Tecumseh HH150

HH150-170001  

Page 1 of 9  

Engine Parts List #1  

HH150-170001  

Page 2 of 9  

Engine Parts List #1  

Ref # Part Number  

Qty Description  

Cylinder (Incl. 2, 4 & 33) (3-1/2" Bo re)  

1

33464A  

31927  

28483  

2

2

2

2

2

4

5

Pipe Plug, 3/8-18 sq. head (Use as re quired)  

Pipe Plug (3/8-18 hex countersunk) (A s req.)  

Pipe Plug (3/4-14 sq.hd.)(As req.)(Bu y local)  

Pipe Plug (1/8-27 sq. hd.) (Use as re quired)  

Pipe Plug(1/8-27 hex c/sunk headless) (As req)  

Pin, Dowel  

9556  

28534  

27652  

33497C  

Crankshaft (Incl. 6 thru 9, 140 & 141 )  

NOTE: When  

using this crankshaft to repair older units equippedwith  

straight cut cam and governor gears,it will be necessary to  

order 34751 helical governor gear assembly and 34752  

helical camshaft in order to the complete the repair.  

6

7

8

9

29783  

31931  

31932  

31928  

Pin, Crankshaft gear  

Gear, Crankshaft (Straight)  

Bearing, Tapered roller  

Cup, Bearing  

1

1 34511  

1 34512  

1 34513  

1A 32238B  

1A 32239B  

1A 32240B  

2 31919  

3 32241  

3 32242  

3 32243  

4 33093A  

4 34383  

4 34384  

5 32077  

6 26073  

7 28264  

8 33470  

9 33472  

0 33471  

1 33505  

1 33645  

2 33506  

2 33646  

3 33507  

4 33508  

5 33509  

5A 34410  

6 33510  

7 33473  

8 650745  

9 35479  

9 30590A  

0 31948  

1 31956B  

2 33466  

3 31950  

4 650451  

5 650492  

6 32425  

7 32426  

8 29193  

Piston, Pin & Ring Set (Std.) (3-1/2" Bore)  

Piston, Pin & Ring Set (.010" OS)  

Piston, Pin & Ring Set (.020" OS)  

Piston & Pin Ass'y. (Std.)(3-1/2")(In cl.12)  

Piston & Pin Ass'y. (.010" OS) (Incl. 12)  

Piston & Pin Ass'y. (.020 " OS) (Incl . 12)  

Ring, Piston pin retaining  

Ring Set (Std.) (3-1/2" Bore)  

Ring Set (.010" OS)  

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

2

2

2

Ring Set (.020" OS)  

Connecting Rod Assy.(Std.)(Incl.15, 1 6 & 17)  

Connecting Rod Assy.(.010" US)(Incl.1 5,16,17)  

Connecting Rod Assy.(.020" US)(Incl.1 5,16.17)  

Bolt, Connecting rod  

Washer, Connecting rod  

Nut Assy.  

Camshaft (MCR) (Straight)  

Lifter, Valve  

Rod, Push  

Intake Valve (Std.)  

Intake Valve (1/32" OS)  

Exhaust Valve (Std.)  

Exhaust Valve (1/32" OS)  

Spring, Valve  

Retainer & Cap Set, Keeper valve  

* "O" Ring (Intake only) (Also Incl. in 251)  

* "O" Ring (Exhaust only) (Also Incl. i n 251)  

Cap, Valve  

Governor Gear & Shaft Ass'y. (Straigh t)  

Washer, Flat  

Washer, Flat (Use with 35322 spool)  

Washer, Flat  

Spool, Governor  

* Gasket, Cylinder cover  

Cylinder Cover Ass'y. (Incl.2, 33 & 1 34)  

* Seal, Oil  

Screw, 1/4-20 x 1"  

Screw, 1/4-20 x 2-1/4"  

2

2

2

2

2

2

2

2

2

2

3

3

3

3

3

3

3

3

3

Rod Assy., Governor  

Spacer, Governor rod  

Ring, Retaining  

HH150-170001  

Page 3 of 9  

Engine Parts List #1  

Ref # Part Number  

9 650687  

0 33495  

1 34225A  

2 33465  

5 33657  

6A 650691  

6 650690  

7 650692  

7A 650746  

8 730218  

9 792035  

0 33515A  

1 33475  

2 650378  

3 792028  

4 33476A  

5 33477A  

6 792075  

7 33478  

8 31963  

9 31964  

0 650518  

1 30312  

2 650544  

3 7975  

4 31965  

5 33054  

6 28558  

7 31966  

8 650597  

9 31967  

0 650591  

1 33099  

2 32599  

3 650666  

4 32579  

5 650561  

6 650592  

7A 730201  

7 610854  

8 650594  

9 610855  

0 650661  

1 33479  

2 30063  

3 650751  

4 33775A  

5 8274  

5A 8274  

6A 650595  

6 650595  

7 650752  

8 35475  

9 33481  

0 34754  

4 33484  

5 650168  

6 32610A  

Qty Description  

Screw, 10-32 x 5/16"  

3

4

4

4

Cover, Cylinder head  

* Gasket, Cylinder head  

Head, Cylinder  

Spark Plug (L-82C)  

Washer, Flat  

4

4

4

4

Washer, Belleville  

Screw, 5/16-18 x 1-3/4"  

Screw, 5/16-18 x 1-3/8"  

Valve Guide Kit (Incl. 49)  

Ring, Retaining  

* Gasket, Intake pipe  

Pipe, Intake  

Screw, Torx T-30, 5/16-18 x 1-1/8"  

Screw, 5/16-18 x 7/8"  

* Gasket, Carburetor  

Baffle, Air cleaner  

Nut, Lock 5/16-24 (Used in early prod uction)  

Link, Governor lever-to-throttle leve r  

Lever, Governor  

Clamp, Governor lever  

Lockwasher, No. 10 E.T.  

Screw, 10-32 x 1/2"  

Screw, Torx T-25, 10-24 x 7/8"  

Nut, 10-24  

Plate, Governor spring  

Lever Assy., Control  

Washer, Wave  

Bushing, Governor lever  

Screw, 10-24 x 5/8"  

Spring, Governor  

Screw, 10-24 x 2"  

Spring  

"O" Ring (Incl. in 251)  

Washer, Lock  

Baffle, Blower housing  

Screw, 1/4-20 x 5/8"  

Key, Flywheel  

Trigger Pin Kit (Use as required)  

Flywheel  

Nut, Flywheel  

4

4

4

5

5

5

5

5

5

5

5

5

5

6

6

6

6

6

6

6

6

6

6

7

7

7

7

7

7

7

7

7

7

7

8

8

8

8

8

Solid State Magneto (Incl. 158, 159 & 160)  

Screw, 1/4-20 x 3/4"  

Extension, Blower housing  

Screw, 1/4-20 x 1/2"  

Screw, 1/4-20 x 7/16"  

Blower Hsg.(Incl.218A,219)(For elec.s tarter)  

Washer, Lock  

8

8

8

Washer, Lock  

Screw, 5/16-24 x 3/8"  

Screw, 5/16-24 x 3/8"  

Screw, 1/4-20 x 7/16"  

Tube, Push rod  

* "O" Ring (Also Incl. in 251)  

Housing, Rocker arm  

* "O" Ring (Also Incl. in 251)  

Washer, Flat  

8

8

8

8

9

9

9

9

Screw, 1/4-20 x 29/32"  

HH150-170001  

Page 4 of 9  

Engine Parts List #1  

Ref # Part Number  

7 33485  

8 33486  

9 650755  

00 650864  

01 650756  

02 33487  

03 33488  

04 31958A  

05 33489  

06 33490  

07 30102  

08 650738  

11 35471  

12 35472  

14 650399  

15 32008  

16A 32810  

17 650513  

18 650675  

19 32426  

20 33776  

22 650670  

23 27070  

25 650590  

26 32043B  

27 32808  

37 650744  

38 33467  

46 32577  

Qty Description  

9

9

9

1

1

1

1

1

1

1

1

1

1

1

1

1

Arm, Rocker  

Ring, Retaining  

Screw, 1/4-20 x 3/4"  

Nut, Hex, 1/4-20  

Stud, Rocker arm  

* "O" Ring (Also Incl. in 251)  

Cover, Rocker arm  

* Gasket, Breather (Also Incl. in 251)  

Body Assy., Breather  

Tube, Breather  

* Screw, 10-32 x 5/8" (Also Incl. in 25 1)  

Screw, 1/4-20 x 5/8"  

* Gasket, Air cleaner  

Bracket, Air cleaner  

Screw, 10-32 x 5/8"  

Element, Air cleaner  

Cover, Air cleaner  

Nut, Wing  

Washer, Flat  

Spacer, Screen  

Screen, Pulley  

Screw, 1/4-20 x 3/4"  

Washer, Lock  

Nut, Conduit  

Muffler  

1

1

1

1

1

1

1

1

1

1

1

1

1

Nipple, Exhaust pipe  

Screw, 10-24 x 7/8"  

Tube extension, Oil fill  

Cover, Cylinder NOTE: Determine the gap between the cover  

and the machined surface on the cylinder, which can be  

from .001" up to .007", in which case no shim gaskets will be  

required. Use of gaskets must be limited to a combined total  

of .010" thick. Steel spacersmust be used as required to eli  

1

47 792028  

Screw, 5/16-18 x 7/8"  

155 31971  

* Gasket, Shim (.004/.005 thick) NOTE: Determine the gap  

between the cover and the machined surface on the  

cylinder, which can be from .001" up to .007", in which case  

no shim gaskets will be required. Use of gaskets must be  

limited to a combined total of .010" thick. Steel  

spacersmust be used a  

156 31972  

* Gasket, Shim (.005/.007 thick) NOTE: Determine the gap  

between the cover and the machined surface on the  

cylinder, which can be from .001" up to .007", in which case  

no shim gaskets will be required. Use of gaskets must be  

limited to a combined total of .010" thick. Steel  

spacersmust be used a  

157 32031  

* Spacer, Steel (.010 thick) NOTE: Determine the gap  

between the cover and the machined surface on the  

cylinder, which can be from .001" up to .007", in which case  

no shim gaskets will be required. Use of gaskets must be  

limited to a combined total of .010" thick. Steel  

spacersmust be used as re  

1

1

1

1

58 610118  

59 610750  

60 610408  

89 33764  

Cover, Spark plug  

Grommet, Lead wire  

Nut, 8-32  

Dipstick (Incl. 190)  

HH150-170001  

Page 5 of 9  

Engine Parts List #1  

Ref # Part Number  

90 29985  

91 33468  

92 29673  

93 29443  

44A 550223  

44A 32676  

44B 31752  

44 34346  

46 631687  

47 631680  

Qty Description  

"O" Ring  

1

1

1

1

Tube Assy., Oil filler  

* Gasket, Oil filler tube  

Clip, Wire  

2

2

2

Decal, Name  

Decal, Solid state  

Decal, Air cleaner  

Decal, Instruction  

Valve, Seat & Spring Assy.  

Carburetor (Incl. 54 & 246) (Refer to Division 5, Section A,  

page 124 for breakdown)  

2

2

2

2

50 33516G  

* Gasket Set (Incl. items marked *)  

"O" Ring Kit (Incl. Nos. items marked +)  

251 35075  

HH150-170001  

Page 6 of 9  

Engine Parts List #2  

HH150-170001  

Page 7 of 9  

Engine Parts List #2  

Ref # Part Number  

9 650687  

2 30063  

26A 35731  

32 33500A  

Qty Description  

Screw, 10-32 x 5/16"  

3

8

Screw, 1/4-20 x 1/2"  

Muffler (Incl. 126B)  

Counterbalance Weight Ass'y. Kit (Gears have helical teeth,  

which replace earlier straight tooth gears) (Incl. 33963 gear &  

1

1

33965 weights)  

1

1

1

1

1

1

1

33 33501  

34 33502  

35 33503  

36 792017  

40 33499  

41 33963  

41  

Bearing, Needle  

Shaft, Counterbalance  

Washer, Thrust  

Ring, Retaining  

Spacer  

Gear, Counterbalance weight (Helical teeth)  

Gear, Counterbalance weight (Straight teeth) (For  

replacement see Ref. 132. Order correct kit for your  

enginemodel number.)  

1

1

1

1

1

1

48 610761  

49 650416  

51 610749  

53 792028  

53 650781  

62 610819  

63A 610922  

09 730178  

10 34102B  

11 30196  

38 730212  

Alt.Coil Ass'y.(Incl.162A & 163) (10 amp)  

Screw, 10-32 x 1"  

Regulator (10 Amp)  

Screw, 5/16-18 x 7/8"(Use w/32817 str .motor)  

Screw,5/16-18 x 11/16"(Use w/33835 st r.motor)  

Connector, Pyramid  

1

Terminal  

2

2

2

2

Ech.Adapter Kit (Incl.210 & 211)(As r equired)  

Gasket, Exhaust (Use as required)  

Screw, 5/16-18 x 3/4" (Use as require d)  

Adapter Plate Kit (Optional) NOTE: If you are having  

mounting problems in using a HH100 thru0H180 inplace of a  

large frame competitivebrand, we would like to call your  

attention to 730212 adapter plate kit. The kit converts the  

bottom mounting system found on HH100 thru 0H180 to a  

top mounting sys  

249 33835  

Electric Starter Motor (12-Volt) (Refer to Division 5, Section  

D for breakdown)  

HH150-170001  

Page 8 of 9  

Engine Parts List #3  

HH150-170001  

Page 9 of 9  

Engine Parts List #3  

Ref # Part Number  

14 650399  

15 32008  

17 650513  

19 32426  

22 650670  

23 27070  

43 29774  

43 30705  

43 30962  

44 32959  

45 33010  

71B 32958  

78 410144B  

78 34210  

Qty Description  

Screw, 10-32 x 5/8"  

1

1

1

1

1

1

1

1

Element, Air cleaner  

Nut, Wing  

Spacer, Screen  

Screw, 1/4-20 x 3/4"  

Washer, Lock  

Fuel Line (Braided 8.25")(21 cm)(As r equired)  

Fuel Line (Braided 16")(41 cm)(As req uired)  

Fuel Line (Braided 32")(81 cm)(As req uired)  

Pump, Impulse fuel  

Repair Kit, Impulse fuel pump  

Fitting, Fuel pump  

Fuel Cap (White Plastic)(Std)(As requ ired)  

Fuel Cap (Red Plastic) (Spurt resistant, High profile) (Use as  

required)  

1

1

1

1

1

1

1

96 26460  

Clamp, Fuel line (Use as required)  

Rewind Starter Kit (Incl.120A, 121, 122, 187, 188 & 248)  

245 730134  

(Use as required)