Crankshaft Overview

WARNING: This page is about a different car, the 2010 Audi Q7, 2009 Audi Q7, 2008 Audi Q7, and 2007 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

To perform assembly work, secure engine with V8 FSI engine holder 6095/1-6A to engine and transmission holder VAS 6095 ENGINE, SECURING TO ENGINE AND TRANSMISSION HOLDER .

Fig 1: Crankshaft Assembly Overview

Courtesy of AUDI OF AMERICA, LLC

Cylinder Block
- Paired to item -12-
- Sealant applied on cylinder block (for guide frame), refer to Fig 3
Seals
- Replace
Crankshaft Shaft Seal, Belt Pulley Side
- Replacing, refer to CRANKSHAFT SHAFT SEAL, BELT PULLEY SIDE, REPLACING .
Alignment Bushing
- 2 pieces
- Insert into guide frame
- Installed location, refer to Fig 3
Bolt
- 9 Nm
Guide Tube for Oil Dipstick
O-ring
- Replace
Bolts
- For guide frame
- Replace
- Various bolt sizes
- Tightening order, refer to Fig 5
Baffle Plate
Bolt
- Tightening specification and sequence, refer to Fig 2
Bolt
- For sealing surfaces of cylinder block/guide frame
- Different bolt lengths
- Tightening specification and sequence, refer to Fig 5
Bearing Bracket
- Paired to item -1-
- Sealant applied on cylinder block (for guide frame), refer to Fig 3
- Tightening specification and sequence, refer to Fig 5
Thrust Washer
- Only at the 4th crankshaft bearing
- Lubricating grooves face outward
- Note locating point in guide frame
- Measuring crankshaft axial clearance, refer to AXIAL CLEARANCE, MEASURING
Bearing Shell
- For guide frame without lubricating groove
- Do not interchange used bearing shells (mark)
- Insert new bearing shells for guide frame with proper color marking
  New crankshafts, refer to MAIN BEARING SHELLS, NEW CRANKSHAFTS, ALLOCATING
  
  Used and reworked crankshafts, refer to ALLOCATION OF MAIN BEARING SHELLS FOR USED AND REWORKED CRANKSHAFTS
Crankshaft
- Measuring axial play, refer to AXIAL CLEARANCE, MEASURING
- Radial clearance, measuring, refer to RADIAL CLEARANCE, MEASURING
- Do not turn crankshaft when measuring radial play
- Crankshaft dimensions, refer to CRANKSHAFT DIMENSIONS
Thrust Washer
- Only at the 4th crankshaft bearing
- Lubricating grooves face outward
- Measuring crankshaft axial clearance, refer to AXIAL CLEARANCE, MEASURING
Bearing Shell
- For cylinder block with oil groove
- Do not interchange used bearing shells (mark)
- Insert new bearing shells for cylinder block with proper color marking
  New crankshafts, refer to MAIN BEARING SHELLS, NEW CRANKSHAFTS, ALLOCATING
  
  Used and reworked crankshafts, refer to ALLOCATION OF MAIN BEARING SHELLS FOR USED AND REWORKED CRANKSHAFTS
Seals
- Replace

Fig 2: Baffle Plate Bolts Tightening Sequence

Courtesy of AUDI OF AMERICA, LLC

-- Then tighten the bolts in the sequence -1 to 16- to 9 Nm.

Fig 3: Identifying Sealant Applied On Cylinder Block (For Guide Frame)

Courtesy of AUDI OF AMERICA, LLC

-- Clean the sealing surfaces, they must be free of oil and grease.

-- Apply sealant beads -arrows- to the clean sealing surfaces on the guide frame as illustrated.

Thickness of sealant beads: 2.0 mm.

-- Install seals -1 to 4-.

Fig 4: Installation Position Of Alignment Bushings

Courtesy of AUDI OF AMERICA, LLC

-- Check whether alignment bushings -arrows- are inserted at locations in guide frame as shown in the illustration.

Fig 5: Guide Frame Bolts Tightening Sequence

Courtesy of AUDI OF AMERICA, LLC

-- Replace bolts -1 to 20-.

-- Tighten bolts for guide frame as follows:

-- Tighten bolts -1 to 10- to 30 Nm.

-- Tighten bolts -11 to 20- to 20 Nm.

-- Tighten bolts -1 to 10- to 50 Nm.

-- Tighten bolts -11 to 20- to 30 Nm.

-- Tighten the bolts -1 to 10- an additional 90°.

-- Tighten the bolts -11 to 20- an additional 90°.

-- Tighten the bolts for the cylinder block/guide frame sealing surface -highlighted in the illustration but not numbered- in a diagonal sequence to 9 Nm.