Engine codes AEG, AVH AZG, BEV
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Fig 1: Identifying Special Tools - Camshaft, Removing And Installing (Engine Codes AEG, AVH AZG, BEV)
Special tools and equipment
- 3415 Counter support
- V.A.G 1331 Torque wrench (5 to 50 Nm)
- V.A.G 1332 Torque wrench (40 to 200 Nm)
- AM 174 004 01 Sealing compound
Removing
- Remove engine cover.
- Remove intake manifold upper part. Refer to Intake manifold upper part, removing and installing .
NOTE:
Seal the intake ports in the intake manifold lower part with a clean cloth.
- Remove toothed belt guard upper part.
- Set camshaft pulley to TDC No. 1 cylinder by turning crankshaft. Mark on camshaft pulley must align with (arrow) on toothed belt guard.
- Loosen tensioning roller and remove toothed belt from camshaft pulley.
- Turn crankshaft back slightly.
- Take camshaft pulley off. When loosening bolt hold camshaft pulley with counterhold 3415.
- Remove woodruff key from camshaft.
- Remove cylinder head cover.
- First remove bearing caps 5, 1 and 3. Tighten bearing caps 2 and 4 alternate and diagonally.
Installing
Requirements
- Pistons must not be positioned at TDC.
NOTE:
- When installing the camshaft, the cam lobes for cylinder 1 must be facing up.
- When installing the bearing cap note offset. Before installing camshaft determine installed position.
Work sequence
- Oil contact surfaces on camshaft.
- Install camshaft.
- Tighten bearing caps 2 and 4 alternately and diagonally to 20 Nm.
- Coat contact surfaces of bearing cap 1 lightly with sealing compound AMV 174 004 01.
- Install bearing caps 3, 1 and 5 and also tighten to 20 Nm.
- Install woodruff key in camshaft.
- Take camshaft pulley off. When loosening bolt hold camshaft pulley with counterhold 3415.
- Tightening torque: 100 Nm
NOTE:
When turning the camshaft the crankshaft must not be at TDC. Danger of damage to valves/piston crown.
Further installation is the reverse of removal.
Installing toothed belt and adjusting timing. Refer to Engine code BBW
NOTE:
When new hydraulic lifters have been installed the engine must not be started for about 30 minutes. The hydraulic compensation elements must settle or the valves will strike the pistons.