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  5. Corken 491 Compressor

Corken 491 Compressor

The Corken 491 Compressor is a heavy-duty, oil-free reciprocating compressor built for reliable operation in a variety of industrial gas-handling applications. With a focus on performance and durability, this model is widely used in industries requiring the transfer, recovery, or compression of gases under challenging conditions.

CATEGORY:
BRAND:
TYPE:

Returns & Refunds Policy

Warranty Against Defects

Original Products

Ships Worldwide

Dedicate Support

The Corken 491 Compressor is an exceptional choice for LPG (propane) and ammonia applications. This durable and efficient reciprocating compressor is engineered for reliable performance, making it a trusted solution in demanding gas-handling environments.

  • Inlet Size: 1-1/4".
  • Maximum Flow Rate:
    • 215 GPM (48.8 m³/h), ensuring high-capacity gas transfer.
  • Compressor Type:
    • Reciprocating, oil-free design for clean and efficient operation.

Specifications

Model

491/F491

Bore of cylinder: inches (mm)

4.0 (101.6)

Stroke: inches (mm)

3.0 (76.2)

Piston displacement cfm (m3/hr)

minimum @ 400 RPM

axmimum @ 825 RPM

 

17.5 (29.7)

36.0 (61.2)

Maximum working pressure: psig (bar g)

335 (23.1)

Maximum brake horsepower: hp (kW)

15 (11)

Maximum rod load: lb (kg)

4,000 (1,814)

Maximum outlet temperature: °F (°C)

350 (177)

Minimum inlet temperature: °F (°C)

-25 (-32)

Bare unit weight: lb (kg)

390 (176.9)

Maximum flow-propane: gpm (m3/hr)

215 (48.8) b

Class 300 RF flange/DIN flange option

Yes

 

Standard Components

  1. Steel Baseplate:

    • Provides a durable and stable foundation.

  2. V-Belt Drive:

    • Ensures efficient power transfer from the driver to the compressor.

  3. Adjustable Driver-Side Base:

    • Facilitates precise alignment and belt tensioning for optimal performance.

  4. Enclosed Steel Guard:

    • Enhances safety by fully enclosing the V-belt drive mechanism.

  5. Pressure Gauges:

    • Mounted on the compressor for real-time suction and discharge pressure monitoring.

  6. 40-Micron Strainer:

    • Protects the compressor by filtering out particulates and debris.

  7. Non-Lube 4-Way Valve:

    • Maintenance-free directional control valve for smooth operation.

  8. Interconnecting Piping:

    • Fully assembled for easy integration into the system.

  9. Liquid Trap:

    • Prevents liquid slugging and protects the compressor (mounting options detailed below).

Mounting Options

107 Mounting

  • Mechanical Liquid Trap:
    • Equipped with a ball float for reliable liquid removal during operation.

107A Mounting

  • Automatic Liquid Trap:
    • Includes one NEMA 7 liquid level switch for enhanced control of liquid levels.

107B Mounting

  • Advanced Automatic Liquid Trap:
    • Features two NEMA 7 liquid level switches for added redundancy and safety.

107F Mounting

  • High-Performance Configuration:
    • Incorporates the 107A or 107B setup with Class 300 RF flanged components and connections, ideal for high-pressure and heavy-duty applications.

Standard Components

  1. Steel Baseplate:

    • Provides a solid and durable foundation for the entire assembly.

  2. V-Belt Drive:

    • Efficiently transfers power from the driver to the compressor.

  3. Adjustable Driver-Side Base:

    • Allows for precise alignment and tensioning of the V-belt to ensure optimal performance.

  4. Enclosed Steel Guard:

    • Protects personnel by fully covering the V-belt drive mechanism.

  5. Pressure Gauges:

    • Mounted on the compressor to provide real-time monitoring of suction and discharge pressures.

  6. 40-Micron Strainer:

    • Ensures the system is protected by filtering out particulates and debris.

  7. Non-Lube 4-Way Valve:

    • A maintenance-free valve for smooth directional control.

  8. Interconnecting Piping:

    • Fully integrated to simplify installation and operation.

  9. Liquid Trap:

    • Essential for preventing liquid slugging and protecting the compressor (options specified below).

Mounting Options

109 Mounting

  • Mechanical Liquid Trap:
    • Features a ball float for simple and effective liquid removal during operation.

109A Mounting

  • Automatic Liquid Trap:
    • Includes one NEMA 7 liquid level switch for automated liquid control and monitoring.

109B Mounting

  • Advanced Automatic Liquid Trap:
    • Features two NEMA 7 liquid level switches for added control and redundancy.

109F Mounting

  • Enhanced Configuration:
    • Combines the 109A or 109B mounting with Class 300 RF flanged components and connections, making it suitable for high-pressure and heavy-duty applications.

Mounting Style

Description

Part No.

Model Reference

Ship Weight (Ib) Compressor w/ Mounting

103 Style

Mounting includes steel baseplate, adjustable driver slide base, V-belt drive and enclosed belt guard. Pressure gauges are mounted on the compressor.

103-6 (a) (b)

491AM3FBANSNN

480

103HD

Heavy duty version of the 103 mounting listed above

103HD-6 (a) (b)

491AM3FBANHNN

-

107 Style

Mounting includes steel baseplate, mechanical liquid trap, non-lube 4-way valve, interconnecting piping, strainer, adjustable driver slide base, V-belt drive and enclosed belt guard. Pressure gauges are mounted on the compressor

107-5 (a) (b)

491AM3FBANSNN

570

107A Style

Mounting includes steel baseplate, automatic liquid trap with NEMA 7 liquid level switch to stop compressor. Non-lube 4-way valve, interconnecting piping, strainer, adjustable driver slide base, V-belt drive and enclosed belt guard. Pressure gauges are mounted on the compressor.

107A-5 (a) (b)
107A-16 (a) (b)

491AM3FBANSNN
F491AM3FBANSNN

570
580

107B Style

Mounting includes steel baseplate, ASME code liquid trap with two NEMA 7 liquid level switches for alarm and to stop compressor. Non-lube 4-way valve interconnecting piping, strainer and adjustable driver slide base, V-belt drive and enclosed belt guard. Pressure gauges are mounted on the compressor.

107B-5 (a) (b)

491AM3FBANSNN

830

107TR Style

Mounting set up to be used as a transport unit. Mounting includes steel baseplate, mechanical liquid trap, non-lube 4-way valve, interconnecting piping, and strainer.
Pressure gauges are mounted on the compressor.

107TR-50

491AE3FBANENN

470

109 Style

Mounting includes steel baseplate, mechanical liquid trap, interconnecting piping, adjustable driver slide base, V-belt drive and enclosed belt guard. Pressure gauges mounted on the compressor.

109-7 (a) (b)

491AM3FBANSNN

550

109A Style

Mounting includes steel baseplate, automatic liquid trap with NEMA 7 liquid level, switch to stop compressor, interconnecting piping, adjustable driver slide base, V-belt drive and enclosed belt guard. Pressure gauges are mounted on the compressor.

109A-7 (a) (b)

491AM3FBANSNN

550

109B Style

Mounting includes steel baseplate, ASME automatic liquid trap with two NEMA 7, liquid level switches for alarm and to stop compressor, interconnecting piping, adjustable driver slide base, V-belt drive and enclosed belt guard. Pressure gauges are mounted on the compressor.

109B-7 (a) (b)

491AM3FBANSNN

805

109TR Style

Mounting set up to be used as a transport unit. Mounting includes steel baseplate, mechanical liquid trap, and interconnecting piping. Pressure gauges are mounted, on the compressor.

109TR-70

491AE3FBANENN

450

Please note:
Above mountings are not applicable to the flanged compressors models F91–F691.
(a) Specify compressor speed
(b) Specify motor frame size (motor frequency / hertz)
(e) These units are not supplied with relief valves. A relief valve must be installed that is suitable for the service relief valve(s).
(f) Compressors must be equipped with extended crankshaft and special flywheel in order to use this mounting.

 

 

 

Service

 

 

 

Capacity 1

 

 

 

Displacement cfm

 

 

 

Compressor

 

 

Driver Sheave Size P.D." 2

Driver Horsepower

 

 

 

Piping Size 3

Liquid Transfer and Residual Vapor

Recovery

Liquid Transfer without Residual Vapor

Recovery

Model

RPM

1,750 RPM

1,450 RPM

100°F

80°F

100°F

80°F

Vapor

Liquid

 

Small bulk plants

23

4

91

400

A 3.0

B 3.6

5

3

3

3

3/4

1-1/4

29

5

91

505

B 3.8

B 4.6

5

5

5

5

3/4

1-1/4

34

6

91

590

B 4.6

B 5.6

5

5

5

5

1

1-1/4

40

7

91

695

B 5.4

B 6.6

5

5

5

5

1

1-1/2

39

7

291

345

A 3.0

A 3.6

3

3

3

3

1

1-1/2

 

 

Unloading single tank car or transport

45

8

91

800

B 6.2

B 7.4

7-1/2

7-1/2

7-1/2

7-1/2

1

1-1/2

44

8

291

390

A 3.4

B 4.0

5

3

3

3

1

1-1/2

50

9

291

435

A 3.8

B 4.6

5

5

3

3

1

1-1/2

56

10

291

490

B 4.4

B 5.2

5

5

5

5

1

2

61

11

291

535

B 4.8

B 5.8

5

5

5

5

1

2

66

12

291

580

B 5.2

B 6.2

7-1/2

5

5

5

1

2

71

13

291

625

B 5.6

B 6.6

7-1/2

5

7-1/2

5

1-1/4

2

79

14

291

695

B 6.2

B 7.4

7-1/2

7-1/2

7-1/2

7-1/2

1-1/4

2

84

15

291

735

B 6.6

B 8.0

10

7-1/2

10

7-1/2

1-1/4

2-1/2

84

15

491

345

A 3.0

A 3.6

7-1/2

7-1/2

5

5

1-1/4

2-1/2

89

16

291

780

B 7.0

B 8.6

10

10

10

10

1-1/4

2-1/2

89

16

491

370

A 3.2

A 3.8

7-1/2

7-1/2

7-1/2

5

1-1/4

2-1/2

 

 

 

 

Unloading two or more tank cars

at one time or large transport with excess flow valves of adequate capacity

95

17

491

390

A 3.4

B 4.0

7-1/2

7-1/2

7-1/2

7-1/2

1-1/4

3

101

18

491

415

A 3.6

B 4.4

10

7-1/2

7-1/2

7-1/2

1-1/4

3

106

19

491

435

A 3.8

B 4.6

10

7-1/2

7-1/2

7-1/2

1-1/4

3

108

20

491

445

B 4.0

B 4.8

10

7-1/2

7-1/2

7-1/2

1-1/4

3

114

21

491

470

B 4.2

B 5.0

10

7-1/2

7-1/2

7-1/2

1-1/4

3

119

22

491

490

B 4.4

B 5.2

10

10

7-1/2

7-1/2

1-1/4

3

125

23

491

515

B 4.6

B 5.6

10

10

10

7-1/2

1-1/4

3

130

24

491

535

B 4.8

B 5.8

15

10

10

10

1-1/4

3

136

25

491

560

B 5.0

B 6.0

15

10

10

10

1-1/4

3

141

26

491

580

B 5.2

B 6.2

15

10

10

10

1-1/4

3

147

27

491

605

B 5.4

B 6.4

15

10

15

10

1-1/4

3

152

28

491

625

B 5.6

B 6.6

15

15

15

15

1-1/2

3

158

29

491

650

B 5.8

B 7.0

15

15

15

15

1-1/2

3

163

30

491

670

B 6.0

 

15

15

15

15

1-1/2

3

163

30

691

400

B 4.4

B 5.2

15

15

10

10

1-1/2

3

168

31

491

695

B 6.2

B 7.4

15

15

15

15

1-1/2

3

171

31

691

420

B 4.6

B 5.6

15

15

10

10

1-1/2

3

179

32

491

740

B 6.6

B 8.0

15

15

15

15

1-1/2

3

178

32

691

440

B 4.8

B 5.8

15

15

10

10

1-1/2

3

186

34

691

455

B 5.0

B 6.0

15

15

15

10

1-1/2

3

193

35

691

475

B 5.2

B 6.2

15

15

15

10

1-1/2

3

200

36

691

495

B 5.4

B 6.4

15

15

15

15

1-1/2

3

 

 

Unloading large  tank cars, multiple vessels, barges or terminals

208

38

691

510

B 5.6

B 6.8

20

15

15

15

1-1/2

4

215

39

691

530

B 5.8

B 7.0

20

15

15

15

1-1/2

4

223

41

691

550

B 6.0

A 7.0

20

15

15

15

1-1/2

4

230

42

691

565

B 6.2

B 7.4

20

15

15

15

2

4

237

43

691

585

B 6.4

A 7.4

20

15

15

15

2

4

245

45

691

605

B 6.6

B 8.0

20

15

15

15

2

4

252

46

691

620

B 6.8

 

20

20

15

15

2

4

260

47

691

640

B 7.0

A 8.2

20

20

20

15

2

4

275

48

691

675

B 7.4

B 8.6

25

20

20

20

2

4

297

54

691

730

B 8.0

B 9.4

25

20

20

20

2

4

319

58

691

785

B 8.6

 

25

20

25

20

2

4

334

60

691

820

TB 9.0

A 10.6

30

25

25

20

2

4

452

82

D/FD891

580

5V 7.1

5V 8.5

30

30

30

30

3

6

623

113

D/FD891

800

5V 9.75

5V 11.8

 

40

40

30

3

6

 

 

 

 

Service

 

 

 

Capacity 1

 

 

 

Displacement cfm

 

 

 

Compressor

 

 

Driver Sheave Size P.D." 2

Driver Horsepower

 

 

 

Piping Size 3

Liquid Transfer and Residual Vapor

Recovery

Liquid Transfer without Residual Vapor

Recovery

Model

RPM

1,750 RPM

1,450 RPM

100°F

80°F

100°F

80°F

Vapor

Liquid

 

Small bulk plants

23

4

91

400

A 3.0

B 3.6

5

3

3

3

3/4

1-1/4

29

5

91

505

B 3.8

B 4.6

5

5

5

3

3/4

1-1/4

34

6

91

590

B 4.6

B 5.6

5

5

5

5

1

1-1/4

40

7

91

695

B 5.4

B 6.6

5

5

5

5

1

1-1/2

43

7

291

345

A 3.0

A 3.6

5

3

3

3

1

1-1/2

 

 

Unloading single tank car or transport

46

8

91

800

B 6.2

B 7.4

7-1/2

5

5

5

1

1-1/2

45

8

291

390

A 3.4

B 4.0

5

3

3

3

1

1-1/2

50

9

291

435

A 3.8

B 4.6

5

5

3

3

1

1-1/2

56

10

291

490

B 4.4

B 5.2

5

5

5

3

1

2

62

11

291

535

B 4.8

B 5.8

7-1/2

5

5

5

1

2

67

12

291

580

B 5.2

B 6.2

7-1/2

5

5

5

1

2

72

13

291

625

B 5.6

B 6.6

7-1/2

5

5

5

1-1/4

2

80

14

291

695

B 6.2

B 7.4

7-1/2

7-1/2

7-1/2

5

1-1/4

2

85

15

291

735

B 6.6

B 8.0

10

7-1/2

7-1/2

7-1/2

1-1/4

2-1/2

85

15

491

345

A 3.0

A 3.6

7-1/2

7-1/2

5

5

1-1/4

2-1/2

90

16

291

780

B 7.0

B 8.6

10

7-1/2

7-1/2

7-1/2

1-1/4

2-1/2

90

16

491

370

A 3.2

A 3.8

10

7-1/2

5

5

1-1/4

2-1/2

 

 

 

 

Unloading two or more tank cars

at one time or large transport with excess flow valves of adequate capacity

96

17

491

390

A 3.4

B 4.0

10

7-1/2

5

5

1-1/4

3

102

18

491

415

A 3.6

B 4.4

10

7-1/2

7-1/2

7-1/2

1-1/4

3

107

19

491

435

A 3.8

B 4.6

10

7-1/2

7-1/2

7-1/2

1-1/4

3

110

20

491

445

B 4.0

B 4.8

10

7-1/2

7-1/2

7-1/2

1-1/4

3

115

21

491

470

B 4.2

B 5.0

10

7-1/2

7-1/2

7-1/2

1-1/4

3

120

22

491

490

B 4.4

B 5.2

15

10

7-1/2

7-1/2

1-1/4

3

126

23

491

515

B 4.6

B 5.6

15

10

7-1/2

7-1/2

1-1/4

3

131

24

491

535

B 4.8

B 5.8

15

10

10

7-1/2

1-1/4

3

138

25

491

560

B 5.0

B 6.0

15

10

10

7-1/2

1-1/4

3

142

26

491

580

B 5.2

B 6.2

15

10

10

7-1/2

1-1/4

3

148

27

491

605

B 5.4

B 6.4

15

10

10

10

1-1/4

3

153

28

491

625

B 5.6

B 6.6

15

10

10

10

1-1/2

3

160

29

491

650

B 5.8

B 7.0

15

15

10

10

1-1/2

3

165

30

491

670

B 6.0

 

15

15

15

10

1-1/2

3

165

30

691

400

B 4.4

B 5.2

15

15

10

10

1-1/2

3

170

31

491

695

B 6.2

B 7.4

15

15

15

10

1-1/2

3

173

31

691

420

B 4.6

B 5.6

15

15

10

10

1-1/2

3

181

32

491

740

B 6.6

B 8.0

15

15

15

15

1-1/2

3

180

32

691

440

B 4.8

B 5.8

15

15

10

10

1-1/2

3

188

34

691

455

B 5.0

B 6.0

20

15

10

10

1-1/2

3

195

35

691

475

B 5.2

B 6.2

20

15

10

10

1-1/2

3

203

36

691

495

B 5.4

B 6.4

20

15

15

10

1-1/2

3

 

 

Unloading large  tank cars, multiple vessels, barges or terminals

211

38

691

510

B 5.6

B 6.8

20

15

15

10

1-1/2

4

218

39

691

530

B 5.8

B 7.0

20

15

15

15

1-1/2

4

226

41

691

550

B 6.0

A 7.0

20

15

15

15

1-1/2

4

233

42

691

565

B 6.2

B 7.4

20

15

15

15

2

4

240

43

691

585

B 6.4

A 7.4

20

20

15

15

2

4

248

45

691

605

B 6.6

B 8.0

20

20

15

15

2

4

255

45

691

620

B 6.8

 

25

20

15

15

2

4

263

47

691

640

B 7.0

A 8.2

25

20

15

15

2

4

278

48

691

675

B 7.4

B 8.6

25

20

15

15

2

4

301

54

691

730

B 8.0

B 9.4

25

20

20

15

2

4

323

58

691

785

B 8.6

 

30

25

20

20

2

4

338

60

691

820

TB 9.0

A 10.6

30

25

20

20

2

4

459

82

D/FD891

580

5V 7.1

5V 8.5

40

30

30

30

3

6

633

113

D/FD891

800

5V 9.75

5V 11.8

 

40

40

30

3

6

 

Compressor repair Kits

part number

3551-x1

model number

490K3, 491m3

Suction valve assembly

2532-1X

discharge valve assembly

2439-X (2)2

Valve cage

2448 (4)2

Connecting rod bearing (pair)

1491 (2)2

Packing set

1452-1X1 (2)2

Piston rings

1773 (6)2

ring expanders

1776 (6)2

Gasket set1

1481-X6A1

O-ring1

—

O-ring1

2-242A (2)1, 2

O-ring1

2-253A (2)1, 2

Oil seal

1507 (490 only)

Oil seal

4438 (491 only)

Adapter plate gasket

1486


Model 491 gasket set (1481-x6A)

part number

description

Quantity

1418

Valve gasket, aluminum

4

1480

Center headbolt gasket - steel

2

1488

Inspection plate gasket

1

1511

Crankcase inspection plate gas

1

2-139A

O-ring, buna-N

2

2-228A

O-ring, buna-N

1

1281

Filter screen screw gasket

1

1478

Valve cap gasket, steel

4

1481

Head gasket

1

1489

Crankcase gasket

1

1513

bearing carrier gasket

1

2-143A

O-ring, buna-N

4

2-243A

O-ring, buna-N

2


Packing Assembly bill of materials

ref no.

part no.

description

Qty

1.

3713a

Cylinder (491 w/O- ring)

1

2.

2-243_b

O-ring for cylinder

2

3.

5000-137

retainer ring

2

4.

1012

Washer

2

5.

1628

Packing spring

2

6.

1714

Packing box washer

2

7.

1453-1

Male packing ring

2

8.

1454c

Packing ring

6

9.

1452-1

Female packing ring

2

10.

2801

Cartridge holddown screw

2

11.

2799

Packing box cartridge

2

12.

1387

Adjusting screw

2

13.

2-139_b

O-ring (packing cartridge)

2

14.

2765d

Crosshead guide

1

15.

1489

Crankcase gasket

1

16.

1452-1X1

Packing set

2

17.

1488

Inspection plate gasket

1

18.

1487

Inspection plate

1

19.

7003-

025NC037E

1/4-20x3/8"

4

not shown

1192

Locking device

4


Additional Assembly

Assembly number

Assembly name

1384-X

Crosshead assembly


Piston Assembly number 1985-x

ref no.

part no.

description

Qty

1.

7002-025OC125A

Screw, socket head

8

7207-025A

Lock Washer

8

2.

1985

Head, iron

1

3.

1776

ring expander

3

4.

1773

Piston ring

3

5.

1482

Locknut

1

6.

1483

Lock pin

1

7.

1986

Piston platform

1

8.

1528

Shim washer, thick

As req.

1528-1

Shim washer, thin

9.

1527

Thrust washer

1


Four-Way Valve Repair Kits

description

trim

part number

Connection sizes

 

Four-Way Valve repair Kits

 

PTFE and buna-N trim

3122-X

1"

3123-X

1¼"

263130-X

2"


Compressor Head Assembly

ref no.

part no.

description

1.

2914d

Head—ductile iron (491)

2.

3712e

Head—ductile iron (491)

3.

4297

Head—ANSI flanged (F491)

 

4297-1

Head flanged - din spec. only (F492)

4.

1481c

Head gasket (490 and 491)

5.

2-253_b,c,e

O-ring (491)

6.

3442

Pipe plug—1/4" NPT

7.

1479c

Center head bolt

8.

1480-1c

Center head bolt gasket (copper)

1480c

Center head bolt gasket (steel)

 

9.

7005-043NC125Ac

bolt, 7/16-14 x 1-1/4" ferry head (490 & 491 prior to serial # FZ44188)

7005-043NC150Ac

bolt, 7/16-14 x 1-1/2" ferry head (491 serial # FZ44188 and later)

10.

1477

Valve screw nut

11.

1478

Gasket (steel)

 

1478-1a

Gasket (copper)

 

1478-2

Gasket (iron)

12.

1476

Valve holddown screw

13.

1475

Valve cover plate

14.

2-143_b

O-ring for cover plate

15.

1409f

Valve spacer

16.

2448

Cage

 

17.

1418

Valve gasket (aluminum)

1418-1a

Valve gasket (copper)

1418-2a

Valve gasket (iron)

18.

2446

bolt

19.

2438

Suction valve seat

20.

2442

Valve plate

21.

2445f

Spacer (two per valve)

22.

3355

Washer

23.

1407

Valve spring

24.

2440

Suction valve bumper

25.

2441

discharge valve bumper

26.

2439

discharge valve seat

27.

2533-1

Adjusting screw

28.

1411

relief ball spring

29.

1410

relief ball

30.

2532-1

Suction valve seat

31.

2534-1

Suction valve post

32.

2447

Suction valve bumper

33.

7001-043NC125A

bolt (7/16-14 x 1-1/4” hex head)


Compressor Valve Assembly

ref no.

valve Assembly no.

Assembly name

 

 

 

101.

2438-X

Suction valve assembly (see ref. no. 7, 17, 18, 19, 20, 21(2), 22, 23, 24)

2438-X1a

Same as 2438-X but with copper gaskets

2438-X2a

Same as 2438-X but with iron-lead gaskets

 

 

 

102.

2439-X

discharge valve assembly (see ref. no. 7, 17, 18, 20, 21(2), 22, 26, 25)

2439-X1a

Same as 2439-X but with copper gaskets

2439-X2a

Same as 2439-X but with iron-lead gaskets

 

 

103.

2532-1X

Suction valve assembly (spec. 3) with aluminum

2532-1X1a

Same as 2532-1X but with copper

2532-1X2a

Same as 2532-1X but with iron-lead

head Assembly no.

model

valve specification

2914-X2d

491

4

2914-X4d

491

3

3712-X1e

491

3

3712-X2e

491

4

4297-X1

F491

3

4297-X2

F491

4

4297-1X1

F492

3

4297-1X2

F492

4


Connecting rod Assembly

ref no.

part no.

description

1.

1384-X

Crosshead assembly

2.

1498

retainer ring

3.

1496

Wrist pin

4.

1495-Xa,b

Wrist pin bushing

5.

1492b

bolt

6.

1490-X

Connecting rod assembly

7.

1490b

Connecting rod

8.

1491b

Connecting rod bearing

9.

1493b,c

Nut


Crankcase Assembly

ref no.

part no.

description

1.

4438

Oil seal

2.

7001-037NC075A

Hex head bolt 3/8-16 x 3/4

2-1.

7001-031NC075A

Hex head bolt 5/16-18 x 3/4

3.

2847-1

bearing cover

 

4.

1504

bearing adjustment shim (0.005")

1504-1

bearing adjustment shim (0.007")

1504-2

bearing adjustment shim (0.020")

5.

1502

bearing cup

6.

1508-X

Oil bayonet

7.

1511

Crankcase inspection plate gasket

8.

2853

Crankcase inspection plate

9.

2-112_c

O-ring (oil bayonet & pump shaft)

10.

2803b

Crankcase

11.

1279

breather cap

12.

2-111_c

O-ring (breather cap)

13.

2796

breather ball

14.

1483

Lock pin

15.

1663

Flywheel key

16.

1501

bearing cone

 

17.

1499-X

Crankshaft assembly with 1284 (2),

1286, 1499, 1501, 1503, 2590

1499-SX

Extended crankshaft assembly with 1284 (2),1286, 1499-S, 1501, 1503, 2590

18.

1284

Crankcase orifice (2)

19.

1503

bearing cone

20.

1286

Pump shaft drive pin

21.

1459

Crankshaft plug (depends on design)

2590

Pipe plug (depends on design)

22.

1280

Filter screw

23.

1281

Filter screen screw gasket

24.

2-116_c

O-ring (filter screen)

25.

1276

Filter screen washer

26.

1275

Oil filter screen

27

3289

Pipe plug

28.

1661

Plug 3/8" NPT

29.

1290

relief valve adjusting screw

30.

1291

Adjusting screw locknut

31.

2-011_c

O-ring (relief valve adjusting screw)

32.

1292

relief valve spring

33.

1293

relief valve ball

34.

1500

bearing cup

35.

2961-X

Air release valve assembly with 2961, 2962, 2963

36.

1513

bearing carrier gasket

37.

2804

bearing carrier

38.

2-218_c

O-ring (closure body) (2) (Spec. 3, 4, 8,

9 only)

39

1515-X

Closure cap assembly

40.

7001-025NC050A

Hex head bolt 1/4-20 x 1/2

41.

1302

Oil pressure gauge

ref no.

part no.

description

42.

2-228_c

O-ring (pump cover)

43.

4222-X

Oil filter assembly - external

44.

1629

1/16" NPT pipe plug, flush seal

45.

7001-037NC100A

Hex head bolt 3/8-16 x 1

46.

2805-X

Pump shaft bushing

47.

2850

Pump shaft adapter

48.

2852

Oil pump spring

49.

2851

Spring guide

50.

2849-X

Oil pump assembly (individual pump parts not available)

51.

2798

Pump cover pin with 2848-X

2848-X

Pump cover (includes pin)

52.

4225

Oil filter


Other Assemblies

Assembly number

Assembly name

1279-X

breather cap assembly with 1279, 2-111A

1499-X

Crankshaft assembly with 1284 (2), 1286, 1499, 1501,

1503, 2590

1499-SXa

Extended crankshaft assembly with 1284 (2), 1286,

1499-S, 1501, 1503, 2590

1508-X1

Oil bayonet assembly with 1508-X, 2-112A

1515-X

Closure cap assembly including 2-218A (2), (Spec. 3, 4, 8, 9 only)

 

2804-X

bearing carrier assembly with 1290, 1291, 1292,

1293, 1500, 1513, 1515-X, 1629 (2), 2590, 2804,

2849-X, 2850, 2851, 2852, 2961-X, 2-011A, 2-112A,

2-228A, 4222-X

2847-1X

bearing cover assembly with 2847-1, 3855

3271-Xa

Flywheel assembly with 3271, 3217 (not part of crankcase assembly (not shown)


Flywheel Assembly

Assembly number

Assembly name

 

2549-X

Flywheel assembly (flywheel, hub, and three bolts)

2549

Flywheel: 16" O.d.,

3 groove

 

H SF-1.375

Hub with three bolts and lockwashers

 

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