C 320 CL (203.764) V6-3.2L (112.946) (2004)
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The notches of the camshafts must point toward the inner V.
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It must be possible to easily insert the two locking plates. If this is not possible, Set the basic position of camshafts.
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The copper plates of the timing chain must be aligned with the scribe marks on the camshaft sprockets.
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Owing to the unevenly long paths of the timing chain it may be necessary to crank the engine as many as 14 times till the copper plates get
aligned with the scribe marks on the camshaft sprockets.
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On vehicles equipped with an air pump, the combination valve must be unbolted before the right locking plate is inserted.
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Installation: Replace Gasket of combination valve.
6
Remove chain tensioner
7
Remove camshaft position sensor
8
Crank engine in direction of rotation until the link for separating the timing chain is easily accessible
NOTE: Timing chain is separated one chain link next to the copper plate (on right). See new timing chain.
9
Remove camshaft bearing bridge on right
10
Install holding bush (3) onto camshaft on right
NOTE: Screw in bolts (4) only until they touch.
11
Attach retaining devices (1, 2) for timing chain to right and left cylinder head
12
Separate timing chain
CAUTION: Cover over timing case recess with a clean cloth. Parts which have dropped into the timing case recess, must be removed.
NOTE: To pull out the old timing chain, connect the old chain to the new timing chain.
Install
13
Draw in new timing chain
NOTE: To draw in the new timing chain, crank engine in direction of rotation at the crankshaft.
14
Remove retaining devices (1, 2) for timing chain at right and left cylinder head
15
Rivet new timing chain
16
Crank engine in direction of rotation
17
Check timing of engine
18
Take off holding bush (3) on right camshaft
19
Install camshaft bearing bridge on right
20
Install camshaft position sensor
21
Installing chain tensioner
22.1 Install fan shroud
NOTE: Not Model 211.061/065/070, 230.475.
22.2 Install electric fan
23
Install cylinder head covers
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Air cleaner mounted on vehicle.
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Air cleaner positioned at engine side.
24
Install spark plugs
25
Connect ground cable
DANGER:
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Risk of accident from vehicle starting off by itself when engine running. Risk of injury as working around the engine during startup
or while running may result in contusions and burns
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Secure vehicle to prevent it from moving.
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Wear closed and tight-fitting work clothes.
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Do not grasp hot or rotating parts.
26
Run engine and inspect for leaks.
AR05.10-P-7601AV Replace the Timing Chain
Replace Timing Chain