Part I
WARNING: This page is about a different car, the 2016 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.
For Valvetrain, Engine With Two Camshaft Adjusters - PART II. Refer to PART II .
- Exhaust Valve
- Do not rework, only lapping is permitted
- Valve Dimensions. Refer to VALVE DIMENSIONS .
- Valve Guides, Checking. Refer to VALVE GUIDES, CHECKING .
- Cylinder Head
- Valve Stem Seal
- There are different versions. Refer to Figure .
- Replacing. Refer to VALVE STEM SEALS, REMOVING AND INSTALLING .
- Valve Spring
- Valve Spring Retainer
- Valve Retainers
- Hydraulic Lifter
- Do not interchange
- Lubricate the contact surface
- Clip
- For hydraulic lifter
- Roller Rocker Lever
- Mark the installed position for reinstallation.
- Check the roller bearing for ease of movement
- Lubricate the running surfaces before installing
- Removing and installing. Refer to CAMSHAFT, REMOVING AND INSTALLING .
- Exhaust Camshaft
- Radial clearance: 0.024 to 0.066 mm
- Run-out: maximum 0.04 mm
- Check the radial clearance using Plastigage® (roller rocker lever removed)
- Removing and installing. Refer to CAMSHAFT, REMOVING AND INSTALLING .
- Spring
- No replacement part
- Ball
- For sliding bar
- Installing. Refer to SLIDING BAR BALL, INSTALLING .
- Cylinder Head Cover
- With integrated camshaft bearings
- Clean the sealing surface, reworking is not permitted.
- Remove old sealant residue.
- Removing. Refer to CAMSHAFT, REMOVING AND INSTALLING .
- Bolt
- Intake Camshaft
- Radial clearance: 0.024 to 0.066 mm
- Run-out: maximum 0.04 mm
- Check the radial clearance using Plastigage® (roller rocker lever removed)
- Removing and installing. Refer to CAMSHAFT, REMOVING AND INSTALLING .
- Alignment Pin
- Alignment Pin
- Intake Valve
- Do not rework, only lapping is permitted
- Valve Dimensions. Refer to VALVE DIMENSIONS .
- Valve Guides, Checking. Refer to VALVE GUIDES, CHECKING .