Craftsman 917.255919 Owner's Manual page 45

REPAUR PARTS
GT TWIN GARDEN TRACTOR - MODEL NUMBER 917.255919
ENGINE BRIGGS & STRATTON - MODEL NUMBER 422437, TYPE NUMBER 1256-01
CYLINDER,CRANKSHAFT AND ENGINE BASE GROUP
KEY PART DESCRIPTION KEY PART DESCRIPTION
N O. NO. NO NO
0t
02
03
04
05
06
07
O8
09
1o
tt
ti
11
t3
14
15
I6
17
18
t9
t9
19
19
20
20
2O
20
2I
22
23
23
24
25
26
27
28
29
30
31
32
33
491685 Cylinder Assembly 34 212337
391086 Seal.Oil 35 491287
212461 Head-Cylinder No. ! 36 296004
212462 Head-Cylinder No 2 37 394348
271867 Gasket-Cylinder Head No. 1 38 89838
271868 Gasket.Cylinder Head No 2 39 220863
393243 Breather Assembly No I 40 394539
393153 Breather Assembly No 2
27803 Gasket-Valve Cover 41 90576
94382 Screw-Sere
270982 Gasket.Crankcase Cover
1/64" Thick 44 398924
271145 Gasket.Crankcase Cover 45 68838
005"" Thick 46 280220
27! 146 Gasket.Crankcase Cover 47 93783
009"" Thick 48 223055
93211 Screw-Cylinder Head 49 394391
(2-21/32" long) 50 270981
91084 Plug-Oil Drain 51 222700
394430 Crankshaft - order part 94196 52 93053
Key tor retaining timing gear 53 94296
394535 Cover Assembly - Crankcase 54 491530
29 t 675 Seal-Of 55 68538
93847 Screw.Crankcase cover Mlg Sem 56 93448
394955 Piston Assembly.Standard/nc Key No s 57 222696,
20 & 22) 58 220863
394956 Piston Assembly - 010" 0 S 59 222773
394957 Piston Assembly. 020" O S 60 231445
394958 Piston Assembly. 030 °_0 S 61 393606
394959 Ring Set - Piston - Standard 62 393741
394960 Rittg Set _ Piston - 0t0' 0 S 63 261961
394961 Ring Set - Piston - 020" 0 S
394962 Ring Set. Piston - 030" 0 S
398990 Dipstick and Tube Assembly (lnc 64 210940
Key No's 44, 45 & 46) 65 261463
260924 Lock-Piston Pin 86 262332
299691 Pin Assembly. Piston 67 398808
Standard (lnc, Key No 22) 68 230318
39 t286 Pin * Assembly*Piston- 005- 0 S 69 9279 I
394306 Rod Assembly-Connecting 70 93722
For Connecting Rod with 020" 71 261528
Crankpin bore order No 397158 72 92268
223053 Dipper.Connecting Rod 73 49 I523
92909 Screw.Connecting Rod 74 262331
390420 Valve-Exhaust 75 93886
65906 Spring-Intake Valve 76 27t t70
26828 Spring-Exhaust Valve 77 27t t 74
221596 Retainer-Intake Valve 78 223882
292260 Rotocoil.Exhaust
93630 Retainer-Exhaust Valve Roto_ Cap
261368 Tappet-Valve
Gear.Cam
Foam Seat -, Governor Shall
Pipe ,, Fuel 23 ' cut to length
Gear o Governor
Wrench.Spark Plug
Washer-Gov Crank Ims_de)
** Plug.Spark (Resistor) 2-3/8
high-6Omm)
Nut.Hex 8.32
Cap and (]ipslJck.OJl F_i_er
Seat-Filler Tube
Tube * Od Filter
Screw-Hex Hd
Trough,Dipper
Base-Engine
Gasket.Engme Base
Guide Air
Clamp-Fuel Pipe
Retainer.ERing
Crank.Governor
Elbow-Spark Plug
Ptug.,Hex Socket
Key.Flywheel
Washer
Washer.. Thrust
Gear,.Timmg
Seal Ass y and Retainer
Bearing.Bait (P T 0 s_del
Guide-Exhaust Valve
NOTE 231218 Intake Valve Guide
Only (Brass)
Seat.Exhaust Valve (Standard)
Seat.Intake Valve (Standard)
Lower Bushing ,, Gev
Wire.Ground
Connector.Fuel P_pe
Washer.Lock Shakeproof
TermJnal,,Spade
Valve.Intake
Washer
Bearing,.Cyhnder
Upper Bushing.Governor
Screw
Sea! Tube
Gasket. Exhaust
Washer - Gov Shah
"INCLUDED IN GASKET SET 394501
+ SPECIAL TOOLS REQUIRED TO iNSTALL
** Use resistor plug, Champion RJ19LM or eqivalent
45