Camshaft Timing Chain, Removing And Installing: Installing

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Tightening specification, refer to OVERVIEW - CAMSHAFT TIMING CHAINS .

NOTE:

If the tensioner was removed from the chain tensioner, then pay close attention to the installed position: the hole in the bottom of the housing faces the chain tensioner and the piston faces the tensioning rail.

Replace the bolts that were tightened with an additional turn.

CAUTION:

Risk of damaging valves and piston crowns.

If camshafts are rotated, crankshaft may not rest with any piston at "TDC".

-- Position the left camshaft timing chain according to the markings made during removal as shown in the illustration.

Fig 1: Left Cylinder Head Chain Tensioner and Locking Pin T40071

Courtesy of AUDI OF AMERICA, LLC

-- Press the guide rail for the left camshaft timing chain tensioner down and secure the chain tensioner using a Locking Pin T40071.

-- Guide the camshaft timing chain upward toward the cylinder head. Pay close attention to the markings when removing.

-- Install the drive chain sprocket, refer to Figure.

NOTE:

Ignore -arrow-.

-- Tighten the drive chain sprocket mounting pin bolt -1-.

-- Remove the Locking Pin T40071.

Fig 2: Chain Tensioner Using T40071

Courtesy of AUDI OF AMERICA, LLC

-- Insert the chain tensioner at the right cylinder head and position the camshaft timing chain.

-- Tighten the bolts -1- and -2-.

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

-- Position the camshaft timing chain on the camshafts, refer to CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS .

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

Fig 3: Right Cylinder Head Chain Tensioner and Locking Pin T40071

Courtesy of AUDI OF AMERICA, LLC