TM5-6115-593-34
NAVFAC P-8-631-34
TO-35C2-3-463-2
Table 1-2. Repair and Replacement Standards - Continued
NEW MINIMUM
NEW MAXIMUM
PART OR LOCATION
WORN LIMIT
INCH (mm)
INCH (mm)
Valve Crossheads (Cont.)
Crosshead to spring
0.025
retainer clearance
(0.64)
Valves, Guides and Springs
Valve stem outside
0.449
0.450
0.451
diameter
11.40)
(11.43)
(11.46)
Valve guide inside
0.4545
0.4525
0.4532
diameter
11.544)
(11.494)
(11.511)
Valve guide height
1.315
1.325
(33.40)
(33.65)
Head height
5.460
5.490
5.510
(138.68)
(139.45)
(139.95)
Runout
0.002
(0.05)
Gear Cover
Fuel pump drive bushing
1.5705
1.565
1.569
(39.891)
(39.75)
(39.85)
Generator drive bushing
1.3205
1.316
1.319
(33.541)
(33.43)
(33.50)
Camshaft support
1.757
1.751
1.754
(44.63)
(44.48)
(44.55)
Rear Cover
Piston ring type
8.504
8.500
8.502
(216.00)
(215.90)
(215.95)
VALVE SEAT INSERT SPECIFICATION - INCH (mm)
INSERT
OVERSIZE
INSERT
CYLINDER HEAD
INSERT
PART NO.
CUTTER
DIAMETER
DEPTH
OD
ID
THICKNESS
127930
ST-662
Std.
2.0025/2.0035
1.9995/2.005
0.278/0.282
Std.
(50.864/50.889)
(50.787/50.813)
(7.06/7.16)
127935
ST-662
0.005
2.0075/2.0085
2.0045/2.0055
0.278/0.282
(0.13)
Std.
(50.991/51.016)
(50.914/50.940)
(7.06/7.16)
127931
ST-662-1
0.010
2.0125/2.0135
2.0095/2.0105
0.278/0.282
(0.25)
Std.
(51.118/51.143)
(51.041/51.067)
(7.06/7.16)
127932
ST-662-2
0.020
0.005
2.0225/2.0235
2.0195/2.0205
0.283/0.287
(0.51)
(0.1270)
(51.372/51.397)
(51.295/51.321)
(7.06/7.29)
127933
ST-662-3
0.030
0.010
2.0325/2.0335
2.0295/2.0305
0.288/0.292
(0.76)
(0.2540)
(51.626/51.651)
(51.549/51.575)
(7.32/7.42)
127934
ST-662-4
0.040
0.015
2.0425/2.0435
2.0395/2.0405
0.293/0.297
(1.02)
(0.3810)
(51.880/51.905)
(51.803/51.829)
(7.44/7.54)
CAUTION
Be sure to measure insert before machining head or installing insert in head.
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