Overview - VALVETRAIN
WARNING: This page is about a different car, the 2018 Audi TT Quattro. However, it is still accessible from the selected car via links, so may be relevant.
- Cylinder Head
- Overview. Refer to OVERVIEW - CYLINDER HEAD .
- Alignment Pins
- Roller Rocker Lever
- Mark the installed position for reinstallation.
- Check the roller bearing for ease of movement
- Lubricate the running surfaces before installing
- To install clip with clip -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 installed position for reinstallation.
- Lubricate the running surfaces before installing
- Valve Keepers
- Valve Spring Retainer
- Valve Spring
- Installation position. Refer to Fig 3.
- Valve Stem Seal
- Different versions for the intake and exhaust side. Refer to Fig 2.
- Replacing. Refer to VALVE STEM SEALS, REMOVING AND INSTALLING .
- Intake Valve
- Do not rework, only lapping is permitted
- Mark the installed position for reinstallation.
- Checking. Refer to Vehicle Diagnostic Tester.
- Valve Dimensions. Refer to VALVE DIMENSIONS .
- Valve Guides, Checking. Refer to VALVE GUIDES, CHECKING .
- Exhaust Valve
- Do not rework, only lapping is permitted
- Mark the installed position for reinstallation.
- Checking. Refer to Vehicle Diagnostic Tester.
- Valve Dimensions. Refer to VALVE DIMENSIONS .
- Valve Guides, Checking. Refer to VALVE GUIDES, CHECKING .
Valve Stem Seal - Different Versions
A - Exhaust side
B - Intake side
Installation Position of Valve Spring
- The tight spring coils -arrow- face toward cylinder head.