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 TM 9-2815-220-24
TORQUE LIMIT TABLES
0174 00
TABLE 1: SPECIAL TORQUE LIMITS (Continued)
DESCRIPTION
Torque: inch-pounds
Compression sleeve fitting tube nuts: (Lubrication Note number 4 applies)
Tube o.d.
Material
75-110
1/8
Plastic w/support
(2 F.F.F.T.)
135-150
1/4
Plastic w/support
(2 F.F.F.T.)
215-280
3/8
Steel
(1-1/4 F.F.F.T.)
470-550
1/2
Steel
(1 F.F.F.T.)
Connecting rod bolt nuts: alternately tighten 100-150, then 600-650
and then the listed torque
1250-1300
Constant torque clamps
Tighten until spring bottoms, then back-off 1 to 1-1/2 turns
Crankcase through-bolts
640
Crankcase-main bearing stud nuts:
1. First tighten all nuts to 500 inch-pounds
700-825
2. Then tighten all nuts to listed torque
3. Check stud stretch: Optimal: .019 - .022 inch
4. Tighten nuts as applicable to obtain proper stretch.
5. Do not exceed .024-inch stretch when aligning wire holes.
NOTE
Studs which exceed the stretch limits at less than 700 inch-pounds must
be replaced.
Studs which exceed the stretch limits above 700 inch-pounds must be
loosened and re-subjected to steps 1-5.
Re-torquing any singular stud nut is not allowable. The adjacent stud
nut must also be loosened and re-torqued in sequence.
Cylinder deck studs (1/2-inch), Installation of
450-1000
Cylinder flange base nuts, Installation of
840-860
Cylinder head oil drain tube to cylinder head (1/2-20 bolts)
275-300
Damper housing oil drain valve
135-150
Damper housing to crankcase (3/8-24 nuts)
225-250
Damper to crankshaft
975-1025
Exhaust manifold support bracket bolt/nut
400-425
Fan adapter to fan cap screws
150-175
Fan adapter to fan drive shaft unit
600-625
Fan clutch slip torque
300-350
WP 0174 00-3
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