Sears 917.373981 - Manual (Page 24)

CRAFTSMAN 4-CYCLE ENGINE MODEL NO. 143.945504
REF
NO.
PART
NO. DESCRIPTION
REF PART
NO. NO. DESCRIPTION
1 36478 Cylinder (Includes Ref. #2 and 20) 169 27234A * Valve Cover Gasket
2 26727 Dowel Pin 172 32755 Valve Cover
6 33734 Breather Element 174 30200 Screw #10-24x9/16
7 34214A Breather Assembiy (includes 178 29752 Nut & Lock Washer 1/4-28
8 33735
Reference #6, 8,9,12 and 12B)
* Breather Gasket
182 6201
184 26756
Screw 1/4-28x7/8
* Carburetor To Intake Pipe Gasket
9 30200 Screw #10-24x9/16 185 31384A Intake Pipe (Includes Ref. #224)
12 33886 Breather T ube 186 34337 Governor Link
12B 34695 - Breather Tube Elbow 189 650839 Screw 1/4-20x3/8
14 28277 Washer 190 35831 Brake Lever
15 30589 Governor Rod (Includes Ref. #14) 191 35039B S.E. Brake Bracket (Includes #195)
16 31383A Governor Lever 192 34966 Brake Control Link
17 31335 Governor Lever Clamp 193 34965 Brake Spring
18 650548 Screw #8-32x5/16 194 32309 Retaining Ring
19 36281 Extension Spring 195 610973 Terminal
20 32600 Oil Seal 200 35727 Control Bracket (Incl. #202-205)
30 35801 Crankshaft 202 36482 Compression Spring
40 36073 Piston, Pin & Ring Set, Std. Size 203 31342 Compression Spring
36074 Piston, Pin & Ring Set, .010" Over 204 650549 Screw #5-40x7/16
36075 Piston, Pin & Ring Set, .020" Over 205 650777 Screw #6-32x21/32
41 36070 Piston & Pin Assembly, Std. Size 207 34336 Throttle Link
36071 Piston & Pin Assembiy, .010" Over 215 35511 Control Knob
36072 Piston & Pin Assembly, .020" Over 223 650451 Screw 1/4-20 X 1
42 36076
(Assemblys Include Reference #43)
Ring Set, Piston, Standard Size 224 34690A
238 650932
* Intake Pipe Gasket
Screw #10-32x49/64
36077 Ring Set, Piston, .010" Oversize 239 34338 * Air Cleaner Gasket
36078 Ring Set, Piston, .020" Oversize 241 35797 Air Cleaner Collar
43 20381 Piston Pin Retaining Ring 245 35066 Air Cleaner Filter
45 32875 Connecting Rod Assy. (Incl. #46) 250 35065 Air Cleaner Cover
46 32610A Connecting Rod Bolt 260 35826 Blower Housing
48 27241 Valve Lifter 262 650831 Screw #1/4-20x1/2
50 35992 Camshaft (MCR) 263A 35821 Starter Grill
52 29914 Oii Pump Assembly 275 36473 Muffler (Includes Reference #277)
69 35261 * Mounting Flange Gasket 275B 391020 Spark Arrestor Muffler (Optional)
70 34311D Mounting Flange (Incl. #72 thru 83) 277 650795 Screw 1/4-20x2-1/4
72 30572 Oil Drain Plug 285 35000 Starter Cup
73 28833 Drain Plug Gasket 287 650926 Screw #8-32x21/64
75 27897 Oil Seal 290 34357 Fuel Line
80 30574A Governor Shaft 292 26460 Fuel Line Clamp
81 30590A Washer 300 35586 Fuel Tank (Includes #292 and 301)
82 30591 Governor Gear Assy. (Incl. #81) 301 35355 Fuel Cap
83 30588A Governor Spool 305 35819A Oii Fiii Tube
86 650488 Screw 1/4-20x1-1/4 306 34265 * 0-Ring
89 611004 Flywheel Key 307 35499 O-Ring
90 611109 Flywheel 309 650936 Screw #10-32x13/32
92 650815 Belleville Washer 310 35822 Dipstick
93 650816 Flywheel Nut 313 34080 Spacer
100 34443A Solid State Ignition 347 650898 Screw #10-32x27/32
101 610118 Spark Plug Cover 370 36261 Instruction Decal
103 650814 Screw, TorxT-15 #10-24x1 370A 35167 Instruction Decal
110 34961 Ground Wire 380 632681 Carburetor (Includes Ref. #184)
119 36477 * Cylinder Head Gasket 390 590702 Rewind Starter
120 36476 Cylinder Head 400 36481 Gasket Set (Incl. items marked*)
125 36471
36472
Exhaust Valve, Standard Size
Exhaust Valve, 1/32" Oversize NOTE: This engine could have been built with starter
126 29314B Intake Valve, Standard Size #590637. Refer to the design of the air intake louvers
29315C Intake Valve, 1/32" Oversize for part identification (individual starter parts do not
130
135
6021A
35395
(All Valves Include Reference #151)
Screw 5/16-18x1-1/2
Resistor Spark Plug (RJ19LM)
interchange).
RPM Settings: Low: 2450-2750, High: 2900-3200
150
151
35991
31673
Valve Spring
Valve Spring Cap
NOTE: All component dimensions given in U.S. inches
166 35827 Engine Shroud 1 inch - 25.4 mm
24