TM 5-2420-230-24-2
Section V - Engine Component Specifications - Group 18
Component Specifications and Torque Values
B Series
Page V-23
Component or Assembly (Procedure)
Ref.No./Steps
Metric
U.S.
Connecting Rod Capscrews
1
35 Nm
26 ft-lb
2
70 Nm
52 ft-lb
3
100 Nm
74 ft-lb
Cylinder Block Pipe Plugs
Refer to ``Pipe Plug Torque Value Table'' at the rear of this section for torque value of various plug
sizes.
Cylinder Head - Rebuild Specifications
Cylinder Head Flatness
End-to-End
4 Cylinder
0.203 mm
MAX
0.008 in
6 Cylinder
0.305 mm
MAX
0.012 in
Side-to-Side
0.076 mm
MAX
0.003 in
Valve Spring Free Height:
1991
55.63 mm
Nominal
2.190
in
Exhaust Brake
70.64 mm
Nominal
2.781
in
Marine/Rotator
56.00 mm
Nominal
2.208
in
1994
60.00 mm
Nominal
2.362
in
Valve Spring Working Height and Load
Working
Load For Working Height (C)
Height (B)
HD Exhaust Brake
48.97 mm
643.2 N
MIN
144.6 lbf
1.927 in
691.2 N
MAX
155.4 lbf
63.5 lbf
MIN
282.7 N
Marine With Rotator
47.24 mm
72.6 lbf
MAX
323.1 N
1.859 in
1994
49.25 mm
359 N
MIN
80.7 lbf
1.94 in
397 N
MAX
89.2 lbf
64.0 lbf
MIN
All Others
49.25 mm
285 N
72.1 lbf
MAX
321 N
1.94 in
Valve Stem O.D.
7.98 mm
MAX
0.3142 in
Valve Head Thickness at O.D.
T
0.79 mm
MIN
0.031 in
L-497