Valve Guides, Checking

Special tools and workshop equipment required 

• Dial Gauge Holder: VW387 
• Dial Gauge - 0-10mm: VAS6079 

Test Sequence

Fig 1: Identifying Dial Gauge With Holder

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Insert the valve into guide. The valve stem end must be flush with the guide. Due to differences in valve stem diameter, only use intake valves in intake valve guides, and exhaust valves in exhaust valve guides.

-- Determine the tilting clearance.

• Wear limit: 0.5 mm.

-- If the wear limit is exceeded, measure using new valves.

-- Replace the cylinder head if the wear limit is still exceeded.