Valve Guides, Checking

WARNING: This page is about a different car, the 2022 Audi S3, 2022 Audi A3 Quattro, and 2022 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Dial Indicator Holder: VW387

Fig 1: Dial Gauge Holder
Courtesy of AUDI OF AMERICA, LLC
Dial Indicator - 0-10mm: VAS 6079

Fig 2: Dial Gauge
Courtesy of AUDI OF AMERICA, LLC

Test Sequence

Fig 3: Identifying Dial Gauge With Holder

Courtesy of AUDI OF AMERICA, LLC

If the valve is to be replaced as part of a repair, use a new valve for the measurement.
Due to different stem diameters, only use an intake valve in the intake valve guide and an exhaust valve in the exhaust valve guide.

-- Place the valve in the valve guide.

Valve stem tip must seal with the valve guide.

-- Determine the tilting clearance.

Wear limit: 0.6 mm.

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

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

TIP:

The valve guides cannot be replaced.