Page 353 of 2053
1B2 -- 60 M161 ENGINE MECHANICAL
D AEW OO M Y_2000
7. Remove the bearing cap, and remove the intake
and the exhaust camshaft.
Installation Notice
Tightening Torque
22.5 -- 27.5 NSm
(16.6 -- 20.3 lb-ft)
Notice:Check the numbers on the bearing cap not to be
mixed up.
8. Apply the engine oil on the valve tappet and cam-
shaft bearing.
9. Installation should follow the removal procedure in
the reverse order.
Notice:
DBase circle of cam should cantact with the valve tap-
pet.
DInstall the camshaft bearing caps according to the
numbers on the cylinder head cast and bearing cap.
10. Check the camshaft timing position.
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1B2 -- 62 M161 ENGINE MECHANICAL
D AEW OO M Y_2000
Tools Required
111 589 03 15 00 Holding Pin
Inspection Procedure
1. Position the NO.1 cylinder piston to ATDC 20°by
turning the crankshaft.
Notice:When the ATDC 20°mark on vibration damper
is aligned with timing gear case cover, the intake and ex-
haust cam of cylinderwill make the slope to the center
and will face up. In this way, the insert hole in NO.1 and
NO.4 camshaft bearing capwill match in line with the
flange hole for camshaft sprocket.
2. Check the timing as below procedure;
-- Check if the holding pin 111 589 03 15 00 can be
inserted into the NO.1 and NO.4 bearing cap hole.
-- At this condition, check if the ATDC 20°mark on
vibration damper aligns with the marker on the tim-
ing gear case.
Adjustment Procedure
1. Position the NO.1 cylinder to ATDC 20°.
2. Remove the chain tensioner.
3. Remove the exhaust camshaft sprocket.
4. Adjust the timing position with inserting the holding
pin 111 589 03 15 00 into the NO.1 and NO.4 cam-
shaft bearing cap hole and flange hole while rotating
the camshaft by using wrench.
5. Install the chain to the intake camshaft sprocket.
6. Install the chain to the exhaust camshaft sprocket
and tighten the bolt.
Installation Notice
Ti
ghteningTo rque
1st step: 18 -- 22 NSm
(13 -- 16 lb-ft)
TighteningTorque
2nd step: 60°±5°
The sprocket bolt is designed to be used only once,
so replace with new one.
7. Install the chain tensioner.
Installation Notice
Ti
ghteningScrew Plug40 NSm
(30 lb-ft)
Tightening
TorqueTensioner
Assembly72 -- 88 NSm
(53 -- 65 lb-ft)
8. Check the camshaft timing.
Page 357 of 2053
1B2 -- 64 M161 ENGINE MECHANICAL
D AEW OO M Y_2000
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.
Page 362 of 2053
M161 ENGINE MECHANICAL 1B2 -- 69
D AEW OO M Y_2000
4. Carefully unscrew the screw plug (1), and remove the
seal (2).
Notice
DFor the removal of screw plug, be careful that it can
be jumped out due to the force of compression
spring.
DRemove the screw plug only when the seal and com-
pression spring are damaged.
5. Carefully remove the filler pin (3), compression spring
(4), snap ring (5), and the thrust pin (6).
6. Remove the chain tensioner housing (7) and the seal
(8).
Installation Procedure
1. Connect the thrust pin (6) and the snap ring (5) to the
chain tensioner housing (7).
Notice:When connecting the thrust pin, push in the
thrust pin far enough so that it doesn’t protrude at the
chain tensioner housing.
2. Install the chain tensioner housing (7), thrust pin (6),
snap ring (5), and the seal (8).
Installation Notice
Tightening Torque
72 -- 88 NSm (53 -- 65 lb-ft)
3. Insert the compression spring (4) with the filler pin (3)
into chain tensioner housing.
Page 363 of 2053
1B2 -- 70 M161 ENGINE MECHANICAL
D AEW OO M Y_2000
4. Lightly apply the grease to the seal (2) and install the
screw plug (1).
Installation Notice
Tightening Torque
40 NSm (30 lb-ft)
5. Check for leaks by operating the engine.
Page 368 of 2053
M161 ENGINE MECHANICAL 1B2 -- 75
D AEW OO M Y_2000
12. Place the outer plate (7, thickness 1.2mm) inside
the thrust piece (b).
13. Install the chain assembly 000 589 58 43 00 above
the link and tighten the spindle (c) until a block is felt.
14. Place the chain assembly 000 589 58 43 00.
15. Replace the thrust piece (b) as shown in the figure.
16. Install the chain assembly 000 589 58 43 00 to the
link pin and tighten the spindle (c).
Installation Notice
Tightening Torque
30 NSm (22 lb-ft)
Page 369 of 2053
1B2 -- 76 M161 ENGINE MECHANICAL
D AEW OO M Y_2000
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.
Page 372 of 2053
M161 ENGINE MECHANICAL 1B2 -- 79
D AEW OO M Y_2000
Tools Required
111 589 03 15 00 Holding Pin
Removal & Installation Procedure
1. Position the number 1 cylinder to ATDC20°guide rail.
2. Install the holding pin 111 589 03 15 00 into the no.1
and no.6 bearing cap hole.
3. Remove the chain tensioner.
Installation Notice
Ti
ghteningScrew Plug40 NSm
(30 lb-ft)
Tightening
TorqueTensioner
Assembly72 -- 88 NSm
(53 -- 65 lb-ft)
4. Unscrew the bolt (1) and remove the guide rail.
Installation Notice
Tightening Torque
9--11NSm (80 -- 97 lb-in)
5. Installation should follow the removal procedure in
the reverse order.