High Pressure Pump Drive Chain Sprocket, Removing And Installing

Removing

-- Remove the high pressure pump. Refer to HIGH PRESSURE PUMP, REMOVING AND INSTALLING .

-- Remove the intake camshaft adjuster -1-. Refer to CAMSHAFT ADJUSTER, REMOVING AND INSTALLING => .

Fig 1: Coating Drive Shaft With Clean Engine Oil

Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolt -3- from the glide track.

-- Remove the timing chain from the drive chain sprocket.

-- Pull out the bearing shaft -4- and remove drive chain sprocket -6-.

Installing:

-- Install the drive chain sprocket. The notch -arrow- must face upward.

Fig 2: Identifying Alignment Of Sprocket (Notch -Arrow- Must Face Upward)

Courtesy of AUDI OF AMERICA, LLC

-- Coat the bearing shaft with Grease:G 052 723 A2  and insert. The bearing shaft fits only in one position.

-- Secure the high pressure pump drive chain sprocket position with the Adjustment Tool:T10363  . The marking -A- on the on high pressure pump drive pinion must be at the top.

Fig 3: Securing Position Of Drive Pinion For High Pressure Pump Using Adjustment Tool T10363

Courtesy of AUDI OF AMERICA, LLC

-- Mount the timing chain on the drive chain sprocket. Make sure the chain lies >>taut<< on the guide rail.

-- Tighten the guide rail bolt -arrow-.

Fig 4: Identifying Guide Rail Bolt

Courtesy of AUDI OF AMERICA, LLC

-- Install the camshaft adjuster. Refer to Camshaft Adjuster, Installing: .

-- Install the high pressure pump. Refer to HIGH PRESSURE PUMP, REMOVING AND INSTALLING .

Further assembly is performed in reverse order.

Tightening Specifications:

• Refer to OVERVIEW - CAMSHAFT TIMING CHAINS