615® 634ai – Sears 536.25587 User Manual

Page 65

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ENGINE MODEL 402707-1235-01 FOR 43" TRACTOR MODEL 536.255870

615®

634AI

40

35

868

36

819

^0 45

219 A

REF,

PART

NO, NO.

DESCRIPTION

16

24
25

393382 Crankshaft

Note: Order S4195 For

Timing Gear Key,

222698 Key-Flywheel
394955 Piston Assy,

(Standard)

394956 Piston Assy

{,010” O.S,)

394957 Piston Assy

{,020" O.S.)

394958 Piston Assy

(.030" O.S.)

PISTON RING SETS:

26

394959 Ring Set-Piston

(Standard)

394960 Ring Set-Piston

(.010* O.S,)

394961 Ring Set-Piston

( 020" O.S.)

394962 Ring Set-Piston

(.030” O.S.)

REF.

PART

NO. NO.

DESCRIPTION

27

260924

28

299691

391286

29

492667

Note:

32

94671

33
34
35

36
40
41

39D420

261528

65906
26828

221596

292260

Lock-Piston Pin
Pin Assy-Piston

(Standard)
Pin Assembly-
Piston (.005” O.S.)
Rod Assembly­
Connecting
For Connecting Rod
With .020" Undersize

Crankpln Bore-Order
N0.397158.
Screw-Connecting
Rod
Valve-Exhaust
Valve-Intake

Spring-Intake Valve
Spring-Exhaust Valve

Retainer-intake Valve
Rotocoil-Exhaust
Valve

REF.

NO

PART

NO.

DESCRIPTION

42

93630

45
46

219

219A

220

230

552

552A

615

616

634A

741

819

868

261368
213421
393415

394348
222773
223882

262332
262331

94296

491530

*491287

262694

94675

393606

Retainer-Exhaust
Valve Rotocoil (2)
Tappet-Valve
Gear-Cam
Oil Slinger Assembly
Gear-Governor
Washer-Thrust
Washer-Gov. Crank

(Inside)
Lower Bushing-Gov.

Upper Bushing- Gov,
Relainer-E-Ring
Crank-Governor
Seal-Governor Shaft

Gear-Timing

Screw-Hex Hd.

Seal Assy. & Retainer

* Included in Gasket Set-Part No. 491856,

Assemblies include all parts shown in frames.

65

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