Cylinder Block, Liners, Pistons, and Rods
02
030
33
RG,RG34710,122 –19–02AUG99–3/4
RG1549 –UN–20NOV97
Measuring Assembled Rod Bore
7. Using an inside micrometer, measure rod bore at
center of bore and record measurements as follows:
• (A) At right angle to rod/cap joint.
• (B) At 45 degrees left of measurement (A).
• (C) At 45 degrees right of measurement (A).
8. Compare the measurements.
Specification
Connecting Rod Bore (For
Crankshaft Journal Bearing)—ID 93.76—93.79 mm
(3.6915—3.6925 in.)
..................................
If difference between the greatest and least measurement
is more than 0.038 mm (0.0015 in.), the rod and cap are
out of round. Replace both connecting rod and cap.
RG,RG34710,122 –19–02AUG99–4/4
RG8420 –UN–09DEC97
Measuring Rod Center-to-Center Bores
A—Rod’s Piston Pin Bore-to-Crankshaft Bore
Center-to-Center Dimension
9. Measure rod’s piston pin bore-to-crankshaft bore
center-to-center dimension (A) and compare with
specification given. If measurement is not within
specification, replace rod.
Specification
Connecting Rod Centerline of
Piston Pin Bore-to-Crankshaft
Bore (New Part)—Dimension 263.95—264.05 mm
(10.392—10.396 in.)
....................................
CTM100 (06APR04)
02-030-33
P
OWER
T
ECH
10.5 L & 12.5 L Diesel Engines
040604
PN=173
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