TM 5-6115-465-34
TO 35C2-3-446-2
NAVFAC P-8-625-34
TM06858B/06859D-34
Timing Gear Relationships
Figure 3-43.
b. Disassembly.
3-53. CYLINDER HEAD AND ROCKER ARM
ASSEMBLY.
(1) Remove retaining rings (12) to remove
mounting blocks (13, 13A, and 13 B), spacers (14),
a.
Removal.
rocker arm (15) and springs (16) from shaft (18).
(1) Refer to the Operator and Organizational
NOTE
Maintenance Manual and remove the air cleaner as-
sembly, muffler and exhaust pipe assembly, intake
Record position and quantity of spacers
manifold, exhaust manifold, coolant control thermo-
(14) to facilitate assembly.
stat, and injector nozzle holder assemblies.
(2) Remove adjustment screws (17).
(2) Remove nuts (1, figure 3-44) and lock-
washers (2) to remove lifting eyes (3).
(3) Separate Shafts (18) and bushings (19)
from center mounting block (20).
(3) Remove nuts (4) and washers (5) to remove
(4) Do not remove plugs (21).
rocker arm assembly (6) and push rods (7).
(5) Using a valve spring depressor, depress
(4) Remove nuts (8) and washers (9).
valve springs and remove locks (22 and 23).
(6) Release valve springs and remove spring
seats (24 and 25), valve springs (26 and 27), exhaust
CAUTION
valves (28) and intake valves (29).
Tap cylinder head lightly with a soft
(7) Remove and discard bonnets (30).
hammer to loosen it. Do not pry on
contact surfaces.
(8) Do not remove valve guides (31 and 32),
plugs (33), studs (34), fuel injector sleeves (36) and
(5) Lift cylinder head (10) from engine.
seal (35) unless inspection reveals damage.
(9) Remove side plates (19, figure 3-51) from
`6) Remove and discard gasket (11).
cylinder block (22).
3-67
