TM 10-4320-318-146-6. MAINTENANCE OF CYLINDER HEAD - (Cont)Figure 6-10. Valve Guide Removal(4) Install valve (43) into cylinder head.CAUTIONValve recession must not be less than 0.018 inch (0.45 mm) or valve head maytouch piston and be damaged.(5) Measure valve recession in cylinder head. Correct measurement is 0.0177 inch (0.45 mm) minimum and0.035 inch (0.90 mm) maximum.e.ASSEMBLE.(1) Assemble valves (43) in cylinder head (15) as follows:(a) Install valves (43) into cylinder head (15).(b) Install seal (42), washer (41), cap (40), valve spring (37), and cup (39).(c) Compress valve springs (37) and install collets (38).(2) Assemble oil priming device (35) as follows:(a) Install O-rings (34) onto cap (33).(b) Install cap (33) onto oil priming device (35).6-15
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