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Home >> Audi >> 2017 >> TT Quattro Base, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Cylinder Head, VALVETRAIN [DAZA,DNWA] (1 Of 2) [Coupe]) >> 15 Cylinder Head, VALVETRAIN >> Timing Chain Cover >> Timing Chain Cover, Removing And Installing >> 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 2018 Audi TT Quattro. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Locating Alignment Sleeves
GWWA15-10635Courtesy of AUDI OF AMERICA, LLC

-- Drive back the alignment sleeves -arrows- into the lower timing chain cover, until they no longer project over the sealing surface.

CAUTION:

Risk of contaminating the lubricating system.

  • Cover open engine components.
Fig 2: Cleaning Sealing Surfaces
GWWA17-10940Courtesy of AUDI OF AMERICA, LLC
WARNING:

Risk of eye injury.

  • Wear protective eyewear!

-- Remove any sealant residue still on the lower timing chain cover -1-, cylinder block and oil pan upper section using, for example, a rotating plastic brush.

-- Clean any oil or grease off the sealing surfaces.

Fig 3: Identifying Cylinder Head Gasket Protrusion
GWWA15-10722Courtesy of AUDI OF AMERICA, LLC
CAUTION:

Risk of damaging the cylinder head gasket.

  • Bend the end of the cylinder head gasket only slightly, do not kink it.

-- Bend the end of the cylinder head gasket downward slightly in direction of -arrows- only until the upper sealing surface of the gasket and cylinder head can also be cleaned.

-- Clean any oil and grease off the upper and lower cylinder head gasket.

-- Cut the tube nozzle at the front marking (nozzle diameter: about 2.5 mm).

-- Apply a thin coat of sealant on the sealing surface of the upper and lower cylinder head gaskets. To do so, slightly bend the cylinder head gasket downward again in direction of -arrows-.

Fig 5: Identifying Cylinder Head Gasket Protrusion
GWWA15-10722Courtesy of AUDI OF AMERICA, LLC

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

-- Apply a thin sealant bead on the edge between the cylinder block and cylinder head gasket and cylinder head gasket -arrow-.

Fig 6: Identifying Cylinder Head Gasket Holes
GWWA15-10663Courtesy of AUDI OF AMERICA, LLC

-- Insert the sealing sleeve -1- and O-ring -2-.

GWWA15-11456Courtesy of AUDI OF AMERICA, LLC
CAUTION:

There is a risk that the lubrication system could be blocked by excess sealant.

  • Do not apply sealant bead thicker than indicated.

-- Apply a sealant bead -arrow- to the clean sealing surface of the lower timing chain cover.

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

-- When positioning, make sure that the cylinder head gasket is not damaged.

-- First insert the lower timing chain cover screws by hand all the way.

-- Drive the alignment sleeves from the respective lower timing chain cover all the way into the cylinder block.

-- Tighten the bolts for the lower timing chain cover.

-- After installing apply a sealant bead -arrow- from the top inward in the inner seam on the cylinder head gasket.

GWWA15-12043Courtesy of AUDI OF AMERICA, LLC

Further installation is performed in reverse order of removal, while noting the following:

-- Install the Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, REMOVING AND INSTALLING .

-- Install the brake booster vacuum pump. Refer to VACUUM PUMP, REMOVING AND INSTALLING .

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

-- Bring the : T40299  into the installation position and tighten, and slightly tension the : 10-222A/11  front left of the Extractor.

-- Install the crankshaft seal on the transmission side. Refer to UPPER TIMING CHAIN COVER SEAL, REPLACING .

-- Install the flywheel. Refer to FLYWHEEL, REMOVING AND INSTALLING .