Overview - VALVETRAIN: Notes
WARNING: This page is about a different car, the 2016 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The cylinder head for cylinder bank 2 (left) is shown in the illustration.
- Valve
- Do not rework, only lapping is permitted
- Mark the installed position for installation later
- Checking. Refer to VALVES, CHECKING .
- Valve dimensions. Refer to VALVE DIMENSIONS .
- Valve guides, checking. Refer to VALVE GUIDES, CHECKING .
- Cylinder Head
- Valve guides, checking. Refer to VALVE GUIDES, CHECKING .
- Valve seats, reworking. Refer to VALVE SEATS, REWORKING .
- Valve Stem Seal
- Replacing. Refer to VALVE STEM SEALS, REMOVING AND INSTALLING .
- Valve Spring
- Valve Spring Retainer
- Valve Retainers
- Hydraulic Adjusting Element
- Clipped into roller rocker lever -9-
- Mark the installed position for installation later
- Lubricate the running surfaces before installing
- Clip
- Not available individually
- Make sure it is secure
- Roller Rocker Lever
- Mark the installed position for installation later
- Check roller for easy movement
- Lubricate the running surfaces before installing
- To assemble, clip onto the hydraulic adjusting element -8- with securing clip -7-
- Intake Camshaft
- Removing and installing:
- Cylinder bank 1 (right). Refer to CAMSHAFTS, REMOVING, USED CAMSHAFTS, REINSTALLING ON CYLINDER BANK 1 (RIGHT) and CAMSHAFTS OR CAMSHAFT BEARING, REMOVING AND INSTALLING FOR CYLINDER BANK 1 (RIGHT) .
- Cylinder bank 2 (left). Refer to CAMSHAFTS, REMOVING, USED CAMSHAFTS, REINSTALLING ON CYLINDER BANK 2 (LEFT) and CAMSHAFTS OR CAMSHAFT BEARING, REMOVING AND REPLACING ON CYLINDER BANK 2 (LEFT) .
- Axial play, measuring. Refer to CAMSHAFT, MEASURING AXIAL CLEARANCE .
- Radial play, measuring. Refer to CAMSHAFT, MEASURING RADIAL CLEARANCE .
- Maximum run out: 0.01 mm
- Removing and installing:
- Bearing Cap
- Removing and installing:
- Cylinder bank 1 (right). Refer to CAMSHAFTS, REMOVING, USED CAMSHAFTS, REINSTALLING ON CYLINDER BANK 1 (RIGHT) .
- Cylinder bank 2 (left). Refer to CAMSHAFTS, REMOVING, USED CAMSHAFTS, REINSTALLING ON CYLINDER BANK 2 (LEFT) .
- Pay attention to the installed position.
- Removing and installing:
- Bracket
- For the tension clamp
- Tightening specification -Item 1- OVERVIEW - FUEL INJECTORS .
- Bolt
- Tightening specifications and sequence. Refer to appropriate service information.
- Exhaust Camshaft
- Removing and installing:
- Cylinder bank 1 (right). Refer to CAMSHAFTS, REMOVING, USED CAMSHAFTS, REINSTALLING ON CYLINDER BANK 1 (RIGHT) and CAMSHAFTS OR CAMSHAFT BEARING, REMOVING AND INSTALLING FOR CYLINDER BANK 1 (RIGHT) .
- Cylinder bank 2 (left). Refer to CAMSHAFTS, REMOVING, USED CAMSHAFTS, REINSTALLING ON CYLINDER BANK 2 (LEFT) and CAMSHAFTS OR CAMSHAFT BEARING, REMOVING AND REPLACING ON CYLINDER BANK 2 (LEFT) .
- Axial play, measuring. Refer to CAMSHAFT, MEASURING AXIAL CLEARANCE .
- Radial play, measuring. Refer to CAMSHAFT, MEASURING RADIAL CLEARANCE .
- Maximum run out: 0.01 mm
- Removing and installing:
- Bearing Block
- Removing and installing:
- Cylinder bank 1 (right). Refer to CAMSHAFTS, REMOVING, USED CAMSHAFTS, REINSTALLING ON CYLINDER BANK 1 (RIGHT) .
- Cylinder bank 2 (left). Refer to CAMSHAFTS, REMOVING, USED CAMSHAFTS, REINSTALLING ON CYLINDER BANK 2 (LEFT) .
- Pay attention to the installed position.
- Removing and installing:
- Adapter Sleeves
- Only for the rear thrust bearing with the camshaft axial bearing