PowerTech 6105HF - Inspect and Measure Connecting Rod Bearings

Cylinder Block, Liners, Pistons, and Rods
02
030
29
RG,RG34710,121 –19–13AUG99–1/3
Inspect and Measure Connecting Rod
Bearings
RG10246 –UN–30JUL99
Assembled Rod with Bearing
A—Rod Cap
B—Rod
C—Bearings
Inspect rod bearings for damage of wear.
IMPORTANT: Never use new connecting rod cap
screws when checking rod bearing ID.
Use new cap screws only for final
assembly of connecting rods.
Rod bearing-to-journal oil clearance can be checked with
PLASTIGAGE

, if rod is connected to crankshaft. If rod is
out of engine, measure ID of connecting rod bearings and
compare with OD of crankshaft journal.
NOTE: Use PLASTIGAGE

as directed by the
manufacturer. The use of PLASTIGAGE

will
determine bearing journal clearance, but will not
indicate the condition of either surface.
1. With crankshaft removed, measure connecting rod
journal OD at several points.
2. Install connecting rod cap (A) on rod (B) with bearings
(C) in correct position.
3. On tongue-and-groove connecting rods: Initially
tighten blind-hole cap screw, then, tighten open-hole
cap screw to the following specifications.
Specification
Tongue-and-Groove Connecting
Rod Cap Screw—Initial Torque 27 N•m (20 lb-ft).......................................
Next, tighten rod cap screws to the following
specifications.
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, later in this group.)
PLASTIGAGE is a registered trademark of DANA Corp.
CTM100 (06APR04) 02-030-29 P OWER T ECH 10.5 L & 12.5 L Diesel Engines
040604
PN=169
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