Overview - VALVETRAIN
WARNING: This page is about a different car, the 2022 Audi S7 and 2022 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.
- Exhaust Valve
- Do not rework, only grinding is permitted
- Mark the installed position for reinstallation.
- Valve Dimensions. Refer to VALVE DIMENSIONS .
- Valve Guides, Checking. Refer to VALVE GUIDES, CHECKING .
- Valve Stem Seal
- Different versions; allocation. Refer to Fig 4.
- Replacing. Refer to VALVE STEM SEALS, REMOVING AND INSTALLING .
- Valve Spring
- Valve Spring Retainer
- Valve Retainers
- Roller Rocker Lever
- Mark the installation position with paint for reinstallation
- Check the roller bearing for ease of movement
- Oil the running surfaces before installing
- Clipped in with the clamp -item- Clip on the hydraulic lifter -item- Hydraulic Lifter
- Clip
- Not available separately.
- Check for secure fit
- Hydraulic Lifter
- Clipped in the roller rocker lever -item- Roller Rocker Lever
- Mark the installation position with paint for reinstallation
- Oil the running surfaces before installing
- Cylinder Head
- Shown for cylinder bank 2 (left)
- Valve Guides, Checking. Refer to VALVE GUIDES, CHECKING .
- Intake Valve
- Do not rework, only grinding is permitted
- Mark the installed position for reinstallation.
- Valve Dimensions. Refer to VALVE DIMENSIONS .
- Valve Guides, Checking. Refer to VALVE GUIDES, CHECKING .
Installation Position of the Intake Valve Spring
- The tight spring coils -arrow- face toward the cylinder head.
Installation Position of the Exhaust Valve Spring
- The color marking -arrows- points upward.
Valve Stem Seal Allocation
A -
Exhaust Side, Red
B -
Intake Side, Green