Page 688 of 2053
OM600 ENGINE MECHANICAL 1B3 -- 139
D AEW OO M Y_2000
CAMSHAFT
Preceding Work : Removal of cylinder head cover
1 Bolt 25N∙m (18 lb-ft) ......................
2 Washer
3 Camshaft Bearing Cap
4 Camshaft
5 Dowel Pin
6 Locking Washer
7 Timing Chain8 Cylinder Head
9OilPan
10 Camshaft Sprocket
11 Was h er
12 12-- Sided Bolt (M11)
Check, 25N∙m (18 lb-ft)+90_ ...............
13 Gasket Replace..........................
14 Chain Tensioner 80N∙m (59 lb-ft) ............
Page 691 of 2053
1B3 -- 142 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
7. Remove the camshaft bearing cap.
8. Pull off the camshaft.
Notice
Be careful not to miss front locking washer.
9. Pull out the locking washer.
Notice
Check the condition of locking washer and replace if
necessary.
Installation Procedure
1. Insert the locking washer.
2. Check the valve tappet and ensure that tappet
moves smoothly.
3. Coat the camshaft with oil and install the camshaft
onto the cylinder head so that the TDC marking (ar-
row) is positioned upward vertically.
4. Install the camshaft bearing caps according to
markings(1, 2, 3 etc.).
Page 693 of 2053
1B3 -- 144 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
Notice
If max. length ’L’ of the 12-- sided bolt exceeds
53.6mm, replace it.
8. Install the chain tensioner.
Tightening Torque80 N∙m (59 lb-ft)
Notice
Replace the seal.
Before installation, by pumping in the oil approx. 10
times, fill the oil.
9. Remove the engine lock.
10. Check the TDC marking of OT on the crankshaft.
Page 695 of 2053
1B3 -- 146 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
Notice
Always install the chain tensioner to be filled with oil.
Place the chain tensioner in engine oil up to over the
collar on the hexagon headwith the thrust pin facing
up. Slowly push down the thrust pin as far as the
stop 7~10 times with the aid of a press or a column
drill
Faulty chain tensioners should be replaced com-
pletely.
3 Screw Plug
4 Aluminum Gasket
5Ball
6 Ball Guide
7 Compression Spring
8 Compression Spring
9 Housing
10 Thrust Pin11 Valve Disc
12 O -- Ring
13 Snap Ring
14 Compression Spring
15 Filler
A Feed Bore from Cylinder Head
BToOilPan
Page 705 of 2053
1B3 -- 156 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
TIMING CASE COVER GUIDE RAIL
Preceding Work : Removal of cylinder head cover
1 Bearing Pin
2 Bearing Pin
3 Guide Rail
4 Oil Pump Chain5 Crankshaft
6Spring
7 Bushing
8 Tensioning Lever
Page 706 of 2053
OM600 ENGINE MECHANICAL 1B3 -- 157
D AEW OO M Y_2000
Removal Procedure
1. Pull out the tensioning lever (8) together with the
spring (6) and guide rail (3) far enough until the ten-
sioning lever has moved passed the oil pump chain
(4) and is resting against the crankshaft (5)
2. Pull the tensioning lever (8) off the bearing pin (2)
and carefully remove the spring (6). Remove the
tensioning lever (8) together with the spring (6) and
bushing (7).
3. Remove the guide rail (3).
Installation Procedure
1. Install the guide rail (3). Attach the spring (6) to the
guide rail and to the tensioning lever (8).
Notice
Ensure that the spring is correctly located in the
guide rail (arrow).
2. Push the guide rail, spring, bushing and tensioning
lever together onto the bearing pin (1, 2).
Page 707 of 2053
1B3 -- 158 OM600 ENGINE MECHANICAL
D AEW OO M Y_2000
CRANKSHAFT SPROCKET
Preceding Work : Removal of oil pan
Removal of timing case cover
1 12-- Sided Stretch Bolt (M11)
Check, 25N∙m (18 lb-ft)+90_ ...............
2 Washer
3 Camshaft Sprocket
4 Timing Chain
5 Bearing Pin
6 Bearing Pin
7OilPump
8 Oil Pump Sprocket
9 Oil Pump Chain10 Washer
11 Bolt 25N∙m (18 lb-ft) ......................
12 Crankshaft Sprocket
13 Crankshaft
15 Key
16 Guide Rail
17 Spring
18 Bushing
19 Tensioning Lever
Page 708 of 2053
OM600 ENGINE MECHANICAL 1B3 -- 159
D AEW OO M Y_2000
Special Tools
116 589 07 15 00 Drift
102589053300 Puller
Removal Procedure
1. Pull out the tensioning lever (19) together with the
spring (17) and guide rail (16) far enough until the
tensioning lever has passed the oil pump chain (9)
and is resting against the crankshaft (13).
2. Pull out tensioning lever (19), spring (17) and bush-
ing (18) from the bearing pin (6).
3. Pull out the guide rail (16).
4. Remove the bolt(11) and then remove the washer
(10), oil pump chin (9) and sprocket (8).