Camshaft Timing Chain, Removing From Camshafts: Installing

WARNING: This page is about a different car, the 2016 Audi Q5, 2015 Audi Q5, and 2014 Audi Q5. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Crankshaft Holder 3242

Courtesy of AUDI OF AMERICA, LLC

Secure crankshaft -1- in "TDC" position using Locking Pin For Crankshaft T40237.

Tightening specifications:

Refer to OVERVIEW - CAMSHAFT TIMING CHAIN .
Refer to OVERVIEW - OIL PAN/OIL PUMP, OIL PAN UPPER SECTION .

NOTE:

Replace any bolts that were tightened with an additional turn.

Replace the locking bolt seal for the "TDC" marking.

-- Check whether camshafts of both cylinder heads stand at "TDC" position.

Fig 2: Identifying Camshaft Adjustment Pins T40060 (Right Cylinder Head)

Courtesy of AUDI OF AMERICA, LLC

It must be possible to secure the camshafts with the Camshaft Adjustment Pins T40060.
The bolt -arrow- in the Camshaft Adjustment Pins T40060 must be perpendicular to the center line of the camshaft on cylinder bank 1 (right).

The bolt -arrow- in the Camshaft Adjustment Pins T40060 must be perpendicular to the center line of the camshaft on cylinder bank 2 (left).

Fig 3: Identifying Camshaft Adjustment Pins (Left Cylinder Head)
Courtesy of AUDI OF AMERICA, LLC

-- Remove the Camshaft Adjustment Pins T40060 from both camshafts.

Fig 4: Identifying Camshaft Correction Tool T40061

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

Risk of damaging valves and piston crowns.

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

NOTE:

If the camshafts are not secured, it is possible to correct them slightly with the Camshaft Correction Tool T40061 by installing the camshaft chain sprocket on the camshaft.

-- Install the left chain sprocket with the camshaft timing chain.

Fig 5: Installing Camshaft Chain Sprocket (Left Cylinder Head)

Courtesy of AUDI OF AMERICA, LLC

The slots in the camshaft chain sprocket must be at the middle position in relation to the threaded holes in the camshaft.

-- Next, loosely install two bolts -1- for the camshaft chain sprocket.

It must still be possible to rotate the camshaft chain sprocket on the camshaft and it must not tip.

-- Secure the left camshaft with the Camshaft Adjustment Pins T40060.

The bolt -arrow- in the Camshaft Adjustment Pins T40060 must be perpendicular to the center axis of the camshaft.

-- Install the right camshaft chain sprocket with the camshaft timing chain.

Fig 6: Installing Right Camshaft Chain Sprocket

Courtesy of AUDI OF AMERICA, LLC

The slots in the camshaft chain sprocket must be at the middle position in relation to the threaded holes in the camshaft.

-- Next, loosely install two bolts -1- for the camshaft chain sprocket.

It must still be possible to rotate the camshaft chain sprocket on the camshaft and it must not tip.

-- Secure the right camshaft with the Camshaft Adjustment Pins T40060.

The bolt -arrow- in the Camshaft Adjustment Pins T40060 must be perpendicular to the center axis of the camshaft.

-- Remove the Chain Tensioner Mounting Bracket T40246.

Fig 7: Securing Chain Tensioner Mounting Bracket T40246 (As Shown)

Courtesy of AUDI OF AMERICA, LLC

-- Have a 2nd technician tension the right camshaft chain sprocket clockwise -arrow- with the Chain Sprocket Tensioner T40062 and the torque wrench to 20 Nm and maintain the pretension.

Fig 8: Identifying Bolts And Chain Sprocket Tensioner T40062

Courtesy of AUDI OF AMERICA, LLC

-- Tighten the bolts -1 and 2- to the right camshaft chain sprocket.

-- Continue to maintain the pretension and tighten the bolts -1- to the left camshaft chain sprocket.

Fig 9: Installing Camshaft Chain Sprocket (Left Cylinder Head)

Courtesy of AUDI OF AMERICA, LLC

-- Remove Chain Sprocket Tensioner T40062 and Camshaft Adjustment Pins T40060.

-- Tighten the remaining bolts for the left and right camshaft chain sprocket.

-- Remove the Crankshaft Holder 3242.

Fig 10: Crankshaft Holder 3242

Courtesy of AUDI OF AMERICA, LLC

Checking the Valve Timing

CAUTION:

Components could be damaged by the camshaft timing chain jumping off.

Turn crankshaft only in direction of engine rotation -arrow-.

-- Turn the crankshaft two turn until the crankshaft is just in front of "TDC".

Fig 11: Turning Crankshaft

Courtesy of AUDI OF AMERICA, LLC

-- Lock the crankshaft -1- from turning using the Crankshaft Key 3242 to 20 Nm.

Fig 12: Crankshaft Holder 3242

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

An inaccurate "TDC" setting will cause an inaccurate setting.

If the crankshaft was turned past "TDC" : Turn the crankshaft again 2 turns until it is just in front of "TDC". Then use the Crankshaft Holder 3242 to keep crankshaft from turning.

-- Check whether camshafts of both cylinder heads stand in "TDC" position.

Fig 13: Installing Camshaft Adjustment Pins T40060

Courtesy of AUDI OF AMERICA, LLC

It must be possible to secure the camshafts with the Camshaft Adjustment Pins T40060.
The bolt -arrow- in the Camshaft Adjustment Pins T40060 must be perpendicular to the center line of the camshaft on cylinder bank 1 (right).

The bolt -arrow- in the Camshaft Adjustment Pins T40060 must be perpendicular to the center line of the camshaft on cylinder bank 2 (left).

Fig 14: Installing Camshaft Adjustment Pins T40060 (Left Cylinder Head)
Courtesy of AUDI OF AMERICA, LLC

Correcting the Valve Timing

Fig 15: Camshaft Sprocket Bolts (Left Cylinder Head)

Courtesy of AUDI OF AMERICA, LLC

-- If one of the camshafts does not lock, loosen all the bolts -arrows- for that particular camshaft chain sprocket about 1 turn.

-- Mount the Camshaft Correction Tool T40061 over the bolt heads.

Fig 16: Identifying Camshaft Correction Tool T40061

Courtesy of AUDI OF AMERICA, LLC

-- Turn the camshaft by the Camshaft Correction Tool T40061 just a little back and forth until it is possible to insert the Camshaft Adjustment Pins T40060.

The bolt -arrow- in the Camshaft Adjustment Pins T40060 must be perpendicular to the center axis of the camshaft.

Fig 17: Installing Camshaft Adjustment Pins T40060 (Left Cylinder Head)
Courtesy of AUDI OF AMERICA, LLC

-- Tighten the bolts for the camshaft chain sprocket with the Camshaft Correction Tool T40061 and the Camshaft Adjustment Pins T40060 still attached to approximately 5 Nm.

-- Remove the Camshaft Adjustment Pins T40060 and the Camshaft Correction Tool T40061.

-- Tighten the camshaft chain sprocket bolts to final torque.

-- Repeat the procedure on the other cylinder bank if necessary.

-- Remove the Crankshaft Holder 3242.

-- Check the valve timing once again, refer to INSTALLING - "Checking the Valve Timing " (See Fig 11).

The rest of the installation is performed in reverse order of removal, noting the following:

-- Install the upper timing chain covers, refer to TIMING CHAIN COVER, REMOVING AND INSTALLING .