Overview - Balance Shaft

Fig 1: Balance Shaft Components Location

Courtesy of AUDI

1. Cylinder Block
2. Bolt
   • Tightening Specifications:
     • Steel bolt 9 Nm
     • Aluminum bolt 4 Nm +45°
   • Replace the aluminum bolt after removal
3. Balance Shaft
   • Intake side
   • Lubricate the bearing with engine oil
   • Replace in pairs only. Refer to BALANCE SHAFT, REMOVING AND INSTALLING, INTAKE SIDE .
4. Balance Shaft Pipe
   • Exhaust side
   • Installation position. Refer to Fig 3.
5. Bolt
   • Tightening Specifications:
     • Steel bolt 9 Nm
     • Aluminum bolt 4 Nm +45°
   • Replace the aluminum bolt after removal
6. Balance Shaft
   • Exhaust side
   • Lubricate the bearing with engine oil
   • Replace in pairs only. Refer to BALANCE SHAFT, REMOVING AND INSTALLING, EXHAUST SIDE .
7. Needle Bearing Rim
   • Replace after removing
   • The needle bearing rim is colored, a needle bearing rim of the same color must be installed.
   • Lubricate the bearing with engine oil
8. Needle Bearing Rim
   • Replace after removing
   • The needle bearing rim is colored, a needle bearing rim of the same color must be installed.
   • Lubricate the bearing with engine oil
9. Balance Shaft Pipe
   • Intake side
   • Installation position. Refer to Fig 2.
10. Exhaust Side Balance Shaft Seal
    • Replacing. Refer to BALANCE SHAFT GASKET, REPLACING, INTAKE SIDE .

Intake Side Balance Shaft Pipe - Installation Position

Fig 2: Balance Shaft Pipe Installation Position

Courtesy of AUDI

• The tab -arrow A- on the balance shaft must engage in the cut-out -arrow B- on the pipe.

Exhaust Side Balance Shaft Pipe - Installation Position

Fig 3: Balance Shaft Pipe

Courtesy of AUDI

• The openings -right arrow- must face the chain side.

-- Insert the pipe -2- for the balance shaft in the cylinder block -1-.

Fig 4: Inserting Pipe For Balance Shaft Into Cylinder Block

Courtesy of AUDI

• For the correct installation position the dimension must be -a- = 21 mm.