Cylinder Head - Rebuild (2-02) Section 2 - Cylinder Head - Group 02 M11 Page 2-18 After grinding the valve seats, use a 13 mm [0.50 inch] bristle brush to clean the inside diameter of the valve guides. Use solvent to clean the cylinder head. Dry with com- pressed air. Install a new or reconditioned valve in the valve guide. Hold the valve firmly against the valve seat insert. Use depth gauge, Part No. 3823495, to measure the valve recess in the cylinder head. Valve Recess mm in 0.76 MIN 0.030 1.17 MAX 0.046 If the valve recess does not meet the specifications given, the valve seat must be ground again or replaced. Refer to Cylinder Head Valve Seat Insert - Replacement (2-04).
Assembly Apply a coat of cup plug sealant, Part No. 3375068, to the pipe plug threads. Install the pipe plugs. NOTE: The pipe plugs (1) located in the front of the cylinder head must be installed below the surface of the cylinder head. Torque Value: 10 [8 ft-lb] Apply a coat of cup plug sealant, Part No. 3375068, to the outside diameter of the expansion plugs. Use expansion plug drivers, Part No’s. 3823372, 3376058, and 3376816, to install the expansion plugs in the cylinder head. NOTE: The correct expansion plug driver will install the expansion plugs to the correct depth in the cylinder head.