Valve Guide Seal: Service and Repair

Valve Stem Seals

(with Cylinder Head Installed)

Special tools, testers and auxiliary items required

• Valve Lever (VW 541/1A) with Press Tool for VW 541/1A and 2037 (VW 541/6)

• Adjustable Rod (2036) with Adapter Plates (2036/1)

• Spark Plug Removal Tool (3122 B)

• Valve Seal Removal Tool (3364)

• Valve Stem Seal Driver (3365)

• Adapter (T40012)

• Torque Wrench (5-50 Nm) (V.A.G 1331)

Removing

- Remove the camshafts. Refer to => [ Camshafts ] Service and Repair.

- Remove the roller rocker lever together with the support element and place them on a clean surface.

- Remove the spark plug using (3122 B).

- Move the piston for the respective cylinder to the Bottom Dead Center (BDC) position.

- Install the (2036) using the (2036/1) to the cylinder head.

- Install the (T40012) and the (T40012/1) into the spark plug threaded hole.

- Connect a commercially available adapter to the compressed air line and maintain a steady pressure of at least 6 bar.

- Remove the valve springs using (VW 541/1 A) and (VW 541/6).

• Tight retainers can be loosened by tapping lightly on the (VW 541/1 A).

- Remove valve stem seals using (3364).

Installing

- Place plastic sleeve - A - on the valve stem to prevent damage to new valve stem seals.

- Oil the sealing lip of the valve stem oil seal - B -, install it into the (3365) and carefully slide it onto the valve guide.

- Install the camshafts. Refer to => [ Camshafts ] Service and Repair.

Camshaft Axial Play, Checking

Special tools, testers and auxiliary items required

• Dial Gauge Holder (VW 387)

• Dial gauge

Sequence

Perform the measurements with the support elements and roller rocker levers removed.

Center bearing cap of respective camshaft installed.

Wear limit: maximum 0.40 mm

Camshaft Identification, Valve Timing

Camshaft Identification

The identification is located between the No. 4 and No. 5 cylinders of the respective camshaft.

Valve Timing at 1 mm Valve Lift

Valve Dimensions

• Valves must not be reground. Only lapping is permitted.

Intake Valves

Exhaust Valves