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Home >> Audi >> 2009 >> Q7 4.2 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 27 (3.0L - Cylinder Head & VALVETRAIN - Engine Code: CATA) >> 15 Cylinder Head, VALVETRAIN >> Chain Drive >> Balance Shaft, Removing And Installing

Balance Shaft, Removing And Installing

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

Special tools and workshop equipment required 

Removal 

-- Remove the belt pulley side sealing flange. Refer to SEALING FLANGE, BELT PULLEY SIDE, REMOVING AND INSTALLING .

-- Remove the timing chain cover lower section. Refer to LOWER TIMING CHAIN COVER, REMOVING AND INSTALLING .

-- Remove the power take-off drive chain. Refer to POWER TAKE-OFF DRIVE CHAIN, REMOVING AND INSTALLING .

-- Lock the front balance shaft to the engine with the Diesel Injection Pump Locking Pin 3359.

Fig 1: Secure The Balance Shaft Using Diesel Injection Pump Locking Pin 3359.
GWWA13-0889Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolt and remove the balance weight from the balance shaft.

-- Remove the bolts -arrows- at the back of the motor and remove the chain sprocket from the balance weight.

Fig 2: Identifying Chain Sprocket Bolts -Arrows-
GWWA13-10503Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolt -arrow- at the back of the engine and remove the balance weight from the balance shaft.

Fig 3: Identifying Rear Balance Shaft -Arrow- And Diesel Injection Pump Locking Pin 3359
GWWA13-0888Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -arrows- and remove the balance shaft bearing end bracket.

Fig 4: Identifying Bolts -Arrows- And Balance Shaft Bearing End Bracket
GWWA13-0890Courtesy of AUDI OF AMERICA, LLC

-- Remove the balance shaft from the cylinder block.

Installation 

Fig 5: Identifying Crankshaft Holder 3242
GWWA13-10046Courtesy of AUDI OF AMERICA, LLC

Install in reverse order of removal. Note the following:

-- Install the power take-off drive chain. Refer to POWER TAKE-OFF DRIVE CHAIN, REMOVING AND INSTALLING .

-- Install the timing chain cover lower section. Refer to LOWER TIMING CHAIN COVER, REMOVING AND INSTALLING .

-- Install the belt pulley side sealing flange. Refer to SEALING FLANGE, BELT PULLEY SIDE, REMOVING AND INSTALLING .

-- Fill engine oil and check the oil level. Refer to Maintenance Booklet 406.