Cylinder Block, Liners, Pistons, and Rods
02
030
51
RG,RG34710,133 –19–26AUG02–6/6
RG4375 –UN–05DEC97
Tightening Rod Cap Screws
A—Blind-Hole Cap Screw
9. Dip new cap screws and washers in clean engine oil.
Make sure tops of cap screws have oil on them also.
IMPORTANT: DO NOT use pneumatic wrenches to
install connecting rod cap screws.
Doing so may damage threads. Use
speed-handle wrench instead.
10. On tongue-and-groove connecting rods: Initially,
tighten blind-hole cap screw (A) to specifications.
Next, tighten the other cap screw. Feel rod-to-cap
joint to check for proper alignment.
Specification
Tongue-and-Groove Connecting
Rod Cap Screw—Initial Torque 27 N•m (20 lb-ft).......................................
Second, tighten all cap screws to the following
specifications, then torque-turn all cap screws 90—100°.
Specification
Tongue-and-Groove Connecting
Rod Cap Screw—Final Torque 75 N•m (55 lb-ft) plus 90—100°
turn clockwise
...............
(See TORQUE-TURN CONNECTING ROD CAP
SCREWS, next in this group.)
11. On PRECISION JOINT connecting rods: Initially,
tighten cap screw closest to piston end to
specifications. Next, tighten the other cap screw. Feel
rod-to-cap joint to check for proper alignment.
Specification
PRECISION JOINT Connecting
Rod Cap Screw—Torque 140 N•m (103 lb-ft) plus 90—100°
turn clockwise
....................
(See TORQUE-TURN CONNECTING ROD CAP
SCREWS, next in this group.)
PRECISION JOINT is a trademark of Deere & Company
CTM100 (06APR04)
02-030-51
P
OWER
T
ECH
10.5 L & 12.5 L Diesel Engines
040604
PN=191
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