Quantcast Repair - TM-9-2815-247-34_500

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TM 9--2815--247--34 0072 00--4 VALVES AND ASSOCIATED PARTS REPAIR -- CONTINUED 0072 00 Repair 1.   Discard valves (1 and 2) which do not conform to the limits specified under inspection, or whose faces are badly warped, cracked, pitted, or burned. 2.   Discard valves (1 and 2) having badly pitted, scored, or scratched stems or locking grooves. 3.   Reface slightly pitted or burned valves (1 and 2) that do not have 360° of contact revealed at inspection. Reface to the specifications shown on illustration. 4.   Recheck valves (1 and 2) for 360° contact. Repeat inspection steps a.4 and 5. 5.   Check valve length (13 and 14) from seat contact to tip of stem. Discard valve if length is not within limits speci- fied on illustration. Figure 9 SEE NOTE 1 INTAKE VALVE SEE NOTE 1 EXHAUST VALVE NOTE: ALL DIMENSIONS SHOWN ARE IN INCHES. 45 DEG+15 --00 45 DEG+15 --00 MIN SEAT ANGLE 30 MIN SEAT ANGLE INSERT SEAT WIDTH (NEW) 2 1 13 14 NOTE 1 NEW REPAIR SEAT WIDTH (MAX) 0.1200 (3.048) 0.0600 MIN (1.524) 0.0700 MAX (1.778) REGRIND ON THIS LINE WHEN WIDTH OF VALVE INSERT EXCEEDS 0.1200 (3.048) REGRIND ON THIS LINE WHEN WIDTH OF VALVE INSERT EXCEEDS 0.1200 (3.048) 0.0890 MIN (2.260) 0.0990 MAX (2.514) SEAT WIDTH (MAX) 0.1200 (3.048) INTAKE VALVE 6.355 TO 6.369 (161.417 -- 161.7726) 6.3740 (161.8996) EXHAUST VALVE 7.010 TO 7.024 (178.054--178.4096)  7.0340 (178.6636) 15 DEG 15° 15 DEG 15° 30+ NOTE FOLLOW--ON MAINTENANCE: Install valves (WP 0061 00) Install cylinder head assembly (WP 0059 00) END OF TASK


 


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