SDEC Engine SC11CB220G

Product Description

CHAPTER ONE

MAIN TECHNICAL SPECIFICATIONS

GENERAL ENGINE SPECIFICATIONS

ENGINE DESIGN

Model

C4121

C6121

Bore

120.7mm (4.75 in)

120.7 mm (4.75 in)

Stroke

152.4 mm (6.00 in)

152.4 mm (6.00 in)

Number of Cylinders

4

6

Cylinder Arrangement

* In-line

Firing Order (Injection Sequence)

1, 3, 4, 2

1, 5, 3, 6, 2, 4

Direction   of  Rotation   (Viewed   from Flywheel End)

Counterclockwise

Counterclockwise

The No. 1 cylinder is opposite the flywheel end.

Exhaust valve

Inlet valves

Schematic diagram of C6121 cylinders and valves

Inlet valves

Schematic diagram of C4121 cylinders and valves

MAIN ENGINE DATA

Engine Data

Applicable Construction Machinery

D6D

Bulldozer

D7G

Bulldozer

966E

loader

936E

loader

518

Log Skidder

980S

loader

Model

C6121ZG01

C6121ZG02

C6121ZG03

C4121ZG01

C4121ZG02

C4121ZG03

General Assembly No.

7C0574

1W0543

9Y1719

9Y1721

2W3989

9Y3134

Accessory Assembly No.

2W0129

1W2527

6N3056

7N7752

7C1650

9Y3133

Engine Test Spec. No.

0T6394

0T4823

0T7593

0T7595

0T3405

0T7903

Rated Power    (kW)

114

160

174

108

104

216

Rated Speed    (r/min)

1900

2000

2200

2200

2200

2100

Maximum Torque (N.m)

688

919

903

564

547

1225

Maximum  Torque  Check Speed    (r/min)

1400

1500

1400

1400

1500

1200

Injection Timing

(Before T.D.C)

21°

21°

21°

21°

21°

14°

Fuel  Setting (i.e.   Rack Position) at Rated Condition  (mm)

-1.40

1.10

1.35

1.15

0.80

1.87`

Fuel Setting   at   Max. Torque    (mm)

-0.65

2.20

1.80

1.35

1.00

3.00

Torque Rise  (%)

20.0

20.0

20.0

20.0

21.0

25.0

Maximum

 o-Load

speed (r/min)

2050

2130

2360

2360

2360

2320

Idle

Speed (r/min)

765

750

750

865

725

725

Maximum Permissible Altitude (m)

3750

2250

2400

2800

3000

2000