Camshaft Timing Chain: Installing

WARNING: This page is about a different car, the 2010 Audi Q7, 2009 Audi Q7, 2008 Audi Q7, and 2007 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

Tightening specifications, refer to CAMSHAFT TIMING CHAIN OVERVIEW .

NOTE:

If the tensioning element is to be removed from the chain tensioner, observe the installed position: Hole in housing floor faces toward chain tensioner, piston faces toward tensioning rail.

Replace bolts which have been tightened to torque.

Replace the gasket.

CAUTION:

Risk of damaging valves and piston crowns.

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

-- Press left and right camshaft timing chain guide rail inward -arrow- as far as stop and secure chain tensioner with T40071.

Fig 1: Pressing Left/Right Camshaft Timing Chain Guide Rail Inward And Securing Chain Tensioner With Locking Pin T40071

Courtesy of AUDI OF AMERICA, LLC

-- Clean oil strainer -2- in both chain tensioners if necessary.

Fig 2: Identifying Chain Tensioner Oil Screen, Gasket & Chain Tensioner

Courtesy of AUDI OF AMERICA, LLC

-- Place a new gasket -3- onto the rear of the chain tensioner -1-.

-- Insert chain tensioner in left cylinder head and position camshaft timing chain according to mark applied during removal, as shown in illustration.

-- Tighten bolts -1 and 2-.

Fig 3: Identifying Bolts For Left Chain Tensioner And Left Camshaft Timing Chain

Courtesy of AUDI OF AMERICA, LLC

-- Insert chain tensioner in right cylinder head and position camshaft timing chain according to mark applied during removal, as shown in illustration.

Fig 4: Identifying Bolts For Right Chain Tensioner And Right Camshaft Timing Chain

Courtesy of AUDI OF AMERICA, LLC

-- Tighten bolts -1 and 2-.

Further installation is in reverse order of removal, note the following:

-- Position camshaft timing chains on camshafts Installing .

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

-- Install oil filter housing. Refer to OIL FILTER HOUSING .

-- Install intake manifold. Refer to INTAKE MANIFOLD, REMOVING AND INSTALLING .

-- Install left and right timing chain covers Installing .

-- Install cylinder head cover. Refer to LEFT CYLINDER HEAD COVER , right RIGHT CYLINDER HEAD COVER .

-- Install drive plate. Refer to DRIVE PLATE .