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 TM 55-1905-223-24-5
NOTE
To prevent increased wear, the piston and connecting rod assemblies must
be installed in the same cylinder from which they were removed.
The pistons must have the cylinder numbers stamped on the piston top
toward the camshaft side of the engine.
j. If the piston is not previously marked, mark the cylinder number on the top of each piston on the
camshaft side as the assembly is removed.
k. Place the rod and piston assemblies in a container of clean lubricating oil to protect them from
damage.
NOTE
The cylinder number is stamped on the rod and the cap. When the rods and the
caps are installed in the engine, the numbers on the rods and the caps must
match and be installed on the same side of the engine.
l. Remove the upper rod bearing (2).
m. Mark the cylinder number and the letter "U" in the flat surface of the bearing tang.
REPLACEMENT
a. Install the upper bearing shell (2) in the connecting rod (7). If used bearing shells are to be installed,
each bearing shell must be installed in its original location.
NOTE
The tang of the bearing shell must be in the slot of the rod,
b. Use clean Lubriplate 105 or its equivalent to lubricate the bearing shell (2).
c. Apply a heavy film of clean engine oil to the cylinder liner.
NOTE
The ring gap of each ring must not be aligned with the piston pin or with any other ring.
3-115
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