEW OO M Y_2000
Tools Required
000589584300 ChainAssembly
111 589 03 15 00 Holding Pin
Replacement Procedure
1. Position the NO.1 cylinder to ATDC 20°.
2. Insert the holding pin 111 589 03 15 00 to the intake
and exhaust camshaft flange not to rotate camshaft.
3. Remove the chain tensioner.
4. Mount the wedges to both sides of the camshaft
sprocket as shown in the figure.
5. Cover the chain housing with a clean cloth, and grind
off the timing chain pin from the intake camshaft
sprocket with the grinder.
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1B2 -- 74 M161 ENGINE MECHANICAL
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6. Remove the outer plate (7) with the screw driver and
remove the link (5).
7. Connect the new timing chain (2) to the used timing
chain (3) with the link (5), center plate (6, thickness
1.6mm), and the outer plate (7).
8. Rotate the crankshaft in the direction if engine revo-
lution by pressing the new timing chain against the
exhaust camshaft sprocket to prevent it to be
tangled.
Notice:Be sure to remove the wedge before cranking
the engine.
9. Take out the used timing chain out from the chain
housing.
10. Connect both separators of the new timing chain
with the link (5) and the center plate (6).
11. Install the jaw (a) and the thrust piece (b) to the as-
sembly tool as shown in the figures.
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1B2 -- 76 M161 ENGINE MECHANICAL
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17. Rivet the link pin.
Check the condition and it again if necessary.
18. Install the chain tensioner.
Installation Notice
Ti
ghteningScrew Plug40 NSm
(30 lb-ft)
Tightening
TorqueTensioner
Assembly72 -- 88 NSm
(53 -- 65 lb-ft)
19. Check the camshaft timing position.
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M161 ENGINE MECHANICAL 1B2 -- 77
D AEW OO M Y_2000
TENSIONING RAIL
Preceding Work: Removal of cylinder head
1 Sliding Rail Pin
2 Sliding Rail3 Timing Gear Case Cover
Removal & Installation Procedure
1. Remove the timing gear case cover (3).
Notice:Be careful not to damage the gasket.
2. Remove the sliding rail (1) from the sliding rail pin (2).
Notice
DReplace the plastic guide (2) if it is damaged.
DFor installation, exactly align the plastic guide (2) with
the sliding rail (1).
3. Installation should follow the removal procedure in
the reverse order.
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CRANKCASE GUIDE RAIL
Preceding Work: Removal of timing gear case cover
1 Guide Rail Pin
2 Guide Rail3 Timing Gear Case Cover
Removal & Installation Procedure
1. Remove the timing gear case cover (3).
Notice:Be careful not to damage the gasket when re-
moving/installing the timing gear case cover.
2. Remove the guide rail (2) from the guide rail pin (1).
Notice:
DReplace the plastic guide (2) if damaged.
DConnect the plastic guide (2) and the guide rail (1) by
aligning them accurately when installing.
3. Installation should follow the removal procedure in
the reverse order.