Cylinder head, installing

Cylinder head, installing

Note:
^ Replace cylinder head bolts.
^ Replace self-locking nuts and bolts during assembly work.
^ Always replace bolts that are secured with tightening torque as well as O-rings and gaskets.
^ In case of repairs, carefully remove sealant residue from cylinder head and cylinder block. Avoid introducing any scratches or scoring.
^ Thoroughly remove all sanding and grinding residue.
^ Pocket holes in cylinder block for cylinder head bolts must be free of oil and coolant.
^ Do not remove new cylinder head gasket from package until immediately before installing.
^ Handle gasket with extra care. Damage in silicon layer and recessed area lead to leakage.
^ Install cylinder head gasket onto guide sleeves. Marking "open" (top) or part number must face toward cylinder head.
^ Secure all hose connections using hose clamps appropriate for the model type:
Refer to Parts Supplier

Installation is reverse of removal:
^ Before installing cylinder head, set crankshaft and camshafts to TDC cylinder 3:





^ T40030 camshaft adjuster gauge must be inserted at both cylinder heads...





^ and T40026 locking pin must be threaded in.





^ Install cylinder head gasket.
^ Observe centering pins (arrows) in cylinder block.
^ Pay attention to installed position of cylinder head gasket, marking "open" (top) or part number must face toward cylinder head.
^ Install cylinder head.
^ Insert new cylinder head bolts and hand-tighten.





^ Tighten cylinder head bolts in sequence, in two stages.
^ Tighten using torque wrench:
^ 1. Stage: 40 Nm
^ Tighten using a solid wrench:
^ 2. Stage: 180 - (1/2 turn) further

Note:
^ Two additional turns of 90° are permissible.
^ It is not necessary to re-tighten the cylinder head bolts.

^ Install toothed belt (adjust timing).

Note: After working on the valvetrain, carefully rotate engine by hand at least 2 full revolutions to ensure that valves do not strike the pistons when starting.

^ Install left front exhaust pipe with catalytic converter.
^ Install right front exhaust pipe with catalytic converter.
^ Install exhaust system free of stress.
^ Install centering pin for intake manifold.
^ Install intake manifold.
See Caution for connecting Telematics battery
^ Observe safety precautions after connecting the battery.
^ Replace coolant.
^ Fill up power steering fluid and bleed steering system





Tightening torques
1) Replace bolts.