Camshaft Timing Chain, Removing And Installing: Removing

-- Remove the upper timing chain cover. Refer to UPPER TIMING CHAIN COVER, REMOVING AND INSTALLING .

TIP:

The control valves have left-hand thread.

-- Remove the left and right control valves using the Assembly Tool -1- in the direction of -arrow-.

Fig 1: Removing Control Valve

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Depending on the version of the control valve use one of the listed tools:

• : T10352 
• : T10352/1 
• : T10352/2 
• : T10352/3 
• : T10352/4 

-- Remove the bolts -arrows- and bearing bracket.

Fig 2: Identifying Bolts

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• Carefully remove the bearing bracket without tilting it.

-- Remove the bearing mount.

-- Turn the vibration damper in the "TDC" position.

Fig 3: Identifying Counterhold Tool And Markings

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• The notch on the vibration damper and the marking on the lower cover for timing chain must be opposite one another -arrow-.
• The markings -1- on the camshaft chain sprockets must point upward.

TIP:

The combination of the : T40263  , : T40314  and 24 mm socket are better suited than the : T10355A  for positioning the vibration damper.

-- Remove the lower timing chain cover. Refer to LOWER TIMING CHAIN COVER, REPLACING .

-- Check the "TDC point" again.

-- Press the oil pump chain tensioner bracket in direction of -arrow- and lock with : T40011  .

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-- Remove the bolt -1- and the chain tensioner -2-.

-- Remove the bolts -arrows-.

Fig 4: Identifying Bolts

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-- Remove the bolt -arrow-.

Fig 5: Identifying Bolt

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-- Install the : T40243  -arrows-.

Fig 6: Identifying Lever T40243 -Arrows-, Installation

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-- Press the chain tensioner circlip -1- together and hold it.

-- Slowly press and hold the : T40243  in direction of -arrow-.

-- Secure the chain tensioner with the : T40267  .

Fig 7: Securing Chain Tensioner With T40267

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-- Remove the : T40243  .

-- Bolt the : T40271/2  to the cylinder head and push the chain sprocket splines in direction of -arrow 2-. If necessary, turn the intake camshaft with an : T40266  in direction of -arrow 1-.

Fig 8: Identifying Camshaft Clamp T40271/2 And Assembly Tool T40266

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-- Bolt the : T40271/1  on the cylinder head.

Fig 9: Checking T40271/1 Installation Position

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• The help of a second technician is necessary for the following step.

-- Hold the exhaust camshaft with the : T40266  in direction of -arrow A-. Remove the bolt -1- and guide the tensioning rail -2- downward.

-- Turn the exhaust camshaft clockwise in direction of -arrow A- until the : T40271/1  can be pushed in the chain sprocket splines -C-, in direction of -arrow B-.

-- Remove the camshaft timing chain guide rail -1- by unlocking the latch -arrow- with a screwdriver and pushing the guide rail forward.

Fig 10: Removing Guide Rail

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-- Remove the bolts -arrows- and remove the chain tensioner -1-.

Fig 11: Bolts And Chain Tensioner

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-- Remove the bolts -1- and remove the camshaft timing chain glide rail -2-.

Fig 12: Removing Glide Rail

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-- Remove the camshaft timing chain from the camshaft sprockets and hang it on the camshaft pins -arrows-.

Fig 13: Camshaft Timing Chain And Camshaft Sprocket

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-- Remove the chain tensioner -1- for the balance shaft timing chain.

Fig 14: Chain Tensioner And Balance Shaft Timing Chain

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-- Remove the bolts -1-. Remove the tensioning rail -2- and the glide rails -3 and 4-.

Fig 15: Identifying Tensioning Rail And Glide Rails

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-- Loosen the adjusting bolt -A- and remove the tensioning pin -B-.

Fig 16: Identifying Camshaft Timing Chain And Drive Chain

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-- Remove the oil pump drive timing chain to remove the three stage chain sprocket. (Shown on a vehicle with a generator).

-- Remove the camshaft timing chain and drive chain for the balance shaft.