f. Check all parts against tolerances shown in
ring (28) onto rocker arm shafts. Install oil trough (27).
g. Install sleeve bearings (7) into head and set rocker
g. Replace valve guides if they are out of round or
arm in place. Loosely install bolts (5) and washers (6).
damaged. Replace cracked or worn rocker-arm shafts.
h. Tighten head bolts alternately and evenly in
Replace weak, broken or distorted valve springs.
sequence as shown in figure 13-2 to a torque of 85 foot-
pounds. Tighten rocker arm mounting bolts to torques of 85
13-10. Reassembly and Installation
Refer to figure 13-1 and reassemble and install valves,
i. Install gaskets (4, fig. 13-1), covers (3) and secure
head, and rocker arms as follows.
with capscrews (1) and washers (2).
a. Install exhaust tube (39) and valve guides (2and
26). Install valve seats (22 and 25).
b. Coat valves (21 and 24) with oil and install valves
in same seat to which they were checked Assemble valve
rotors (19), oil seals (20), inner springs (18) , outer
springs (17), and spring retainer,(16)Compress valve
springs and install locks (15)
c. Install tappets (14) in block.
d. In placing new head gaskets on each bank over
the aligning dowel sleeves, be sure all bolt holes in the
gaskets are in line with the holes in the block Lift cylinder
head (12) in place.
e. Loosely install head bolts (9 and 10), and
washers (11) and insert Pushrod (8) in place.
f. Install plugs (38) on rocker arm shaft (37. Install
Figure 13-2. Carrier engine head bolt
sleeve bearing (34) in rocker arm bracket(33) and bearing
(32) in rocker arm (31) Reassemble bracket (36), bearing
(35), rocker arm bracket (33), rocker arm (31) onto rocker
arm shafts. Install spring (30) washer (29), retaining
Section III. REPAIR OF GEAR COVER
The gear cover encloses the three gears in the