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 a. Removal
18. Timing Gear Cover
(1) Remove camshaft timing gear (par.
a. Removal.
19).
(1)
Remove fan drive pulley (par. 17).
(2) Remove crankshaft timing gear with a
(2)
Remove governor (par. 34).
puller.
(3)
Remove capscrews that secure
b. Inspection. Inspect gear for wear, cracks, and
timing gear cover to front engine
chipped teeth. Replace gear if necessary.
mount and block up front of engine.
c. Installation Reverse procedure in a above,
(4) Remove timing gear cover attaching
making sure that timing marks (fig. 6) on crankshaft and
capscrews (9 and 15, fig. 5) and lock-
camshaft gear are properly alined.
washers (8 and 19).
(5) Remove timing gear cover (7) and
gasket (6).
21. Camshaft
(6) If necessary, remove the timing gear
a. Removal
cover seal (14) by tapping it out.
(1) Remove engine (par. 12).
b. Installation. Reverse procedure in a above and
(2) Remove oil pump assembly ((1) and
replace seal and gasket.
(2), par. 16a).
(3) Remove camshaft gear (par. 19).
19. Camshaft Timing Gear
(4) Remove woodruff key (6, fig. 7).
a. Removal
(5) Remove thrust plate attaching bolts (7)
and lockwashers (3).
(1) Remove timing gear cover (per. 18).
(6) Remove thrust plate (2).
(2) Straighten tine on key washer (fig. 6).
(7) Be sure that all valve lifters have been
(3) Remove self-locking nut.
raised and securely tied.
(4) Use a gear puller and remove cam-shaft
(8) Pull camshaft (1) forward to remove it.
timing gear.
b. Inspection and Service.
b. Inspection. Inspect ear for wear, cracks, or
(1) Mount camshaft in V-block, and
chipped teeth. Replace gear if necessary.
measure for alignment and out-of-
c. Inspection Reverse procedure in a above,
round with a dial indicator as cam-
making sure that timing marks on camshaft and
shaft is rotated.
crankshaft gears are properly alined (fig. 6).
20. Crankshaft Timing Gear
1
Head, cylinder
25
Gasket, filler block-to-oil pan
2
Plug, pipe
26
Plug, magnetic, drain
3
Rod, gage, liquid level
27
Gasket, drain plug
4
Nut, plain
28
Bolt, assembled washer
5
Washer, flat
29
Pan, oil
6
Stud
30
Spring, helical, compression
7
Cap assembly, oil filler
31
Gasket relief valve plug
8
Nipple, pipe, oil filter
32
Plug, relief valve
9
Cock, drain cylinder block
33
Washer, flat, adjusting, relief valve
10
Dowel, rim, front end plate
34
Valve, oil pressure relief
11
Cap, bearing, front
35
Capscrew
12
Cap, bearing, front intermediate
36
Lockwasher
13
Cap, bearing, rear intermediate
37
Block, filler, rear
14
Cap, bearing, rear
38
Stud, plain
15
Plug, pipe
39
Nut, sleeve
16
Pin, transmit,
40
Gasket, valve chamber cover nut
17
Bushing, sleeve, bearing cap, rear intermediate
41
Cover assembly valve chamber
18
Washer, flat
42
Gasket, valve chamber cover
19
Capscrew
43
Stud, plain, end
20
Capscrew
44
Plug, fusible
21
Gasket, oil pan side
45
Plug, expansion
22
Block, filler, front
46
Plug , expansion
23
Lockwasher
47
Gasket, cylinder head
24
Capscrew
Figure 4. Engine block, head, and oil pan, exploded view.
AGO 7010A
9
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