Valve guides, checking

Special tools, testers and auxiliary items required

Fig 1: Identifying Dial Gauge Holder VW 387

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Fig 2: Identifying Dial Gauge VAS 6079

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Test sequence

Fig 3: Identifying Special Tool - VW 387 Installed

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Insert valve into guide. Valve stem end must be flush with the guide. Due to the slight difference in stem dimensions, ensure that only an intake valve is used in the intake guide and an exhaust valve in the exhaust guide.
Determine tip clearance.

Wear limit

Intake valve guide	Exhaust valve guide
0.80 mm	0.80 mm

NOTE:

If wear limit is exceeded, re-measure using new valves. If wear limit is still exceeded, replace cylinder head.
If the valve is to be replaced as part of a repair, use a new valve for the calculation.