TM 5-3810-295-34
c. Remove screw/washers (2) and bracket (3).
4-35. Reassembly and Installation
Lower oil pan (4) from the engine. Be careful to avoid
a. Refer to figure 4-16. Install a new gasket (15) on
damaging the oil inlet screen and pipe.
screen assembly (14) and install the assembly on pipe
d. Remove gasket (5).
(16). Secure with nuts (13).
e. Remove screw (6), lock washer (7) and flat
b. Install flange (11) and seal ring (12) on the pipe
washer (8). Remove screws (9) and washers (10) and
assembly. Install the pipe and screen assembly in the
withdraw the oil screen and pipe assembly from the
crankcase and secure with screws (9) and (6), lock
engine.
washers (10) and (7), and flat washers (8).
f. Remove flange (11) and seal ring (12).
c. Install a new gasket (5) and position oil pan (4)
g. Remove nuts (13) and separate screen
on the crankcase. Secure with screws (2) and install
assembly (14) from pipe (16). Remove gasket (15).
bracket (3). Tighten the screws uniformly to prevent
damaging the gasket or springing the pan. Install plug
(1).
4-34. Cleaning, Inspection and Repair
d. Replenish the lubricating oil supply per LO 5-
a. Clean all metal parts with cleaning solvent,
3810-295-12-1, -2 & -3.
Federal Specification P-D-680, or equivalent before in-
e. Refer to chapter 2 and install the engine in the
spection.
crane.
b. Replace all gaskets and seals.
c. Inspect the pan for porosity and cracks. Check
for misaligned flanges and raised surfaces surrounding
the bolt holes.
Section VIII. REPAIR OF CRANKSHAFT, PISTONS AND RODS
d. Refer to figure 4-16A. Remove nuts (1), rod
4-36. Description
bolts (2), rod caps (3) and bearings (4).
The crankshaft supports the connecting rod and pistons
e. Remove carbon from the upper inner surface of
along its length. At the rear end is the crankshaft gear
the cylinder liner and lift connecting rod and piston as-
which drives the camshaft and associated accessories.
semblies from the top of the block.
The connecting rods serve as the links between the
f. Remove bearing cap bolts (5). Lift off bearing
crankshaft and the pistons.
caps (6) and (7), and bearings (8). Remove thrust
washer pin (9) and thrust washers (10) from each side of
4-37. Removal and Disassembly
the rear main bearing.
a Refer to chapter 2 and remove engine from the
g. Using a suitable lifting device, remove crankshaft
crane.
(14) from the crankcase.
b. Drain cooling system and drain engine
h. Use a suitable puller and remove crankshaft tim-
crankcase.
ing gear (11) from the crankshaft. Remove Woodruff key
c. Refer to chapter 4 and remove oil pan, oil inlet
(12) from the shaft.
pipe and screen, flywheel and flywheel housing, lower
front cover, and cylinder head.
4-19
