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1B2-64 M161 ENGINE MECHANICAL
7. Unscrew the bolt (3) from the armature (4) and removethe roll pin, and remove the armature. Installation Notice
Tightening Torque 35 Nm
8. Unscrew the nut (6) and remove the seal cover (7). Installation Notice
Tightening Torque 60 - 70 Nm
Notice Put the locking slot of nut toward armarture.
9. Take off the timing chain from intake camshaft sprocket.
10. Remove the cover (7), adjuster piston (9) and conical spring (10) from intake camshaft sprocket.
11. Unscrew the bolt (11) and remove the flange shaft. Installation Notice
Tightening Torque 1st step 20 Nm
2nd step + 95
°
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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M161 ENGINE MECHANICAL 1B2-65
CAMSHAFT SPROCKET BOLT Intake Flange Shaft Bolt Notice The sprocket bolts are designed to be used only once, so always replace with new one. Exhaust Camshaft Sprocket Bolt Notice The sprocket bolts are designed to be used only once, so always replace with new one.
C. M7 x 13 Collar Bolt Torx-T30e. 6.8 mm
16. Flange Shaft
18. Control Piston
22. Intake Camshaft
E. M7 x 13 Collar Bolt Torx-T30
e. 6.8 mm
13a. Camshaft Sprocket
22a. Exhaust Camshaft
Tightening Torque
1st step 20 Nm
2nd step + 90
°
Tightening Torque 1st step 20 Nm
2nd step + 90
°
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1B2-66 M161 ENGINE MECHANICAL CAMSHAFT Preceding Work : Removal of cylinder head coverRemoval of camshaft adjust actuator and cylinder head front cover
1 Bolt (M7 X 13, 3 pieces) .........1st Step 18-22 Nm
2nd Step 90 °+ 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 Nm
6 Camshaft Bearing Cap
7 Wrench (Special Tool)
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M161 ENGINE MECHANICAL 1B2-67
Tools Required
000 589 01 10 00 Box Wrench Insert104 589 01 01 00Spanner
Removal & Installation Procedure
1. Turn the crankshaft and position the no.1 cylinder piston at ATDC20 °.
2. Put the alignment marks (arrows) on the camshaft sprocket
and the timing chain.
3. Remove the chain tensioner. Installation Notice
Tightening Torque 40 Nm
72 - 88 Nm
Screw Plug
Tensioner Assembly
4. Remove the exhoust camshaft sprocket. Installation Notice
Tightening Torque 1st step 35 - 45 Nm
2nd step 85
° - 95 °
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 secute 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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1B2-68 M161 ENGINE MECHANICAL
7. Remove the bearing cap, and remove the intake and theexhaust camshaft. Installation Notice
Tightening Torque 22.5 - 27.5 Nm
Notice Check the numbers on the bearing cap not to be miked up.
8. Apply the engine oil on the valve tappet and camshaft bearing.
9. Installation should follow the removal procedure in the reverse order. Notice
Base circle of cam should cantact with the valve tappet.
Install 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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