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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 1205 (Cylinder Head, VALVETRAIN [CALA] (Coupe)) >> 15 Cylinder Head, VALVETRAIN >> Timing Chain Cover >> Lower Timing Chain Cover, Removing And Installing >> Installing

Lower Timing Chain Cover, Removing And Installing: Installing

WARNING: This page is about a different car, the 2010 Audi A5, 2009 Audi A5, and 2008 Audi A5. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Chamfer Alignment Bushing With File
GWWA13-10053Courtesy of AUDI OF AMERICA, LLC
NOTE:

Replace Seals, Gaskets And O-Rings. 

-- Remove the right upper alignment bushing from the cylinder block.

-- Grind the alignment bushing down at an angle as shown in the illustration.

-- Insert the alignment bushing in the cylinder block so the angled side faces up.

NOTE:

Because of the chamfer, the lower timing chain cover can be positioned more easily when the cylinder head is installed.

Fig 2: Cleaning Sealing Surfaces
GWWA17-10940Courtesy of AUDI OF AMERICA, LLC
CAUTION:

Risk Of Contaminating The Lubricating System.

  • Cover open parts of engine.
WARNING:

Danger Of Eye Injury.

  • Wear protective eyewear.

-- Remove the sealant residue on the cover for the timing chain, cylinder block and cylinder head, for example using a rotating plastic brush.

-- Clean the sealing surfaces. They must be free of oil and grease.

-- Clean the threaded holes in the cylinder block for connecting the engine and transmission using a thread tap before installing the transmission.

-- Clean old sealant out of the holes -arrow- in the cylinder head seals.

Fig 3: Cleaning Old Sealant From Holes In Cylinder Head Gaskets
GWWA13-10054Courtesy of AUDI OF AMERICA, LLC
NOTE:

With Cylinder Head Installed, Holes In Cylinder Head Seal Are Only Half Visible.

Fig 4: Bending Cylinder Head Gasket Ends Down
GWWA13-10140Courtesy of AUDI OF AMERICA, LLC
CAUTION:

The Cylinder Head Seal Could Be Damaged.

  • Only bend ends of cylinder head seals slightly, do not kink.
NOTE:

A Kinked Cylinder Head Seal Must Be Replaced.

-- Bend the end of the cylinder head seals down slightly -arrows- until the upper sealing surface of the seals and the cylinder head can be cleaned.

-- Clean the top and bottom of the cylinder head seals so they are free of oil and grease.

NOTE:

Note The Expiration Date Of The Sealing Compound.

Fig 5: Cut Tube Nozzle At Front Marking
GWWA17-0081Courtesy of AUDI OF AMERICA, LLC

-- Cut the tube nozzle at the front marking (nozzle diameter: about 2 mm).

NOTE:

The Sealant Must Be Applied To Several Places On The Engine, As Described In The Following.

-- Lightly the coat top and bottom cylinder head seal sealing surfaces with lubricant by bending the seals down slightly again -arrows-.

Fig 6: Bending Cylinder Head Gasket Ends Down
GWWA13-10140Courtesy of AUDI OF AMERICA, LLC

-- Use a flat object such as a feeler gauge to coat the surface between the cylinder head and seal.

-- Fill the cleaned cylinder head seal holes -arrow- with sealant.

Fig 7: Cleaning Old Sealant From Holes In Cylinder Head Gaskets
GWWA13-10054Courtesy of AUDI OF AMERICA, LLC
Fig 8: Applying Sealant Beads (Version 1)
GWWA15-10504Courtesy of AUDI OF AMERICA, LLC
CAUTION:

The Lubrication System Could Be Plugged With Excess Sealant.

  • Do not apply sealant bead thicker than indicated.

-- Apply the sealant beads -1 through 4- on the clean lower timing chain cover sealing surfaces as shown in the illustration.

NOTE:

The Sealant Only Needs To Cure For Approximately 5 Minutes After Applying.

-- Insert the seals -arrows- in the grooves on the lower timing chain cover.

-- Position the lower timing chain cover, guiding it diagonally from below to the sealing surface on the cylinder block and cylinder head.

-- When positioning, ensure the cylinder head seals are not damaged.

-- Tighten the bolts for the lower timing chain cover. Refer to Figure.

Fig 9: Identifying Lower Timing Chain Cover Bolt Loosening And Tightening Sequence
GWWA15-10503Courtesy of AUDI OF AMERICA, LLC

Install In Reverse Order Of Removal. Note The Following: 

-- Install the starter. Refer to STARTER .

-- Install the generator. Refer to GENERATOR .

-- Install the oil filter housing. Refer to OIL FILTER HOUSING, REMOVING AND INSTALLING .

-- Install the left and right timing chain covers. Refer to Installing .

-- Install the crankshaft seal on the transmission side. Refer to CRANKSHAFT SEAL, REPLACING, TRANSMISSION SIDE .

-- Install the drive plate. Refer to DRIVE PLATE, REMOVING AND INSTALLING .

-- Fill the engine oil and check the oil level. Refer to ENGINE OIL, CHECKING LEVEL .