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 TM 9-2815-226-34-1
Table 3-2. VALVE SEAT INSERTS
VALVE SEAT
OVERSIZE
OVERSIZE
INSERT
CYLINDER HEAD
INSERT
INSERT
DIAMETER
DEPTH
OD
ID
THICKNESS
PART NO.
in.
in.
in.
in.
in.
(mm)
(mm)
(mm)
(mm)
(mm)
127935
0.005 in.
STD
2.0075/2.0085
2.0045/2.0055
0.278/0.282
(0.127 mm)
(50.9905/51.0159)
(50.9143/50.9397)
(7.061/7.163)
127931
0.010 in.
STD
2.0125/2.0135
2.0095/2.0105
0.278/0.282
(0.254 mm)
(51.1175/51.1429)
(51.0413/51.0667)
(7.061/7.163)
127932
0.020 in.
0.005 in.
2.0225/2.0235
2.0195/2.0205
0.283/0.287
(0.501 mm)
(0.127 mm)
(51.3715/51.3969)
(51.2953/51.3207)
(7.188/7.290)
127933
0.030 in.
0.010 in.
2.0325/2.0335
2.0295/2.0305
0.288/0.292
(0.762 mm)
(0.254 mm)
(51.6255/51.6509)
(51.5493/51.5747)
(7.320/7.420)
127934
0.040 in.
0.015 in.
2.0425/2.0435
2.0395/2.0405
0.293/0.297
(1.016 mm)
(0.381 mm)
(51.8795/51.9049)
(51.8033/51.8287)
(7.442/7.544)
NOTE
Be sure to measure insert before matching or installing insert in head.
d. Studs. Inspect all studs for stripped or damaged threads, bent or loose condition, and evidence of stretching.
e. Gears.
(1) Inspect all gears for cracks, using a magnifying glass and a strong light.
(2) Inspect all gear teeth for wear, sharp fins, burrs, and galled or pitted surfaces.
(3) Check all gears for conformance to applicable repair standards (Table 3-1).
3-16
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