Sears 917.25591 - Manual (Page 41)

HiPAlB PABTS
GT 18 TWIN GARDEN TRACTOR-MODEL NUMBER 917.2SS910
ENGINE-MODEL NUMBER 422437, TYPE NUMBER 0721-01
CYLINDER, CRANKSHAFT AND ENGINE BASE GROUP
KEY PART DESCRIPTION KEY PART
NO- NO,
NO NO
1 394900 Cylinder Assembly
35 271316
2 39 Ш6 Seal - Oil 36 296004
3 212461 Head - Cylinder No. 1
37 394348
4 212462 Head - Cylinder No. 2 38 89838
5 27Ш4 ‘Gasket ■ Cylinder Head No 1 39 22(^63
6
7 27СШЗ
393243
‘Gasket - Cylinder He®! No, 2
Breather Assembly No, 1
40 394539
8 393153 Breather Assembly No. 2 41 90576
9 27803 ‘Gasket Valve Cover 42 231174
10 93394 Screw Sem 43 280180
11 27Ш2 ‘Gasket Crankcase Cover 1/64“' Thick 44 394014
11 271145 ‘Gasket - Crankcase (ktver ,0£^" Thick 45 Ш38
11 271146 ‘Gasket - Crankcase Cover ,009" Thick
46 392782
12 93113 Screw . Cylinder Head (2 - 15/16" long)
47 93783
13 93111 Screw - Cylinder Head (1 ■ 15/16" tong) 48 223055
14 91Ш4 Rug - Oil Drain 49 394391
15 394430 Crankshaft 50 27(Ш1
16 394535 Cower Assembly • Crankcase 51 222700
17 291675 Seal - Oil 52 93053
18 93847 Screw - Oankcm Cower Mtg. Sem 53 93851
19 394955 Piston Assembly ■ Standard (Inc,
Key No's 20&22)
54
55
394396
66538
19 394956 Piston Assembly - .010" O.S. 56 93448
10 394957
Piston Assembly - .020" O S. 5? 222698
19 394958 Piston Assembly • .030" O.S. 58 22(Й63
20 394959 Ring Set - Piston - Stendard 59 222773
20 394960 Ring Set - Piston - ,010" O.S, 261363
20 394961 Ring Set • Piston • ,020" 0-S. 61 393606
20 394962 Ring ^t ■ Piston .030" O.S,
62 393741
21 394023 Dipstick and Tube Assembly (Inc.
Key No's 44,45 6i46i
63
64 231218
210940
22 260924 Lock - Piston Pin
65
66
67
68
261463
261559
39Ш5
230318
23 299691 Pin Assembly - Piston ■ Standard
(Inc. Key No. 22)
23 391286 Pin Assembly ■ Rsion ,005" O S 69 92791
24 394306 Rod Assembly - Connecting 70 93722
25 223053 Dipper - Connecting Rod 71 261528
26 92Ш Screw Connecting Rod 72 92268
27 390420 Valwe Exhaust " 73 261623
28
29 ^906
2^28 Spring Intake Valwe
Spring Exhaust Valve 74 261560
30 221596 Retainer Intake Valve •Inc. ini
31
33
34
292260
93630
261368
212337 Rotocoil Exhaust
Retainer Exhaust Valve Rotocoil
Tappet Valve
Gear Cam
+Speclai
DESCRIPTION
Foam Ifeal • Governor Shaft
Pips * Fuel (Inc. Key No, S2)
Gear - Governor
Wrench • Spark Plug
Washer • Gov. Crank |in$ide|
Plug ’ Spark (Resistor! (2 3/8 hi#j - 60
mm I
Nut-Hex8-32
Terminal
Grommet ■ Insulator
Cap and Dipstick • Oil Filler
&aL Filler Tube
Tube ■ Oil Filler
Screw • Hex Hd,
Trough Dipper
Base • Engine
‘Gasket * Engine Base
Baffle • Air
Clamp • Fuel Pipe
Retairter • E-Ring
Crank • Governor
Elbow ■ Spark Plug
Plug • Hex Socket
Key • Flywheel
Washer
Washer • Thrust
Gear - Timing
Seal AssV* and Retainer
Searing - Ball (P,TO, side)
+Guicte - Exhaust Valve
+^at - Exhaust Valve (Stinderd)
-f-Seat * intake Valve (StandardI
Lower Bushing • Gov.
Wire • Ground
Connector - Fuel Pipe
Washer - Lock Shakeproof
Terminal Spade
Valve ■ Intake
Washer
+ Bearing - Cylinder
Upper Bushing - Governor
ket Set ■ 394501
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