Cylinder Head and Cylinder Head Cover Assembly Overview
Cylinder Head and Cylinder Head Cover Assembly Overview
1 Cylinder Head Gasket
• Replace
• After replacing, change engine oil and coolant
2 Cylinder Head
• Removal and installation, refer to => [ Cylinder Head ] Cylinder Head
• Check for distortion, refer to => [ Checking Cylinder Head for Distortion ]
• After replacing, change engine oil and coolant
3 Lifting Eye
4 Bolt
• 23 Nm
5 Cylinder Head Cover Gaskets
• Replace if damaged
6 Cylinder Head Cover
• Removal and installation, refer to => [ Cylinder Head Cover ] Cylinder Head Cover
7 Spacing Sleeve
• With seal
• Replace seal if damaged
8 Nut
• 10 Nm
9 Cap
10 Seal for Filler Cap
• Replace if damaged
11 Rubber Buffer
• Replace if damaged
12 Ignition Coil
• Use puller for ignition coil (T10095 A) for removal
13 Bolt
• With spacer sleeve and seal
• Replace seal if damaged
• Tightening specifications and tightening sequence, refer to => [ Cylinder Head Cover - Tightening Specifications
and Tightening Sequence ]
14 Bolt
• 10 Nm
15 Bolt
• 10 Nm
16 Bracket
• For fuel line
17 Bolt
• Replace
• Observe sequence for loosening, refer to => [ Loosening the Cylinder Head ]
• Tightening specifications and tightening sequence, refer to => [ Cylinder Head - Tightening Specifications and
Tightening Sequence ]
18 Lifting Eye
19 Bolt
• 23 Nm
20 Bolt
21 Secondary Air Injection (AIR) Combination Valve
• Version and installation location, refer to => [ Secondary Air Injection System Assembly Overview ] Service and Repair
Cylinder Head Cover - Tightening Specifications and Tightening Sequence
- Tighten bolts to 10 Nm in the sequence - 1 to 11 -.
Loosening the Cylinder Head
- Loosen the bolts in sequence - 1 to 20 -.
Cylinder Head - Tightening Specifications and Tightening Sequence
- Tighten bolts in 4 stages in - 1 to 20 - sequence as follows:
• The longer cylinder head bolts must be inserted in the middle holes of cylinder head.
- Tighten bolts by hand.
- Tighten the bolts to 30 Nm.
- Tighten the bolts to 50 Nm.
- Tighten an additional 180° (1/2 turn).
Checking Cylinder Head for Distortion
- Measure at several places with straight edge and feeler gauge.
Permissible distortion:
• Maximum 0.05 mm.