Overview - Crankshaft: Notes
WARNING: This page is about a different car, the 2018 Audi S6, 2017 Audi S6, and 2016 Audi S6. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
For assembly work, secure the engine on the Engine and Transmission Holder :VAS6095A . Refer to ENGINE, SECURING ON ENGINE AND TRANSMISSION HOLDER .
- Cylinder Block
- Paired to -5-.
- Sealant applied on cylinder block (for guide frame). Refer to SEALANT APPLIED TO CYLINDER BLOCK FOR GUIDE FRAME
- Shaft Seal
- Always replace. Refer to CRANKSHAFT SEAL, REPLACING, BELT PULLEY SIDE .
- For crankshaft - belt pulley side
- Crankshaft
- Different versions.
- Axial play, measuring. Refer to CRANKSHAFT, MEASURING AXIAL CLEARANCE .
- Radial play, measuring. Refer to CRANKSHAFT, MEASURING RADIAL CLEARANCE .
- Crankshaft dimensions. Refer to CRANKSHAFT DIMENSIONS .
- If a new crankshaft is installed, install a new alignment pin -Item ) OVERVIEW - CYLINDER BLOCK, TRANSMISSION SIDE.
- Alignment Sleeve
- Quantity: 2
- Insert in cylinder block
- Installed Position. Refer to the image above (for Exploded View Of Crankshaft) or to the appropriate service information.
- Guide Frame
- Paired to -1-.
- Remove the guide rail for the timing mechanism drive chain -Item 1) OVERVIEW - TIMING MECHANISM DRIVE CHAIN prior to removal.
- Remove the oil filter before removing.CAUTION:
- Do not loosen the cross bolts in the guide frame.
- Install with sealant (on the cylinder block). Refer to SEALANT APPLIED TO CYLINDER BLOCK FOR GUIDE FRAME ; for the correct sealant refer to the Parts information.
- Bolts
- Tightening Specification And Sequence. Refer to GUIDE FRAME TIGHTENING SEQUENCE AND SPECIFICATIONS .
- Always replace
- Use old bolts to measure radial play.
- For guide frame
- Insert the long bolts in the interior and the short bolts in the exterior.
- Bolt
- Tightening Specification And Sequence. Refer to GUIDE FRAME TIGHTENING SEQUENCE AND SPECIFICATIONS .
- Always replace
- Baffle Plate
- Bolt
- Tightening Sequence. Refer to BAFFLE PLATE TIGHTENING SEQUENCE AND SPECIFICATIONS
- For guide frame to cylinder block sealing surfaces
- There are different bolt lengths
- Thrust Washers
- Only on crankshaft bearing 4
- Installed position: lubricating grooves face outward
- Note locating point in guide frame
- Bearing Shell
- For guide frame without lubricating groove
- Replace any worn bearing shells
- Install the new bearing shells for the guide frame with the correct color identification: new crankshaft. Refer to MAIN BEARING SHELLS, NEW CRANKSHAFT, ALLOCATING , worn and reworked crankshaft. Refer to MAIN BEARING SHELLS, USED AND REWORKED CRANKSHAFTS, ALLOCATING
- Do not interchange the central bearing shell for crankshaft bearings 1 through 4 with eccentric crankshaft bearing 5.
- Eccentric bearing shell for crankshaft bearing 5 with offset position for the locating tab
- Bearing Shell
- For cylinder block with oil groove
- Replace any worn bearing shells
- Install the new bearing shells for the cylinder block with the correct color marking: new crankshaft. Refer to MAIN BEARING SHELLS, NEW CRANKSHAFT, ALLOCATING , worn or reworked crankshaft. Refer to MAIN BEARING SHELLS, USED AND REWORKED CRANKSHAFTS, ALLOCATING
- Do not interchange the central bearing shell for crankshaft bearings 1 through 4 with eccentric crankshaft bearing 5.
- Eccentric bearing shell for crankshaft bearing 5 with offset position for the locating tab
- Thrust Washers
- Only on crankshaft bearing 4
- Installed position: lubricating grooves face outward
- O-Ring
- Always replace
- Seals
- Always replace