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REPAIR PARTS
GT 18 TWIN GARDEN TRACTOR--MODEL NUMBER 917.255915
ENGINE--MODEL NUMBER 422437, TYPE NUMBER 0758-01
CYLINDER, CRANKSHAFT AND ENGINE BASE GROUP
KEY PART DESCRIPTION KEY PART DESCRIPTION
N0 NO. NO. NOn
0 1 491685 Cylinder Assembly
0 2 391086 Seal-Oil
03 212461 Head-Cylinder No, I
04 212462 Head-Cylinder No_ 2
05 271867 Gasket-Cylinder Head No t
06 271868 Gasket-Cylinder Head No 2
0 7 393243 Breather Assembly No,, I
0 8 393153 Breather Assembly No,, 2
0 9 27803 Gasket-Valve Cover
i 0 93394 Screw_Sem
I I 270982 Gasket_Crankcase Cover
1/64" Thick
1 1 271145 Gasket-Crankcase Cover
,005"" Thick
1 I 271146 Gasket-Crankcase Cover
.,009"" Thick
12 93113 Screw-Cylinder Head
(2_5/16" long)
1 3 93111 Screw-Cylinder Head
(I- 15/16" long)
14 Plyg-Oi! Drain
15 394430
16 394535
i 7 291675
1 8 93847
19 394955
19 394956
19 394957
19 394958
20 394959
20 394960
2 0 394961
20 394962
2 1 398990
22 260924
23 299691
23 391286
24 394306
25 223053
26 92909
2 7 390420
28 65906
29 26828
30 221596
3 1 292260
32 93630
33 261368
Crankshaft - order part 94196
Key for retaining timing gear
Cover Assembly - Crankcase
Seal-Oil
Screw-Crankcase cover Mtg, Sere
Piston Assembly-Standard lnc, Key
No,'s 20 & 22)
Piston Assembly - •010"" O S..
Piston Assembly - ,.020"" O S.,
Piston Assembly - ,030" O,S,
Ring Set - Piston - Standard
Ringe Set-Piston - _010"" O ,S.
Ring Set - Piston - 020" O.S,
Ring Set - Piston -, 030" O.So)
Dipstick and Tube Assembly (inc,
Key No's. 44, 45 & 46)
Lock-Piston Pin
Pin Assembly - Piston
Standard (Inc, Key No., 22)
Pin - Assembly-Piston- O05"" OoS,
Rod Assembly-Connecting
For Connecting Rod with ,020""
Crankpin bore order No. 397158
Dipper-Connecting Rod
Screw-Connecting Rod
Valve-Exhaust
SpringJntake Valve
Spring-Exhaust Valve
Retainer-intake Valve
Rotocoil-Exhaust
Retainer=Exhaust Valve Rotocofl
Tappet-Valve
3 4 212337 Gear-Cam
35 271316 Foam Seal - Governor Shaft
3 6 296004 Pipe - Fuel 23" cut to lenght
3 7 394348 Gear - Governor.
3 8 89838 Wrench-Spark Plug
3 9 220863 Washer-Gov., Crank (inside)
40 394539 Plug-Spark (Resistor))2_3/8
high.6Omm)
4 I 90576 Nut-Hex 8-32
4 2 231774 Terminal
4 3 280180 Gommet - Insulator
4 4 398924 Cap and Dipstick-Oill Filler
4 5 68838 Seal-Filter Tube
4 6 280220 Tube - Oil Filler
4 7 93783 Screw-Hex Hd
4 8 223055 Trough-Dipper
4 9 394391 Base-Engine
5 0 270981 Gasket-Engine Base
5 ! 222700 Guide Air
5 2 93053 Clamp*Fuel Pipe
5 3 93851 Retianer-E-Ring
5 4 394396 Crank-Governor
5 5 66538 Etbo w-Spark Plug
5 6 93448 Plug.Hex Socket
5 7 222698 Key-Flywheel
5 B 220863 Washer
59 222773 Washer-Thrust
60 231445 Gear-Timing
6 1 393606 Seal Ass'y, and Retainer
6 2 39374 t Bearing-Ball (P,,T, 0 side)
6 3 26196 t Guide-Exhaust Valve
NOTE: 231218 Intake Valve Guide
Only (Brass)
6 4 210940 Seat-Exhaust Valve (Standard)
6 5 261463 Seat-Intake Valve (Standard)
66 261559 Lower Bushing _ Gov
6 7 398808 Wire-Ground
68 230318 COnnector-Fuel Pipe
6 9 92 791 Washer-Lock Shakeproof
70 93722 Terminal-Spade
7 1 261528 Valve,Intake
7 2 92268 Washer
73 191523 Bearing-CylinJer
74 261560 Upper Bushing-Governor
7 5 93886 Screw
7 6 271170 Seal Tube
7 7 271174 Gasket - Exhaust
*INCLUDED IN GASKET SET 394501
+ SPECIAL TOOLS REQUIRED TO INSTALL
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