TM 5-3805-258-24-2ENGINECYLINDER HEADDISASSEMBLY AND ASSEMBLY8.9.10.Use tooling (D) to remove the valve guidesfrom the cylinder head.Use tooling (E) to remove the valve seat insertsfrom the cylinder head.Clean and remove any rough places (burrs)from the valve seat bores.NOTE: For reconditioning information of the cylin-der head see SERVICE TRAINING MEETINGGUIDE Form JEG02327.ASSEMBLE CYLINDER HEAD1100-16Tools Needed A B C D E9S3080 Valve SeatInsert Group17S8859 Guide Driver17S8858Bushing15S1330 Valve SpringCompressor15S1322 Lock Inserter18S2252 Carbon Seal Tool*1*The 8S2252 Carbon Seal Tool must have a modifi-cation made to it before it can be used with the8N7002 Fuel Injection Nozzle. Special InstructionForm No. SEHS7292 has the information needed tomake the modification to the tool.1.2.3.Lower the temperature of (freeze) the newvalve seat inserts, Use tooling (A) to install thenew valve seat inserts. Do not increase the dia-meter of the extractor in the valve seat insertwhen the insert is installed in the cylinder head.Put clean oil on the outside diameter of thevalve guides. Use tooling (B) to install valveguides (1) in the cylinder head. Tooling (B) willinstall the valve guides so dimension “X” willbe correct. Dimension “X” must be 22.23 ±0.25 mm (.875 ± .010 in.). The minimum in-side diameter of the valve guides after installa-tion must be 9.456 mm (.3723 in.). Clean thevalve guides after installation.Grind the valve seat inserts according to speci-fications given in SPECIFICATIONS section.5-128
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