Renewing valve stem seals

Special tools and workshop equipment required

• Spark plug socket - 3122 B-
• Valve spring tool - 3362- with thrust piece 3362/1.
• Valve stem seal puller - 3364-
• Valve stem seal fitting tool - 3365-
• Pressure hose - VW 653/3-

Removing

(With cylinder head installed)

• First remove main drive toothed belt ⇒ 1.3 Removing, installing and tensioning toothed belt.
• Then remove camshaft housing ⇒ 1.5 Removing and installing camshaft housing.

• Remove roller rocker fingers and place onto a clean surface. When doing this, ensure that roller rocker fingers are not interchanged.
• Unscrew spark plugs using spark plug socket and extension - 3122 B-.
• Set piston of respective cylinder to “bottom dead centre”.

• Screw on valve spring tool - 3362- with thrust piece 3362/1.
• Screw pressure hose - VW 653/3- into spark plug thread.
• Connect pressure hose to compressed air system supplying at least 6 bar and remove valve springs.
• Pull off valve stem seals using valve stem seal puller - 3364-.

Installing

• Place plastic sleeve supplied on respective valve stem. This will prevent damage to new valve stem seal.
• Place new valve stem seal in valve stem seal fitting tool - 3365-.
• Oil valve stem seal sealing lip and press carefully onto the valve guide.

Install camshaft housing ⇒ 1.5 Removing and installing camshaft housing.

• Install and tension toothed belt ⇒ 1.3 Removing, installing and tensioning toothed belt.

Further assembly is basically a reverse of the dismantling sequence.