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Contents Section: 3.2l - Cylinder Head, Valvetrain - Engine Code(s): Bub & Cbra All sections

Installing Audi A3 8P рестайлинг 2

3.2l - Cylinder Head, Valvetrain - Engine Code(s): Bub & Cbra 1 illustration ~422 words

Installing

  1. Tightening specifications, refer to «VALVETRAIN COMPONENT OVERVIEW»(/audi/a3/8p-2-2008-2013/remont/mechanical/#32l-cylinder-head-valvetrain-engine-codes-bub-cbra__valvetrain-component-overview), (Scheme 15).

Note. When installing camshafts, crankshaft must not be at TDC with any piston. Valves and/or pistons may be damaged. After installing the camshafts, the engine may not be started for approximately 30 minutes. The hydraulic adjusting elements must seat themselves (otherwise the valves will seat themselves on the pistons). After working on the valvetrain and lifters, carefully rotate the crankshaft by hand at least 2 full revolutions before starting to be sure that valves do not strike the pistons.

Install the hydraulic adjusting elements into the cylinder head.

Lay roller rocker lever -1- on valve stem ends and clip in the hydraulic adjusting elements -2-.

Scheme 88

Scheme 88
Scheme 88

Oil journal surfaces of camshafts.

Place respective camshaft into camshaft bearings of cylinder head.

Note camshaft identification between cylinder 4 and cylinder 5 cam pair

A - Exhaust camshaft - Identification 022 - Index 101

B - Intake camshaft - Identification 022 - Index 102

Install the camshafts into the cylinder head in such a way so that the cams -A- on cylinder 1 are pointing toward each other.

Observe installed position of bearing caps

  1. Points -arrow A- of intake and exhaust camshaft bearing caps face outwards.
  2. Identification on bearing caps is legible when read from intake side.

Lightly coat bearing cap 7 and 8 contact surface -hatched area- with adhesive lubricating paste.

Install intake camshaft -A- as follows

  1. Fasten bearing caps 5 and 9 alternately and diagonally and then tighten to specified torque.
  2. Fasten bearing caps 1 and 13.
  3. Fasten bearing cap 7.
  4. Fasten bearing caps 3 and 11.

Install exhaust camshaft -B- as follows

  1. Fasten bearing caps 6 and 10 alternately and diagonally and then tighten to specified torque.
  2. Fasten bearing caps 2 and 14.
  3. Fasten bearing cap 8.
  4. Fasten bearing caps 4 and 12.

Position camshafts in cylinder head to TDC.

  1. It must be possible to insert T10068 A into both shaft grooves.

If necessary, turn camshafts at hex head surfaces -arrows- to correct position using open end wrench SW 32.

Note. When turning camshafts, crankshaft must not be at TDC with any piston. Valves and/or pistons may be damaged.

Unclip screen -2- at backside of control housing -1- and remove any contaminants.

Lightly oil camshaft seal contact surfaces in control housing.

Lightly oil sealing ring contact surfaces of camshafts and carefully slide control housing over camshaft sealing rings.

Tighten control housing -arrows-.

Install camshaft timing chain (adjust valve timing) CAMSHAFT TIMING CHAIN .

  1. 45° corresponds to 1 / 8 turn.