Camshaft Timing Chain, Removing And Installing: Installing

WARNING: This page is about a different car, the 2023 Volkswagen Atlas. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Check The Crankshaft @ TDC

Courtesy of AUDI OF AMERICA, LLC

-- Check that the crankshaft is at TDC. The flat area on the crankshaft -arrow- must be horizontal.

-- Draw the markings on the cylinder block -1-, as shown, with a waterproof marker.

-- Draw a marking -2- on the three stage chain sprocket tooth -1- with a waterproof marker.

Fig 2: Draw Marking On Three Stage Chain Sprocket Tooth

Courtesy of AUDI OF AMERICA, LLC

-- Turn the intermediate sprocket and balance shaft to the marks -arrow-, but do not loosen the bolt -1-. The marks on the intermediate sprocket and the balance shaft are difficult to see.

Fig 3: Identifying Intermediate Shaft Sprocket

Courtesy of AUDI OF AMERICA, LLC

-- Lay the balance shaft drive chain, and position the painted links -arrows- on the chain sprocket markings.

Fig 4: Identifying Chain Sprockets

Courtesy of AUDI OF AMERICA, LLC

-- Install the guide rail -1- and tighten the bolts -arrows-.

Fig 5: Identifying Guide Rail And Tighten Bolts

Courtesy of AUDI OF AMERICA, LLC

-- Engage the camshaft timing chain with the painted links -arrows- on the camshaft pins.

Fig 6: Camshaft Timing Chain And Camshaft Sprocket

Courtesy of AUDI OF AMERICA, LLC

-- Lay the oil pump drive timing chain onto the three stage chain sprocket.

Fig 7: Identifying Three Stage Chain Sprocket

Courtesy of AUDI OF AMERICA, LLC

-- Tilt the three stage chain sprocket in the -direction of the arrow- toward the engine and secure it to the crankshaft. The marks -arrows- must be positioned opposite each other.

Fig 8: Identifying Assembly Tool - Turning Over Tool T10531/3

Courtesy of AUDI OF AMERICA, LLC

I -

Install the Assembly Tool - Tensioning Pins:T10531/2 in the crankshaft and tighten hand-tight.

II -

Install the Assembly Tool - Turning Over Tool:T10531/3 . Tighten the Assembly Tool - Knurled Nut:T10531/4 hand-tight. Using a 32 mm open end wrench move the Assembly Tool - Turning Over Tool back and forth slightly while doing this tighten the Assembly Tool - Knurled Nut until the chain sprocket is seated securely on the crankshaft splines. Now tighten the adjusting bolt -A-.

-- Position the painted chain link in the balance shaft drive chain -arrow- at the mark on the three stage chain sprocket. Install the tensioning rail -1- and the guide rail -2-. Tighten the bolts -3-.

Fig 9: Identifying Painted Chain Link In Balance Shaft Drive Chain

Courtesy of AUDI OF AMERICA, LLC

-- Install the chain tensioner -1-.

Fig 10: Chain Tensioner And Balance Shaft Timing Chain

Courtesy of AUDI OF AMERICA, LLC

-- Check the adjustment again. The painted chain links -arrows- must line up with the markings on the chain sprockets.

Fig 11: Identifying Painted Chain Links

Courtesy of AUDI OF AMERICA, LLC

-- Place the camshaft timing chain on the intake camshaft, exhaust camshaft and the crankshaft. Position the painted chain links -arrows- on the markings on the chain sprockets.

Fig 12: Camshaft Timing Chain And Intake Camshaft

Courtesy of AUDI OF AMERICA, LLC

-- Install the guide rail -2- and tighten the bolts -1-.

Fig 13: Removing Glide Rail

Courtesy of AUDI OF AMERICA, LLC

-- Install the upper guide rail -1-.

Fig 14: Removing Guide Rail

Courtesy of AUDI OF AMERICA, LLC

The help of a second technician is necessary for the following step.

Courtesy of AUDI OF AMERICA, LLC

I -

Turn the exhaust camshaft slightly in the direction of the arrow -A- using the Adapter:T40266 and push the Camshaft Lock:T40271/1 out of the chain sprocket splines -B-.

II -

Release the camshaft in the direction -C-, until the timing chain touches the guide rail -1-. Hold the camshaft in this position, install the tensioning rail -2- and tighten the bolts -3-.

NOTE:

If the camshaft is not counterheld until the tensioning rail is installed, the timing chain may come off.

-- Install the chain tensioner -1- and tighten the bolts -arrows-.

Fig 15: Bolts And Chain Tensioner

Courtesy of AUDI OF AMERICA, LLC

-- Install the chain tensioner -2-. The wire clip -arrow- must come in to contact with the oil pan upper section opening. Tighten the bolt -1- and remove the Locking Pin (3 pc.):T40011 .

Fig 16: Identifying Chain Tensioner

Courtesy of AUDI OF AMERICA, LLC

-- Turn the intake camshaft with the Adapter:T40266 in the direction of the arrow -1- until the Camshaft Lock:T40271/2 can be pushed out of the chain sprocket splines -2-. Release the camshaft.

Fig 17: Identifying Assembly Tool T40266 And Camshaft Clamp T40271/2

Courtesy of AUDI OF AMERICA, LLC

-- Remove the Camshaft Locks:T40271/1 and :T40271/2 .

-- Check the adjustment. The painted chain links -arrows- must line up with the markings on the chain sprockets.

Courtesy of AUDI OF AMERICA, LLC

-- Install the bolts -arrows- and tighten them. Tightening specification. Refer to OVERVIEW - CYLINDER HEAD => List Item:Bolt.

Fig 18: Identifying Bolts

Courtesy of AUDI OF AMERICA, LLC

-- Lubricate the holes -arrows- with engine oil.

Courtesy of AUDI OF AMERICA, LLC

NOTE:

The adapter sleeve -1- must be driven back before reusing the bearing bracket. The adapter sleeve must be flush with the cylinder head side of the bearing bracket.

-- Attach the bearing mount. Do not tilt it when doing this. Tighten the bolts -1 to 6- hand-tight.

Fig 19: Bearing Bracket (With Aluminum Bolts) Tightening Sequence

Courtesy of AUDI OF AMERICA, LLC

-- The adapter sleeve will be pulled in the cylinder head with the bolt -1-.

-- Remove the Tensioner Locking Tool:T40267 .

Fig 20: Securing Chain Tensioner With T40267

Courtesy of AUDI OF AMERICA, LLC

-- Tighten the bearing bracket bolts -arrows-. Tightening specification. Refer to Figure.

Fig 21: Identifying Bolts

Courtesy of AUDI OF AMERICA, LLC

-- Install the control valves OVERVIEW - CAMSHAFT TIMING CHAINS => List Item:Control Valves.

-- Let the engine turn a second time in the direction of engine rotation.

NOTE:

Due to the ratio, the painted chain links no longer match up after the engine has been turned.

-- Remove the turning over tool and install the lower timing chain cover. Refer to Installing .

Fig 22: 8 Bolt Timing Chain Lower Cover Bolt Tightening Sequence

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Tighten the bolts -1- and -4- with an additional turn after installing the vibration damper. The bolts must be removed again to install the vibration damper.

-- Install the vibration damper. Refer to VIBRATION DAMPER, REMOVING AND INSTALLING .

-- Install the upper timing chain cover. Refer to TIMING CHAIN COVER, REMOVING AND INSTALLING .

-- Install the ribbed belt tensioner. Refer to RIBBED BELT TENSIONER, REMOVING AND INSTALLING .

-- Install the ribbed belt. Refer to RIBBED BELT, REMOVING AND INSTALLING .

Install in reverse order of removal. Note the following:

-- After performing work on the chain drive the adaptation value in the engine control module must be adapted. To do so, turn on the ignition and select the following menu items on the Vehicle Diagnostic Tester:

Engine control module, functions

0001 - Adaptation after repair work on chain drive