Removing Cylinder Head (Cylinders 1-3)

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NOTE: Dirt and contamination

Risk of damage to units or components
→ Protect components from dirt and contamination.

→ Clean or replace dirty components.

Information

Position hydraulic tappets on a surface you have prepared and labelled yourself in accordance with their installation position in the cylinder head.
Components are run in fitting bores. Do not get these mixed up.
Do not use magnets for pulling out or removing the hydraulic tappets. Magnets can cause malfunctions.

Remove hydraulic tappets.
Pull bucket tappets -1- and switching tappets -2- out of the fitting bores in the cylinder head.

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Hydraulic tappets for valve control

Set bucket and switching tappets down on a clean, labelled surface > Laying aside hydraulic tappets (shown as an example) .

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Laying aside hydraulic tappets (shown as an example)
Unscrew screw -1- on the generator -2- .

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Screw on generator
Unscrew bearing pin -1- .

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Position of bearing pins
Loosen coolant collection unit -1- .
Unscrew and remove screws -2- .

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Removing coolant collection unit
Loosen lines on the cylinder head.
Unscrew screw on line bracket -1- .

Release and disconnect electric plug connection -2- .

Unclip clip -3- .

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Lines on cylinder head
Unscrew screw on coolant regulator -1- .

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Coolant regulator at cylinder head

Information
- Be careful - cylinder heads are heavy.
Unscrew screws for chain housing -1- .

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Chain housing screws
Unscrew cylinder head screws -1- .

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Cylinder head screws
Remove cylinder head.
Check fitting bores of the hydraulic tappets for wear. If you see signs of wear, replace the relevant cylinder head and any worn hydraulic tappets.
Check the sealing face of the cylinder head for distortion and wear during re-installation. Carry out the required repair measures if necessary.
Remove and dispose of cylinder head gasket.
Check dowel sleeves for signs of damage and replace them if necessary.