Figure 4-27. Removing Cylinder Top Ridge With a Ridge Reamer

TM 10-3930-623-34

Figure 4-27. Removing Cylinder Top Ridge With a Ridge Reamer

3. Remove cap screws (49 and 50, figure 4-22)

4-99. CAMSHAFT REMOVAL.

and lock washers (51) that secure flywheel housing (47)

to engine block (62).

NOTE

Before removing camshaft, check

camshaft

bearing

NOTE

clearance. Use 1/4 inch wide strips

Unless suitable rebuild stand is used,

of feeler gauge stock. Hone feeler

do not remove flywheel housing

stock edges to remove burrs which

unless

the

block

properly

would give a false reading.

See

supported.

Section VII for wear limits.

4-102. DISASSEMBLY.

1. Remove nut (10, figure 4-23) and governor race.

Remove gear (9) with a gear puller; then remove key

NOTE

(11).

Do not remove flywheel ring gear (11,

2. Remove two screws (13), washers (14), and

figure 4-28) unless teeth are badly

thrust plate (12); then withdraw camshaft (19) from

chipped or missing.

block.

3. If chamshaft bearings (15, 16, 17 and 18) are to

1. Remove flywheel ring gear (11) by drilling

be replaced, drive them out of bores in the block with a

through ring only and chisel only as necessary to crack

suitable driver.

gear.

4-100. FLYWHEEL RING GEAR AND FLYWHEEL

4-103. CRANKSHAFT REMOVAL.

HOUSING.

1. Remove retaining ring (3, figure 4-28) retaining

hydraulic pump drive coupling gear (1). Pull gear from

4-101. REMOVAL

drive sleeve.

1. Remove nuts (9, figure 4-28) and lock washers

2. Remove screw (2) retaining crankshaft drive

(10) that secure flywheel (7) to engine crankshaft (37).

coupling gear (1) and drive sleeve. Remove gear and oil

2. Mark flywheel (7) to crankshaft (37) relationship

slinger (4).

for reinstallation, and remove flywheel from crankshaft

3. With gear puller, remove gear (5) and key (6).

by use of jackscrews.

4-31