Camshaft Timing Chain, Removing And Installing: Installing

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Requirements: 

• The crankshaft is at "TDC" ; the V-shaped cut-out on the three-layer chain sprocket points in an imaginary vertical line -arrows- centered between the camshaft chain sprockets.
• Three-layer chain sprocket locked with the :T10531/2  .

• Camshaft chain sprockets locked at "TDC" using the :T40271/1  and :T40271/2  .

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• The marks -arrows- must be positioned opposite each other.

-- Engage the camshaft timing chain with the painted links -arrows- on the camshaft pins as shown.

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-- Camshaft timing chain on intake camshaft; mount the exhaust camshaft and the three stage chain sprocket.

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• The painted chain links must align with the markings on the chain sprockets -arrows-.

-- Insert the glide rail -2- and tighten the guide pin -1-.

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-- Insert the guide track -1- and tighten the bolts -arrows-.

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

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-- Lock the pretension of the exhaust camshaft using the :T40266  or :T10567  in the direction of -arrow A- and pull the :T40271/1  from the chain sprocket splines in direction of -arrow B-.

-- Remove the exhaust camshaft in the direction of -arrow C- until the timing chain touches the glide rail -3-.

-- Hold the camshaft in this position, insert the tensioning rail -1- and tighten the guide pin -2-.

-- Remove the :T40271/1  .

-- Lock the intake camshaft pretension using the :T40266  or :T10567  in the direction of -arrow A-, pull the :T40271/2  from the chain sprocket splines in direction of -arrow B- and bring the camshaft into the rest position.

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-- Remove the :T40271/2  .

-- Install the bolts -arrows- and tighten them. Tightening specification -item  ) OVERVIEW - CYLINDER HEAD - Bolt.

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-- Coat the holes -arrows- with engine oil.

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-- Check if the adapter sleeve -1- is installed.

-- Carefully attach the bearing mount, without tilting.

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-- Install the bolts -1 to 6- all the way by hand.

-- Remove the :T40267  .

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-- Tighten the bearing bracket bolts. Refer to BEARING BRACKET - TIGHTENING SPECIFICATIONS AND SEQUENCE .

-- Install the oil pump chain.

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-- Insert the chain tensioner -2- and tighten the guide pin -1-.

-- Remove the :T40011  . At the same time wire clip must make contact in the opening on the oil pan upper section -arrow-.

-- Checking adjustment:

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• The painted chain links must align with the markings on the chain sprockets -arrows-.

-- Install the control valves -item  ) OVERVIEW - CYLINDER HEAD - Control Valve.

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-- Install the :T10531/4  and the :T10531/3  .

-- To ensure that the vales do not make contact when starting, carefully rotate the engine at least two full revolutions.

TIP:

Due to the ratio, the painted chain links no longer match up after the engine has been turned.

-- Remove the knurled nut and the turning over tool.

Further installation is performed in reverse order of removal, while noting the following:

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

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

-- After working on the chain drive adapt the chain length. Refer to Vehicle Diagnostic Tester.