Engine, Repair par – Sears 917.255741 User Manual
Page 39
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REPAIR PAR
12 H.P. 38" RIDING LAWN TRACTOR -MODEL NUMBER 917,255741
ENGINE- MODEL NUMBER 143,366202
ENGINE
KEY
PART
DESCRIPTION
KEY
PART
DESCRIPTION
NO.
NO.
NO.
NO.
1
35323
Cylinder Assy (Incl Nos 8 & 13>
65
32610A
Screw, Flanged hex hd , 1/4-20 x
2
28277
Washer, Flat
29/32
3
35324
Rod, Governor
66
t‘33509
"0” Ring (Intake)
4
32651
Lever, Governor
67
t*34410
"0" Ring (Exhaust)
5
29916
Clarhp. Throttle lever
68
33510
Cap, Valve spring
6
650548
Screw. Hex washer hd , 8-32 x 5/16
69
33507
Spring, Vatve
7
35203
Spring, Control
70
33508
Cap, Valve spring keeper
8
35319
Seal, Oil
71
t*35295
"0" Ring
9
35326
Baffle, Blower housing
72
35296
Guide, Push rod
10
650561
Screw, Hex washer hd Durlok, 1/4-20
73
650878
Stud, Rocker arm
x 5 / 8
7 4
35297
Arm, Rocker
11
35336
Crankshaft Assy. (Counterbalance)
75
35298
Bearing, Rocker arm
12
35327
Gear, Counterbalance
76
28264
Nut, Lock
13
27652
Pin, Dowel
77
33471
Rod, Push
14
29826
Screw, Hex washer hd , 10-32 x 3/4
78
t*35299
"0" Ring
15
29216
Nut, Lock
79
35300
Cover, Rocker arm housing
16
29918
Washer, E,T, Lock
80
1*650879
Screw, Pan hd. w/seaiing
17
30322
Nut & Washer, 10-32 "Keps"
Lock washer, 8-32 x 1/2
18
29642
Ring, Retaining
82
•27896
Gasket, Valve cover
19
35329
Piston & Pin Assy, (Std.) (Incl, No. 21)
83
28423
Body, Breather
20
34866
Ring Set, Piston (Std.)
84
28424
Element, Breather
21
31919
Ring, Piston pin retaining
85
28425
Cover, Valve spring box
22
35330
Rod Assy , Connecting (IncL No. 23)
86
35350
Tube, Breather
23
650882
Screw, Connecting rod
87
650128
Screw, Fil hd, Sems, 10-24 x 1/2
24
35313
Lifter, Valve
88
35301
Extension, Blower housing
25
35314
Camshaft Assy (Mech. Compression
89
650128
Screw, Fii, hd, Sems, 10-24 x 1/2
Release)
90
6^)517
Screw, Fil, flex hd., 1/4-20 x 7/S
26
35315
Weight Assy., Counterbalance
91
•33263
Gasket, Carburetor to intake pipe
27
35316
Extension, Blower housing
92
35304
Pipe, Intake
28
650128
Screw, Fii. hd Sems, 10-24 x 1/2
93
35302
Link, Governor
28A
30688
Screw, Hex hd, Sems, 1/4-20 x 1/2
94
34109A
Bracket Assy., Control (Incl Nos. 94A
29
•35317
Gasket, Mounting flange
&84B)
30
35318
Flange, Mounting (Incl, Nos. 32, 33 &
94A
31342
Spring, Compression
34)
94B
650549
Screw, Fil hd. 5-40 x 7/16
31
31356
Pump Assy. , Oil
94C
35346
Link, Governor spring
32
31927
Plug, Oil drain
96
30200
Screw, Hex washer hd self-tap Sems,
33
35319
Sea!, Oil
10-24 X 9/16
34
35320
Shaft, Governor
97
792028
Screw, Hex hd, Sems, 5/16-18 x 7/8
35
31707A
Spacer, Governor gear (Incl No, 36)
98
•33515
Gasket, Intake pipe
36
30590A
Washer, Flat
99
35288
Brace, Intake pipe
37
35321
Gear Assy., Governor
100
650738
Screw, Hex washer spinlock hd.
38
35322
Spool, Governor
thread forming, 1/4-20 x 5/8
39
29193
Ring, Retaining
101
35338
Housing, Blower
40
650833
Screw, Hex washer hd. Powerlok,
102
30688
Screw, Hex hd, Sems, 1/4-20 x 1/2
1/4-20X 1-3/16
103
29747B
Screw, Phil Hex hd, Sems, 5/16-24 x
41
32589
Key, Fiywhee!
21/32
42
611093
Flywheel (3 Amp, w/rtng gear)
104
35290
Cover, Cylinder head
43
650880
Washer, Lock
105
mxm
Screw, Fil. hd. Sems, 5/16-18 x 1/2
44
650881
Nut, Flywheel
111
30688
Screw, Hex hd. Sems, 1/4-20 x 1/2
45
35135
Solid State Assy, Unci No, 45A)
115
35411
Screen, Starter
45A
610118
Cover, Spark plug
115A
Pop. Rivet (Can be purchased locally)
46
650872
Stud, Solid State Assy,
116
34113
Plug, Blower housing
47
650814
Screw, Hex hd, Sems, 10-24 x 1
118
23774
Line, Fuel
49
*35306
Gasket, Cylinder head
119
26460
Clamp, Fuel line
50
35307
Head Assy , Cylinder
119A
34279A
Filter, Fuel (Incl No. 119)
51
730218
Valve Guide Kit (Inc!, 2of No. 52)
120
27793
Clip, Conduit
52
34315
Ring, Retaining
121
28942
Screw, Hex washer hd. Sems, 10-32 x
53
35308
Valve, Exhaust (Std.)
3/8
54
35309
Valve, Intake (Std )
125
33992A
Tube, Oil fill
55
650691
Washer, Fiat
126
33589A
Dipstick, Oil (incl. No, 127)
56
650690
Washer, Belleville
127
33590
"0" Ring
57
650746
Screw, Hex hd , 5/16-18 x 3/8
128
34909
Body, Air cleaner
58
650692
Screw, Hex hd,, 5/16-18 x 1-3/4
129
35108
Filter, Fell air cleaner
59
34046
Resistor Spark Plug (Champion RL-
130
34910
Filter, Air cleaner
86C or equivalent!
131
650875
Screw, Fil hd, Sems, 10-32 x 5-1/4
60
1*33481
”0" Ring
131A
35437
Clip
60A
1*35358
"O’' Ring
61
33480
Tube, Push rod
62
35310
Housing, Rocker arm
63
1*33484
"O" Ring
•Indicates Parts included in
64
650168
Washer, Flat
Gasket Set Key No 174
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