Balance Shaft, Removing And Installing, Intake Side: Installing

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

Fig 1: Locating Balance Shaft Mountings

Courtesy of AUDI OF AMERICA, LLC

After removing the balance shaft the needle bearing must be replaced.
The needle bearing rim is colored, a needle bearing rim of the same color must be installed.

-- Lubricate the balance shaft mountings -arrows- with engine oil.

-- Insert the intake side balance shaft and tighten the bolt -2-.

Fig 2: Identifying Intake Camshaft Balance Shaft

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-- Coat the new O-ring -1- with engine oil.

Fig 3: Bearing Pins Installation Position

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-- Coat the mounting pin with engine oil and insert.

The alignment pin -arrow- for the bearing pins must engage in the hole in the cylinder block.

CAUTION:

Risk of Destroying the Engine Due to a Missing Backlash.

- Replace the intermediate sprocket.

TIP:

The new intermediate sprocket has an anti-friction coating that wears off after a short period of use, which automatically adjusts the backlash.

-- Mark the tooth flank on the intermediate sprocket with a color -arrow-.

Fig 4: Identifying Tooth Face On Intermediate Shaft Sprocket Marked With Paint

Courtesy of AUDI OF AMERICA, LLC

-- Push in the intermediate sprocket.

The marking on the balance shaft must be between the markings on the tooth flanks.

-- Tighten the bolt -1- for the intermediate sprocket, in this gear position. Refer to Fig 5 for the tightening sequence.

Fig 5: Identifying Intermediate Shaft Sprocket

Courtesy of AUDI OF AMERICA, LLC

Fig 6: Identifying Intermediate Shaft Sprocket

Courtesy of AUDI OF AMERICA, LLC

-- Check the markings on the intermediate sprocket/balance shaft -arrow-.

Further installation is performed in reverse order of removal, while noting the following:

-- Install the balance shaft drive chain. Refer to BALANCE SHAFT DRIVE CHAIN, REMOVING AND INSTALLING .

-- Replace the balance shaft intake side seal. Refer to BALANCE SHAFT GASKET, REPLACING, INTAKE SIDE .

-- Install the coolant pump toothed belt. Refer to COOLANT PUMP TOOTHED BELT, REMOVING AND INSTALLING .