Camshaft Timing Chain, Removing And Installing: Removing

-- Remove the bearing bracket. Refer to BEARING BRACKET, REMOVING AND INSTALLING .

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-- Vibration damper, version 1. Refer to Fig 1: turn the crankshaft on the vibration damper using the : T40263  -6-, : T40314  -1- and 24 mm socket -adapter- until the camshafts is at "TDC".

-- Vibration damper, version 2. Refer to Fig 1: use an offset open-end wrench - 24 mm to turn the crankshaft at the vibration damper so far -arrow-, that the camshafts are set to "OT".

• The mark -3- from the camshaft chain sprockets -2 and 5- and the mark -4- on the cylinder head cover must align.

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

-- Check the "TDC point" again.

-- Disengage the tension spring wire clip -3- from the oil pan upper section -arrow-.

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-- Remove the guide pin -2- and the chain tensioner.

-- Remove the drive chain -1- for the oil pump from the three-layer chain sprocket and let hang at the : T10531/6  .

-- Remove the bolts -arrows-.

-- Install the : T40243  on the cylinder head -lower arrows-.

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

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

• This will push back the chain tensioner.

TIP:

The chain tensioner is lubricated with oil and can only be pushed back slowly by applying constant pressure.

-- Lock the chain tensioner with the : T40435  .

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-- Remove the : T40243  .

-- Install the : T40271/2  on the cylinder head.

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-- Push the camshaft positioning tool in the splines of the chain sprocket in direction of -arrow B-.

-- If required, turn the intake camshaft with the : T40427  slightly back and forth in direction of -A arrows-.

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

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

-- Hold the exhaust camshaft using the : T40427  . Remove the guide pin -1- and remove the tensioning rail -2- downward.

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

-- Release the retainer -arrow- with a screwdriver and push the guide rail -1- off toward the front.

-- Remove the guide pin -1- and the guide rail -2-.

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-- Remove the camshaft timing chain from the camshaft sprockets and remove downward.