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Home >> Audi >> 2011 >> TT S, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 88 (3.2L - Cylinder Head, VALVETRAIN - Engine Code(S): CBRA (Roadster)) >> 15 Cylinder Head, VALVETRAIN >> Specifications >> Valve Seats, Refacing >> Notes

Valve Seats, Refacing: Notes

WARNING: This page is about a different car, the 2009 Audi TT and 2008 Audi TT. However, it is still accessible from the selected car via links, so may be relevant.

If a perfect contact pattern is not achieved by grinding the valve seats, reface them.

NOTE:

If an engine with leaking valves is serviced, refacing or replacing valve seats and valves is not sufficient. The valve guides must be checked for wear, especially on engines with high mileage. Refer to VALVE GUIDES, CHECKING .

Only refaced valve seats enough to achieve a suitable contact pattern.

Calculate maximum permissible reworking dimension before reworking valve seats.

Special tools and workshop equipment required 

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