Right Cylinder Head Camshaft, Removing And Installing
Special tools and workshop equipment required
- Puller - Toothed Belt Pulley T10320
- Camshaft Fitting Tool T40094A
- Camshaft Fitting Tool T40095
- Camshaft Fitting Tool T40096
- Pry Lever 80-200
- Wrench - Pin Type 3036
- Hand drill with plastic brush attachment
- Protective eyewear
- Sealant.
Removal
-- Remove the affected camshaft timing chain from the camshaft, refer to CAMSHAFT TIMING CHAINS, REMOVAL FROM CAMSHAFTS .
-- Remove the right cylinder head cover. Refer to RIGHT CYLINDER HEAD COVER, REMOVING AND INSTALLING .
Follow all the rules of cleanliness. Refer to FUEL SUPPLY, INJECTION SYSTEM AND CHARGING SYSTEM CLEAN WORKING CONDITIONS .
-- Remove the union nuts -1- and -2-.
-- Remove the screws -arrows- and then move the fuel rail to the side with the hoses still attached.
-- Free up the wiring harness -arrow- using the Pry Lever 80-200.
Ignore -items 1 and 2-.
-- Loosen the guide frame bolts and nuts in the sequence -17 to 1-.
Be careful of the roller rocker lever and the adjusters when Removal the camshafts.
-- Carefully remove the bearing bracket and camshafts.
Installation
- Tightening specifications, refer to CYLINDER HEAD OVERVIEW and COOLANT PIPES OVERVIEW .
Replace the front cover in the cylinder head on the right side.
Danger of destroying the axial bearing in the bearing bracket.
- Install the camshaft as described with the Camshaft Fitting Tool T40094A.
Risk of contaminating lubricating system.
- Cover any open parts in the cylinder head.
Danger of eye injury.
- Wear protective eyewear.
-- Remove the sealant residue on the cylinder head and guide frame and the upper section of the oil pan, for example using a rotating plastic brush.
-- Clean the sealing surfaces; they must be free of oil and grease.
-- Lubricate the running surfaces of both camshafts.
Set up the Camshaft Fitting Tool T40094A as follows:
-- Install the Bracket T40094/2 in -B-.
-- Install the Bracket T40094/1 in -C-.
-- Install the exhaust camshaft -1- into the Bracket T40094/1 and Bracket T40094/2.
-- Turn the exhaust camshaft so that it can be locked with the straight-edge in the "TDC" position -arrow-.
-- Place the intake camshaft -2- into the Camshaft Fitting Tool T40094A.
- The securing pin -3- must engage in the groove on the intake camshaft.
-- Mount the Camshaft Fitting Tool T40096 onto the teeth of the intake camshaft so that one arm of the clamping device engages in one sprocket half.
-- Tension the clamping devise with the thumbwheel until the tooth faces align.
-- Push the exhaust camshaft -1- toward the intake camshaft -arrows- until the splines engage.
-- Make sure the camshaft is positioned correctly:
- The notches -arrows- on both camshafts must face upward.
-- Place the bearing brackets -1- on both camshafts.
- All the camshaft bearings must lie on the camshafts.
-- Mount the Camshaft Fitting Tool T40095 onto the camshafts by aligning the pliers and tension with the knurled nuts -2-.
-- Tension the camshafts by tightening the nuts -3-.
-- Make sure the alignment pins -arrows- are in the cylinder head. Insert any missing alignment pins.
Note the expiration date of the sealing compound.
-- Cut the tube nozzle at the front marking (nozzle diameter: approximately 1.5 mm).
The guide frame is shown without the camshafts.
-- Turn the guide frame around.
The lubrication system could be plugged with excess sealant.
- Do not apply sealant beads thicker than specified.
-- Apply sealant beads -arrows- to the clean sealing surfaces on the guide frame as shown in the illustration.
- The grooves of sealing surface must be completely filled with sealant.
- The sealant beads must be 1.5 to 2.0 mm above the sealing surface.
The guide frame must be installed within 5 minutes after applying the sealant.
The engine could be damaged.
- Make sure all the roller rocker levers are seated correctly on the valve stem ends and the adjusters.
-- Mount the guide frame together with both camshaft and the Camshaft Fitting Tool T40095 to the cylinder head.
-- Tighten the guide frame bolts, refer to Figure.
-- Remove the Camshaft Fitting Tool T40095 and Camshaft Fitting Tool T40096.
After Installation the guide frame, let the sealant harden for approximately 30 minutes.
Install in reverse order of removal. Note the following:
-- Install the fuel rail and the high pressure lines. Refer to HIGH PRESSURE LINES, INSTALLING .
-- Install the right cylinder head cover. Refer to RIGHT CYLINDER HEAD COVER, REMOVING AND INSTALLING .
-- Install the new cover with a suitable drift so that it is flush.
-- Install the camshaft timing chains. Refer to CAMSHAFT TIMING CHAINS, REMOVAL FROM CAMSHAFTS .
Risk of damaging valves and piston heads after working on valve train.
- The motor must not be started for about 30 minutes after Installation camshafts because the hydraulic equalization elements must seat themselves.
- To ensure valves do not strike pistons when starting, carefully rotate engine at least 2 full revolutions.