TM 9-2320-272-24-4
5-10. PISTON AND CONNECTING ROD MAINTENANCE (Contd)
1.
Place cylinder block (1) in vertical position and remove all carbon from upper inside wall of each
cylinder liner. Use ridge reamer as necessary.
NOTE
All six connecting rod and bearing caps are removed the same way.
Steps 2 through 5 are for one connecting rod and bearing cap only.
2.
Rotate crankshaft (3) until connecting rod bearing caps (5) are above edge of cylinder block flange (2).
3.
Loosen two screws (6) on connecting rod bearing cap (5) 3/8 in. (9.5 mm) and tap with soft-faced
hammer to free connecting rod bearing cap (5) from connecting rod (7).
NOTE
l Tag and mark bearing cap for installation.
l Do not mix bearing caps.
4.
Remove two screws (6), bearing cap (5), and lower half bearing shell (4) from connecting rod (7).
Discard lower half bearing shell (4).
CAUTION
Use a tape-protected tool to push piston from block. Failure to do
this may result in damage to cylinder liners.
NOTE
l Assistant will help with steps 5 and 6.
l Mark location and position of all pistons before removal from
block. Discard upper half bearing shells.
5.
Push connecting rods (7), pistons (8), and upper bearing shells (9) out of cylinder block (1) with tape-
protected tool. Begin at crankshaft (3) side.
CAUTION
Bearing caps and connecting rods are stamped with same number
as the cylinder. Mixing piston assemblies may cause equipment
damage.
6.
After each piston (8) and connecting rod (7) is removed, assemble connecting rod bearing cap (5) to
connecting rod (7) with two screws (6).
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