Tecumseh OHM120-224602A User Manual

OHM120-224602APage 1 of 6
Engine Parts List #1

Ref # Part Number Qty Description

1 37083 Cylinder (Incl. 2, 20, 72 & 80)1
2 27652 Dowel Pin2

14 28277 Washer1

14A 651057 Washer1

15 35685 Governor Rod (Incl. 14 & 38)1
16 35686 Governor Lever1
17 29916 Governor Lever Clamp1
18 651028 Screw, Torx T-15, 8-32 x 3/8"1
19 35688 Extension Spring1

19D 33857 Extension Spring Assembly1

20 35319 Oil Seal1
25 36460 Blower Housing Baffle1
26 650561 Screw, 1/4-20 x 5/8"2
28 30322 Lock Nut, 10-321

OHM120-224602APage 2 of 6
Engine Parts List #1

30 35680A Crankshaft1
31 35327 Counterbalance Gear1
35 29826 Screw, 10-32 x 3/4"1
36 29918 Lock Washer1
37 29216 Lock Nut, 10-321
38 29642 Retaining Ring3
40 35776A Piston, Pin & Ring Set (Std.)1
40 35777A Piston, Pin & Ring Set (.010" OS)1
40 35778A Piston, Pin & Ring Set (.020" OS)1
41 35773A Piston & Pin Ass'y (Std.) (Incl. 43)1
41 35774A Piston & Pin Ass'y (.010" OS) (Incl. 43)1
41 35775A Piston & Pin Ass'y (.020" OS) (Incl. 43)1
42 35779 Ring Set (Std.)1
42 35780 Ring Set (.010" OS)1
42 35781 Ring Set (.020" OS)1
43 35772 Piston Pin Retaining Ring2
45 36898 Connecting Rod Ass'y (Incl. 47)1
47 651033 Connecting Rod Bolt2
48 35313 Valve Lifter2
50 35682A Camshaft (MCR)1
51 35315A Counterbalance Weight1
60 35316A Blower Housing Extension1
65 650784 Screw, 10-24 x 11/16"1
66 650561 Screw, 1/4-20 x 19/32"1
69 35683 * Cylinder Cover Gasket1
70 35684A Cylinder Cover (Incl.14,15,38,71,75)1
71 35377 Crankshaft Bushing1
72 27642 Oil Drain Plug2
75 35319 Oil Seal1
80 35751 Governor Shaft1
81 35479 Washer2
82 35321 Governor Gear Ass'y1
83 35322 Governor Spool1
84 29193 Retaining Ring1
86 650833 Screw, 1/4-20 x 1-3/16"7
87 650832 Screw, 1/4-20 x 1-11/16"1
89 32589 Flywheel Key1
90 611094 Flywheel (W/Ring Gear)1
92 650880 Lock Washer1

93 650881 Flywheel Nut1
100 35135 Solid State Ignition1
101 610118 Spark Plug Cover1