Cylinder Head, Servicing

From 08.00 a new tightening roller and tightening device for the toothed belt is being installed. Tightening roller must be adjusted in order to tension toothed belt.

Notes:
^ When installing a replacement cylinder head with camshafts attached, grease contact surfaces between valve lifters and cam lubricating surfaces before attaching cylinder head cover.
^ Do not remove plastic covers protecting exposed valves until immediately before installing cylinder head.
^ When replacing cylinder head or cylinder head gasket, coolant must be completely replaced.





1- Line
^ for crankcase ventilation
2- Pressure line
^ for combination valve
3- 10 Nm
4- Cylinder head cover
5- Cylinder head cover gasket
^ Replace if damaged
^ Before installing, coat sealing contact surfaces between bearing cap and cylinder head with D 454 300 A2, Refer to Camshafts, Lifters and Push Rods; Service and Repair; Valve Train Servicing, Fig. 4 and Fig. 5.
6- Oil deflector
^ Note position: Above intake camshaft
7- 25 Nm
8- Lifting eye
9- Cylinder head
^ Check for warpage see Fig. 1
^ Reface sealing surface, Refer to Camshafts, Lifters and Push Rods; Service and Repair; Valve Train Servicing, Fig. 1.
^ Removing and installing, Refer to Removing and Installing.
^ After replacing, completely replace coolant
10- Seal for intake pipe
^ Always replace
11- Cylinder head gasket
^ Always replace
^ Metal gasket
^ After replacing, completely replace coolant

^ Note position: Identification: Part number must be visible from intake side.

12- Seal for exhaust manifold
^ Always replace
^ Note installed position
13- Cylinder head bolt
^ Always replace
^ Sequence for loosening and tightening, Refer to Removing and Installing.
14- Cap
^ Replace seal if damaged
15 - 10 Nm





Fig. 1 Check cylinder head for warpage
Cylinder head warpage must not exceed: 0.1 mm