420. Carrier Engine Rocker Arm and Push Rods
a. Reassembly. Reassemble the carrier engine
Assembly Cleaning, Inspection, and Repair
rocker arm and push rods assembly in the reverse of the
numerical sequence as illustrated on figure 217.
a. Cleaning. Clean all parts with an approved
cleaning solvent and dry thoroughly.
b. Installation.
b. Inspection and Repair. Inspect all parts for
(1) Install the carrier engine rocker arm and
excessive wear, defects, and damage. Replace or repair
push rods assembly as illustrated on figure
all damaged or defective parts. Inspect the rocker arm-
to-shaft clearance. The clearance should measure from
(2) Install the rocker arm covers (para. 170).
0.0005 to 0.0015 inch.
(3) Install the spark plug (para. 100).
421. Carrier Engine Rocker Arm and Push Rods
(4) Install the water manifold (para. 151).
Assembly Reassembly and Installation
Section XXXIV. CARRIER ENGINE CYLINDER HEAD AND VALVES
425. Carrier Engine Cylinder Head and Valves
422. General
The carrier engine cylinder head consists of two
Reassembly and Installation
sections, front and rear. The cylinder head houses the
a. Reassembly. Reassemble the cylinder head
exhaust and intake valves. The exhaust valves are
and valves in the reverse of the numerical sequence as
made of heat resistant steel.
illustrated on figure 219.
423. Carrier Engine Cylinder Head and Valves
Removal and Disassembly
a. Removal.
(1) Remove the carrier engine rocker arm
and push rods assembly (para. 419).
(2) Remove the carrier engine cylinder head
and valves as instructed on figure 218.
b. Disassembly. Disassemble the cylinder head
and valves in numerical sequence as illustrated on
424. Carrier Engine Cylinder Head and Valves
Cleaning, Inspection, and Repair
a. Cleaning.
Clean all parts in an approved
cleaning solvent and dry thoroughly.
b. Inspection and Repair. Inspect all parts for
excessive wear or damage. Inspect the valve springs
for a minimum spring length of 2 3/4 inches at 85 to 95
pounds, and 2 19/32 inches at 41 to 49 pounds for the
Figure 218. Carrier engine cylinder head and
outer and inner springs respectively. Replace or repair
valves, removal and installation
all damaged or defective parts.
The valve head
diameter should be between 2.245 and 2.256 inches.
AGO 6819A
240
