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Home >> Audi >> 2012 >> Q7 3.0 TDI >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (3.0L - Crankshaft & Cylinder Block - Engine Code(S): CJTB, CJTC, CNAA, CJWB, CJWC, CJWE, CTWA, CTWB) >> 13 Crankshaft, Cylinder Block >> Crankshaft >> Overview - Crankshaft

Overview - Crankshaft

WARNING: This page is about a different variant/trim than selected.
NOTE:

For assembly work, secure the engine on the Engine And Transmission Holder VAS6095. Refer to ENGINE, SECURING ON ENGINE AND TRANSMISSION HOLDER .

Fig 1: Crankshaft Assembly Component Location Overview
GWWA13-10459Courtesy of AUDI OF AMERICA, LLC
  1. Sealing Flange, Belt Pulley Side
  2. Bolt
    • Tightening specification and sequence. Refer to Figure
  3. Crankshaft
  4. Alignment Sleeve
    • Quantity: 4
    • Insert into guide frame. Refer to Fig 4
  5. Seal
    • Replace
  6. Bolt
    • For guide frame to cylinder block sealing surfaces
    • There are different bolt lengths and bolt heads
    • Tightening specification and sequence. Refer to Fig 5.
  7. Bolt
    • Long, large shoulder
    • For inner row of guide frame
    • Replace
    • Use old bolts to measure radial play.
    • Tightening specification and sequence. Refer to Fig 5
  8. Bolt
    • Short, small shoulder
    • For outer row of guide frame
    • Tightening specification and sequence. Refer to Fig 5
  9. Guide Frame
  10. Seal
    • Replace
  11. Thrust Washer
    • Crankshaft bearing 3 only
    • Installed position: the oil groove faces outside
    • Note locating point in guide frame
  12. Bearing Shell
    • For guide frame without lubricating groove
    • Replace any worn bearing shells
    • Pay attention to the installed position.
    • Insert new bearing shells for guide frame with proper color marking. Refer to Fig 7
  13. Thrust Washer
    • Crankshaft bearing 3 only
    • Installed position: the oil groove faces outside
    • Pay attention to the locating point on the cylinder block
  14. Bearing Shell
    • For cylinder block with oil groove
    • Replace any worn bearing shells
    • Pay attention to the installed position.
    • Insert new bearing shells for cylinder block with proper color marking. Refer to Fig 6
  15. Cylinder Block
Fig 2: Identifying Crankshaft Locking Bolt
GWWA15-10525Courtesy of AUDI OF AMERICA, LLC
NOTE:

Replace the O-ring.

-- Tighten the locking bolt -arrow- to 14 Nm.

Fig 3: Identifying Oil Pressure Regulation Valve -N428-
GWWA17-10208Courtesy of AUDI OF AMERICA, LLC
  1. Connector
  2. O-ring - replace
  3. Bolt, 9 Nm
  4. Oil Pressure Regulation Valve -N428-
Fig 4: Applying Sealant Beads To Clean Sealing Surfaces Of Guide Frame
GWWA13-10488Courtesy 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 shown in the illustration.

-- Position seals -1 and 2-.

-- Check if alignment bushings -3 through 6- are inserted at the locations in the guide frame as shown in the illustration.

Fig 5: Guide Frame Bolts Tightening Sequence
GWWA13-10413Courtesy of AUDI OF AMERICA, LLC
NOTE:

Replace any bolts that were tightened with an additional turn.

-- Insert the long bolts in the inner row of the guide frame.

-- Tighten the bolts in steps in the sequence shown:

Step Bolts Tightening Specification/Additional Turn
1 -1 to 16- 50 Nm
2 -1 to 16- Tighten 90° additional turn
3 -17 to 31- 20 Nm
4 -17 to 31- Tighten 90° additional turn
Fig 6: Allocation Of Crankshaft Bearing Shells For Cylinder Block
GWWA13-10057Courtesy of AUDI OF AMERICA, LLC
Letter on Guide Frame Color of Bearing
R = Red
G = Yellow
B = Blue
S = Black
Fig 7: Allocation Of Crankshaft Bearing Shells For Guide Frame
GWWA13-10208Courtesy of AUDI OF AMERICA, LLC
Letter on Crankshaft Color of Bearing
R = Red
G = Yellow
B = Blue
S = Black
Fig 8: Identifying Oil Pressure Regulation Valve -N428-
GWWA17-10208Courtesy of AUDI OF AMERICA, LLC