Camshaft Timing Chains: Installing

WARNING: This page is about a different car, the 2012 Audi S5, 2011 Audi S5, and 2010 Audi S5. However, it is still accessible from the selected car via links, so may be relevant.

Tightening specifications, refer to CAMSHAFT TIMING CHAINS OVERVIEW .

NOTE:

If the tensioning element was removed from the chain tensioner, note installation position: Hole in housing floor faces toward chain tensioner, piston faces toward tensioning rail.

Replace the bolts which are being 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: Identifying 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 T40071.

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

Fig 2: Securing Chain Tensioner Using T40071

Courtesy of AUDI OF AMERICA, LLC

-- Install the drive chain sprocket. Refer to Figure.

-- Tighten the mounting pin bolts -1-.

-- Remove the T40071.

NOTE:

Ignore -arrow-.

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

Fig 3: Identifying Right Chain Tensioner Bolts -1 And 2-

Courtesy of AUDI OF AMERICA, LLC

-- Fasten bolts -1 and 2-.

Install in reverse order of removal paying attention to the following:

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

-- Install timing chain lower cover. Refer to LOWER TIMING CHAIN COVER .