Do not remove valve guides (15) and valve seat inserts (16) unless they are damaged. c. Cleaning and ... Clean all dirt and deposits from the cooling fins with a scraper or putty knife. (2) Clean all other parts with cleaning solvent; dry thoroughly. ... (8) Inspect the valves for burned, pitted, or cracked faces; replace if defective or if grinding is not plausible. d. ... (8) With the valve stems inserted in the guide, the stems shall have a clearance of 0.0025 to 0.0045 inch (0.006 to 0.011 cm).
|Title||:||Operator, Oganizational, Direct Support, and General Support Maintenance Manual|