Valve Guides, Checking: Procedure

• If valve is replaced during repair, use a new valve for 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.
• The valve guides cannot be replaced.

-- Secure the :VAS6079  with the :VW387  on the cylinder head.

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-- Place valve in valve guide.

• The end of the valve stem must be flush with the guide.

-- Determine tip clearance.

• Wear limit: 1.0 mm.

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

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