Cylinder Head Deck Flatness Inspection Opel Antara I

Cylinder Head Deck Flatness Inspection

Inspect

1. Ensure the cylinder head decks are clean and free of gasket material.
2. Inspect the surface for any imperfections or scratches that could inhibit correct cylinder head gasket sealing.
3. Place a straight-edge (1) diagonally across the cylinder head (2) deck face surface.
4. Measure the clearance between the straight-edge and the cylinder head deck face using a feeler gauge at four points along the straight-edge.
5. If the warpage is less than 0.05 mm, the cylinder head deck surface does not require resurfacing.
6. If the warpage is between 0.05±0.20 mm or any imperfections or scratches that could inhibit correct cylinder head gasket sealing are present, the cylinder head deck surface requires resurfacing.
7. If resurfacing is required the maximum amount that can be removed is 0.25 mm.
8. If the cylinder head deck surface requires more than 0.25 mm material removal the head must be replaced.