Measure Cylinder Head Surface

STANDARD PROCEDURE - MEASURE CYLINDER HEAD SURFACE

NOTE: DO NOT machine the cylinder head surface.

1. Disconnect negative battery cable.
2. Remove cylinder head.
3. Remove valves.
4. Inspect cylinder head contact surface for flatness, porous and damage.
5. Using a straight edge, measure cylinder head and cylinder block flatness.





6. Measure cylinder head height at point (1) indicated and retain reading (Fig. 13).

NOTE: The camshaft housing Must Not be machined. Basic bore of the camshaft bearings will be altered.

7. Measure cylinder head height (1) at point indicated, record stock removal (Fig. 13) CYLINDER HEAD SPECIFICATIONS.
8. Measure valve setback at points (2) indicated (Fig. 13) CYLINDER HEAD SPECIFICATIONS.

NOTE: If measurement is less than dimension "2" no further correct valve clearance compensation is possible; replace the cylinder head.