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M161 ENGINE MECHANICAL 1B2 -- 45
D AEW OO M Y_2000
CRANKSHAFT
Preceding Work: Removal of engine
Removal of cylinder head
Removal of timing gear case cover
Removal of crankcase sealing rear cover
Removal of oil pan
Removal of baffle plate
Removal of oil pump
1 Bearing Cap Bolt (M8 X 55 -- 10 pieces)
1ststep55NSm (41 lb-ft) .................
2nd step 90°rotation added
2 Bearing Cap
3 Upper Main Bearing4 Lower Main Bearing
5 Upper Thrust Bearing
6 Lower Thrust Bearing
8 Crankshaft
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M161 ENGINE MECHANICAL 1B2 -- 55
D AEW OO M Y_2000
Removal & Installation Procedure
1. Turn the crankshaft and position the no.1 cylinder pis-
ton 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 holding pin 111 589 03 15 00 into the no.1
and no.6 bearing cap hole on camshaft to secure in-
take and exhaust camshaft.
5. Remove the chain tensioner.
6. Unscrew the exhaust sprocket bolt and remove the
exhaust camshaft sprocket.
Installation Notice
Ti
ghteningTo rque
1st step: 18 -- 22 NSm
(13 -- 16 lb-ft)
TighteningTorque
2nd step: 60°±5°
Notice:The flange bolt is designed to be used only
once, so always replace with new one.
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1B2 -- 56 M161 ENGINE MECHANICAL
D AEW OO M Y_2000
7. Unscrew the bolt (3) from the armature (4) and re-
move the roll pin, and remove the armature.
Installation Notice
Tightening Torque
35 NSm (26 lb-ft)
8. Unscrew the nut (6) and remove the seal cover (7).
Installation Notice
Tightening Torque
60 -- 70 NSm (44 -- 52 lb-ft)
Notice:Put the locking slot of nut toward armarture.
9. Take off the timing chain from intake camshaft
sprocket.
10. Remove the adjuster piston (9) and conical spring
(10) from intake camshaft sprocket.
11. Unscrew the bolt (11) and remove the flange shaft.
Installation Notice
Ti
ghteningTo rque
1st step: 18 -- 22 NSm
(13 -- 16 lb-ft)
TighteningTorque
2nd step: 60°±5°
Notice:The flange bolt is designed to be used only
once, so always replace with new one.
12. Installation should follow the removal procedure in
the reverse order.
13. Check and adjust the camshaft timing.
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1B2 -- 58 M161 ENGINE MECHANICAL
D AEW OO M Y_2000
CAMSHAFT
Preceding Work: Removal of cylinder head cover
Removal of camshaft adjust actuator and cylinder head front cover
1 Bolt (M7 X 13, 3 pieces)
1stStep18--22NSm (13-- 16 lb-ft) ..........
2nd Step 60°±5°Rotation Added
2 Exhaust Camshaft Sprocket
3 Timing Chain
4a Intake Camshaft Spocket (E20)4b Camshaft Adjuster and Camshaft
Sprocket (E23)
5 Bearing Cap Bolt (20 pieces)
22.5-- 27.5 NSm (16.6--20.3 lb-ft) .............
6 Camshaft Bearing Cap
7 Wrench
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M161 ENGINE MECHANICAL 1B2 -- 59
D AEW OO M Y_2000
Removal & Installation Procedure
1. Turn the crankshaft and position the no.1 cylinder pis-
ton at ATDC20°.
2. Put the alignment marks (arrows) on the camshaft
sprocket and the timing chain.
3. Remove the chain tensioner.
Installation Notice
Ti
ghteningScrew Plug40 NSm
(30 lb-ft)
Tightening
To r q u eTensioner
Assembly72 -- 88 NSm
(53 -- 65 lb-ft)
4. Remove the exhaust camshaft sprocket.
Notice
Ti
ghteningTo rque
1st step: 18 -- 22 NSm
(13 -- 16 lb-ft)
TighteningTorque
2nd step: 60°±5°
Notice:The sprocket bolt is designed to be used only
once, so always replace with new one.
5. Take off the timing chain from intake camshaft
sprocket, and secure it not to fall down into the timing
gear case.
6. Using the wrench (7), turn the camshaft until there is
no resistence in camshaft bearing area.
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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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M161 ENGINE MECHANICAL 1B2 -- 61
D AEW OO M Y_2000
CAMSHAFT TIMING POSITION
Preceding Work: Removal of cylinder head cover
Removal of cylinder head front cover
1 Holding Pin 111 589 03 15 00
2 Intake Camshaft Sprocket
3 Camshaft Bearing Cap
4 Timing Chain
5 Exhaust Camshaft Sprocket6 Bolt (M7 X 13, 3 pieces)
1ststep18--22NSm (13-- 16 lb-ft) ...........
2ndstep60°±5°rotation added
7StratePin
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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.