Cylinder head and Valves/Valve seats CTM3274 (01JUL99) 05-14 Saran Liter Engines 060799 PN=51 REMOVE VALVE SEAT INSERTS Valve seat inserts are made of sintered metal. Following method, performed by experienced personnel or specialized workshop, can be used to remove inserts. -UN-10NOV97 • Using an arc welder 1. Protect the valve guide by installing a cap screw or dowel in guide to protect from weld spatter. RG7761 2. Protect the cylinder head surface with a non-flammable welder’s cloth (A). Apply a thin bead of weld (B) around internal diameter of valve seat insert. Allow insert to cool and use a screwdriver (C) or similar tool and carefully pry insert from bore. 3.
After removal of inserts, thoroughly clean area around -UN-13NOV97 valve seat bore and inspect for damage or cracks. Replace cylinder head as necessary. RG7813 -UN-10NOV97 RG7763 CD,CTM125,030 -19-01DEC97 05 14