TM 5-3655-210-12
1.
Oil filter assembly
13.
Carburetor choke lever
24.
Cap screw
2.
Oil filter inlet hose
14.
Hose clamp
25.
Lock washer
3.
Choke control lead
15.
Hose
26.
Machine bolt
4.
Nut
16.
Oil filler and gage
27.
Machine bolt
5.
Automatic choke control
17.
Oil filler body
28.
Lock washer
6.
Machine screw
18.
Oil filler nipple
29.
Breather plug
7.
Exhaust pipe, nipple
19.
Street tee fitting
30.
Air cleaner mounting bracket
8.
Machine screw
20.
Plug (timing)
31.
Oil filter mounting bracket
9.
Choke control lever
21.
Timing gear cover
32.
Machine bolt
10.
Choke control rod
22.
IET lock washer
33.
Oil filter outlet hose
12.
Hose clamp screw
23.
Nut
34.
Hose nut
Figure 4-34 - Continued.
b. Cleaning, Inspection and Repair.
(4) Remove the cotter pin (10) (serial nos.
L1475-T through L-1478-T) securing the choke rod (11)
(1)
Clean all parts with a cleaning solvent.
to the carburetor choke, lever (13), and slide the rod
(2)
Blow dry with compressed air; make
from the choke lever.
sure the passages are clean.
(5) Remove the two nuts (2, fig. 4-32), lock
(3)
Inspect the fuel pump cover and body
washers (3) and washers (4) securing the intake
for chips, cracks, or other defects. Inspect the threads
manifold and carburetor (16) to the block (26) and
for damage. Inspect the fuel line for breaks, thread
remove the intake manifold and carburetor assembly,
damage, or other defects.
and manifold gasket.
(4)
Replace all damaged parts. Install a
new gasket.
NOTE
c. Reassembly and Installation.
These nuts also retain the exhaust
(1) Screw the fittings (4, fig. 4-33) into
manifold. Support the exhaust system
position on the fuel pump.
before removing the intake manifold.
(2) Position the gasket (7) and the fuel pump
(6) on the engine crankcase and secure with the two cap
(6) Remove the two machine bolts (3, fig. 4-
screws (15) and lock washer (14
35) and lock washers (4) securing the carburetor (9) and
(3) Position the fuel tube (9) on the carburetor
gasket (12) to the intake manifold (1).
and fuel pump and secure with the two tube nuts (8).
(7) Remove the adapter (8) from the
(4) Position the main fuel tube on the fuel
carburetor and, on serial nos. L-1475-T through L1478-
pump and secure with the tube nut.
d. Test.
T units, the pipe plug (13) from the manifold.
(1) Remove the fuel tube (11, fig. 4-32) from
WARNING
the carburetor (16) and fuel pump (6, fig. 4-33). (2)
Dry cleaning solvent, P-D-680 or P-S-
Install a pressure tester and adapter between the fuel
661, used to clean parts is potentially
pump and the carburetor.
dangerous
to
personnel
and
(3) Start the engine and run at idle speed.
property. Use in a well-ventilated
(4) Observe the pressure reading on the
gage. The correct reading is between 3 and 4 lbs. (1.
area as the fumes are dangerous if
35 and 1. 8 kg).
inhaled.
Avoid repeated and
(5) If the correct reading is not obtained,
prolonged skin contact. Do not use
check the fuel tubes and fitting between the fuel pump
near open flame or excessive heat.
and fuel tank for leaks. (6) Remove the pressure tester
Flash point of solvent is 100F. -138F.
and adapter.
(38C. -59C. ).
(7) Position the fuel tube (11, fig. 4-32 on the
carburetor and fuel pump and secure with the two tube
b. Cleaning and Inspection. Wipe the carburetor
nuts (10).
with a cloth dampened in cleaning solvent. Wash all the
other parts in cleaning solvent. Replace all damaged
4-30. Carburetor And Intake Manifold
parts and gaskets. Replace the carburetor if it is
a. Removal and Disassembly.
defective.
(1) Remove the fuel tube (11, fig. 4-32).
c. Reassembly, Installation and Adjustment.
(2) Remove the throttle rod (25) from the
Reverse the removal and disassembly procedures. Turn
lever and unscrew it from the carburetor throttle lever.
idle adjusting screw (7, fig. 4-32) as needed to get
(3) Loosen the hose clamp (14, fig. 4-34).
smoothest idle possible.
4-41
