Valve Guide: Testing and Inspection

Valve Guide, Checking

Special tools, testers and auxiliary items required

• Dial Gauge Holder (VW 387)

• Dial Gauge 0-10 mm (VAS 6079)

Sequence






- Insert the valve into the valve guide.

• The valve stem tip must seal with the valve guide.

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

- Determine the tilt clearance.

• Tilt clearance wear limit: Intake and exhaust valve seat: 1.0 mm.

• If the wear limit is exceeded, measure again using new valves. If the wear limit is still exceeded, replace the cylinder head. The valve guides cannot be replaced.

• If the valve is to be replaced as part of a repair, use a new valve for the calculation.