Valve guide wear, checking

WARNING: This page does not describe the selected car, but rather 26 other vehicles, including the 2002 Volkswagen Cabrio, 2001 Volkswagen Cabrio, 2000 Volkswagen Cabrio, 1999 Volkswagen Jetta, and 1999 Volkswagen Golf. However, it is still accessible from the selected car via links, so may be relevant.

Place new valve in guide. Valve shaft stem end must be flush with guide.

CAUTION: Due to differences in valve stem diameter, make sure that only intake valves are used to check intake guides, and only exhaust valves are used to check exhaust guides.

Install VW387 on cylinder head, adjacent to guide being checked.
Rock valve back and forth (arrow) against dial indicator and note total travel.

Fig 1: Checking Valve Guide Wear
Courtesy of VOLKSWAGEN OF AMERICA, INC.

Wear limit:

Intake valve guide: 1.0 mm (0.040 in.)
Exhaust valve guide: 1.3 mm (0.051 in.)