TM 5-3825-213-35
1
Screw, cap, 1/4-20 x 1/2 in. (8 rqr)
13
Elbow
2
Washer, lock, 1/4 in. (8 rqr)
14
Gasket
3
Cover
15
Screw, cap, 3/8-16 x 1 3/4 in. (4 rqr)
4
Nut, 9/16-18, special
16
Washer, lock, 3/8 in. (4 rqr)
5
Impeller
17
Screw, cap, 3/8-16 x 2 5/8 in. (3 rqr)
6
Key
18
Washer, lock, 3/8 in. (3 rqr)
7
Seal
19
Plug, pipe, 1 in.
8
Seal seat
20
Plug, pipe, 3/8 in.
9
Gasket
21
Screw, adjusting, special
10
Screw, cap, 3/8-16 x 1 in. (3 rqr)
22
Pump body
11
Washer, lock, 3/8 in. (3 rqr)
23
Gasket (2 rqr)
12
Water pump elbow
Figure 60 - Continued.
(2)
Install the plow and carrier fan and drive
(4)
Install the plow engine radiator (TM 5-3825-
pulley (TM 5-3825-213-20).
213-20), and carrier engine radiator (par.
(3)
Install the generator and bracket (TM 5-
3825-213-20).
Section X. PLOW AND CARRIER ENGINE CYLINDER HEAD VALVES,
ROCKER ARM ASSEMBLY, PUSH RODS, AND LIFTERS
217. General
219. Plow and Carrier Engine Cylinder Head, Valves,
The valves and rocker arm assemblies are mounted
Rocker Arm Assembly, Valve Lifters, and Push
in the cylinder heads. The rocker arm assemblies reverse
Rods Cleaning, Inspection, and Repair
the direction of thrust of the push rods to actuate the
a. Cleaning. Clean all parts with an approved
valves at the proper time in relation to the engine cycle.
cleaning solvent and dry thoroughly.
The cylinder head contains valve guides and valve seat
b. Inspection and Repair.
inserts for inexpensive replacement in the event of
(1) Inspect valve guides for excessive wear. If
damage and excessive wear.
valve guides are to be replaced, this should
be done before any work is done on valve
218. Plow and Carrier Engine Cylinder Head, Valves,
seat inserts. This will insure that inserts will
Rocker Arm Assembly, Push Rods, and Lifters
finish square with new guides. Clearance
between valve guides and stems on intake
Removal and Disassembly
valve should be between 0.002 and 0.004
a. Removal.
inch and exhaust valve should be between
(1) Remove the rocker arm covers (TM 5-
0.003 and 0.005 inch.
3825-213-20).
(2) Measure valve stem diameter. The valve
(2) Remove the plow and carrier engine
stem should be 0.434 to 0.435 inch in
cylinder head, rocker assembly, push rods,
diameter. If stems are less than 0.432 inch
and lifters as instructed on figure 61.
replace valve. Valves that are only slightly
b. Disassembly. Disassemble the plow and carrier
pitted can be refaced. The valve seat
engine cylinder head, valves, and rocker arm assembly in
angle should be 45.
numerical sequence as illustrated on figure 62.
152
