EM/Engine Mechanical, page 47

ENGINE MECHANICAL — Cylinder Head                                    EM-47

(d) Hand-lap the valve and valve seat with an abrasive
    compound.

13. INSPECT VALVE SPRINGS
    (a) Using a steel square, measure the squareness of the
        valve springs.
    Maximum squareness: 1.5 mm (0.059 in.)
    If squareness is greater than maximum, replace the valve
    spring.

    (b) Using calipers, measure the free length of the valve
        spring.
    Free length: 41.64 mm (1.6394 in.)
    If the free length is not within specification, replace the
    valve spring.

    (c) Using a spring tester, measure the tension of the valve
        spring at the specified installed length.
    Installed tension:
    16.0 kg (35. lb. 157 N) at 35.0 mm (1.378 in.)
    If the installed tension is not as specified, replace the valve
    spring.

14. INSPECT CAMSHAFT AND BEARING CAPS
    (a) Place the camshaft on V blocks and, using a dial
        gauge, measure the circle runout at the center journal.
    Maximum circle runout: 0.03 mm (0.0012 in.)
    If circle runout is greater than maximum, replace the
    camshaft.