TM-9-2815-210-34-2-2 LDS-465-1/LDS-465-2 Multifuel Engine Maintenance Manual Part 2
Page 253 of 968
TM 9-2815-210-34-2-2 FRAME 22 1. 2. 3. Put each NOTE Two sizes of intake valve seat inserts (1) are, used in these cylinder heads (2). Standard size intake valve seat inserts go in standard size intake valve seat counter- bores (3). For 0.0100-inch oversize intake valve seat counterbores, use 0.0100-inch inserts. intake valve seat insert (1) in oversize intake valve seat dry ice for four hours so it will shrink. NOTE Intake valve seat insert (1) must be put in intake valve seat counterbore (3) right after it is taken out of dry ice. If intake valve seat insert is left out of ice too long, it will get bigger and will not fit. Using soft-faced hammer and valve seat replacing tool, put intake valve seat insert (1) into its intake valve seat counterbore (3) with beveled edge facing out. Tag new intake valve seat inserts for lapping by machine shop. NOTE If no exhaust valve seat inserts (4) were taken out, do step 3. Send cylinder head (2) to machine shop along with intake valves that seat against new intake valve seat inserts (1). Tell machine shop to lap new intake valve seats to valves that seat against them. GO TO FRAME 23 4-234