Cylinder Head, Assembly Overview
Cylinder Head, Assembly Overview
• To remove the cylinder head, the engine must first be removed --> [ Engine, Removing ] Engine Removing.
• If a replacement cylinder head is installed, all contact surfaces between support elements, roller cam followers and cam lubricating surfaces of camshafts must be oiled before installing the cylinder head cover.
• The plastic protectors installed to protect the open valves must only be removed immediately before fitting the cylinder head.
• When replacing the cylinder head or cylinder gasket, the complete amount of coolant must be replaced.
• Removing and installing intake manifold --> [ Intake Manifold, Assembly Overview ] Intake Manifold, Assembly Overview, Cylinder head, removing and installing
• Compression, checking--> [ Compression, Checking ] Testing and Inspection.
1 Sealing cap
• Replace gaskets if damaged
2 Sleeve
• Replace if damaged
3 Oil filler neck
• Replace gaskets if damaged
4 Connecting hose
• For crankcase ventilation
5 Cylinder head cover
• Left cylinder head cover, removing and installing --> [ Left Cylinder Head Cover ] Left Cylinder Head Cover
• Right cylinder head cover, removing and installing --> [ Right Cylinder Head Cover ] Right Cylinder Head Cover
• Replace if damaged
6 Gasket
• Note installation position
• Replace if damaged or leaking
7 10 Nm
• Observe tightening sequence
• Left cylinder head cover, removing and installing --> [ Left Cylinder Head Cover ] Left Cylinder Head Cover
• Right cylinder head cover, removing and installing --> [ Right Cylinder Head Cover ] Right Cylinder Head Cover
8 Gasket for cylinder head cover
• Ensure correct positioning on studs of cylinder head cover
• Replace if damaged or leaking
• Note installation position
• Left cylinder head cover, removing and installing --> [ Left Cylinder Head Cover ] Left Cylinder Head Cover
• Right cylinder head cover, removing and installing --> [ Right Cylinder Head Cover ] Right Cylinder Head Cover
9 Baffle plate
10 5 Nm
11 Coolant line
12 Gasket
• Replace
13 Grommet
• Insert into cylinder head cover
• Replace if damaged or leaking
14 Cylinder head bolt
• Replace
• Observe installation instructions and sequence when loosening and tightening
• Right cylinder head, removing and installing --> [ Right Cylinder Head ] Right Cylinder Head
• Left cylinder head, removing and installing --> [ Left Cylinder Head ] Left Cylinder Head
15 Cylinder head
• Check for distortion --> [ Checking cylinder head for distortion ]
• Right cylinder head, removing and installing --> [ Right Cylinder Head ] Right Cylinder Head
• Left cylinder head, removing and installing --> [ Left Cylinder Head ] Left Cylinder Head
• After replacing replace entire amount of coolant
16 Cylinder head gasket
• Metal gasket
• Replace
• Must be located on alignment pins
• After replacing replace entire amount of coolant
17 10 Nm
18 Combi-valve
• For Secondary Air Injection (AIR) system
19 Coolant line
20 O-ring
• Replace
21 20 Nm
22 Lifting eye
23 Seal
• Replace if damaged or leaking
Checking cylinder head for distortion
Special tools, testers and auxiliary items required
• Straight edge
• Feeler gauge
Max. permissible distortion: 0.1 mm