TM 5-6115-584-34
NAVFAC P-8-622-34
TO-35C2-3-456-2
TM-0568C-34
Table 1-2. Repair and Replacement Standards (Cont)
Manufacturer Dimensions
and Tolerances
Maximum Allowable
Component
Minimum
Maximum
Wear Limit
PISTON RING (Cont):
Clearance in groove - oil control
0.0020
0.0030
0.0050
Gap
0.0100
0.0200
0.0400
VALVE, INTAKE:
Head diameter
1.307
1.317
N/A
Stem diameter - tapered
0.3391/0.3381
0.3420/0.3410
0.002
Stem to guide clearance
0.0030/0.0050
0.0012/0.0032
0.0100
Stem to rocker arm clearance
Cold 0.010
0.010 adjustable
Seat diameter in head
1.361
1.362
N/A
Seat width in heed
1/16
3/32
1/8
Top of valve recessed below
0.433
0.439
0.500
cylinder head deck
Valve seat angle
45°
N/A
45°
Valve Face Angle
44°
N/A
44°
VALVE, EXHAUST:
Head diameter
1.307
1.317
N/A
Stem diameter
0.3405
0.3415
0.002
Stem to guide clearance
0.0030
0.0050
0.0100
Stem to rocker arm clearance
Cold 0.007
0.007 adjustable
Seat diameter In head
1.361
1.362
N/A
Seat width in head
3/64
1/16
1/8
Top of valve recessed below
0.433
0.439
0.500
cylinder head deck
Valve seat angle
45°
N/A
45°
Valve Face Angle
45°
N/A
45°
VALVE GUIDE:
Length
Exhaust
2
Intake
1-25/32
Outside dtameter
0.4690
0.4695
0.4695
Bore diameter - intake - ream
0.3425
0.3435
0.003
Bore diameter - exhaust - ream
0.3445
0.3455
0.003
Height above cylinder head deck
Intake
11/32
N/A
Exhaust
5/8
N/A
1-6
