Audi Workshop Service and Repair Manuals

• ● Cylinder head installed
• ● Lock carrier must be in service position .

Special tools, testers and auxiliary items

• ◆ Counter-hold tool 3036

Removing

• ‒ Remove upper toothed belt guard.
• ‒ Loosen bolt for camshaft sprocket (counter-hold with 3036).

• ‒ → Set crankshaft to mark for TDC of No. 1 cylinder -arrows- by turning central bolt on crankshaft sprocket in direction of rotation .....

• ‒ → .... mark on camshaft sprocket should then align with mark on toothed belt guard. If not, turn crankshaft one turn further.

• ‒ → Release tensioner -arrows- and remove toothed belt from camshaft sprocket.
• ‒ Remove cylinder head cover .
• ‒ Pull off camshaft sprocket.
• ‒ Remove woodruff key from camshaft.
• ‒ First remove bearing caps 1, 3 and 5. Loosen bearing caps 2 and 4 alternately and diagonally.

Installing

Notes:

• ◆ Renew camshaft oil seal.
• ◆ When installing the camshaft No. 1 cylinder cams must point upwards.
• ◆ → When installing the bearing cap note offset, before installing camshaft fit bearing caps and determine fitting position.

• ‒ Oil camshaft running surfaces.
• ‒ Tighten bearing caps 2 and 4 alternately and
  diagonally to 20 Nm.
• ‒ Install bearing caps 5, 1 and 3 and also tighten to 20 Nm.
• ‒ Insert woodruff key in camshaft.

• ‒ → Install camshaft sprocket.
• ‒ Check installation position:
  The narrow web of the camshaft sprocket faces outwards -arrows- and the marking for No.1 cylinder TDC is visible from the front.
• ‒ Install securing bolt for camshaft sprocket (hold in place with counterhold tool 3036).

• ‒ Install toothed belt (adjust valve timing)
  => Page 13-35.

Notes:

• ◆ Follow all instructions for removing and installing toothed belt .
• ◆ After installing the camshaft, wait for about 30 minutes before starting the engine. The hydraulic tappets must be allowed to settle, otherwise the valves will contact the pistons.
• ◆ After working on the valve gear, turn the engine carefully at least 2 rotations to ensure that none of the valves make contact when the starter is operated.

• ‒ Install cylinder head cover .

Tightening torques