propulsion 3126b engine - cat | cummins | detroit diesel · pdf filecaterpillar deo 10w30 or...

MarinePropulsionEngine

SPECIFICATIONS

I-6, 4-Stroke-Cycle-Diesel

Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . IMO compliantDisplacement . . . . . . . . . . . . . . . . . . . . . 7.2 L (442 cu. in.)Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 mm (4.33 in.)Stroke. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 mm (5.0 in.)Aspiration. . . . . . . . . . . . . . . . Turbocharged-AftercooledGovernor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ElectronicEngine Weight, Net Dry (approx) . . . . 822 kg (1812 lb)Capacity for Liquids

Cooling System . . . . . . . . . . . . . . . 39 L (10.3 U.S. gal)Lube Oil System (refill) . . . . . . . . . . 25 L (6.6 U.S. gal)

Oil Change Interval . . . . . . . . . . . . . . . . . . . . . . . . . . 500 hrCaterpillar DEO 10W30 or 15W40

Rotation (from flywheel end) . . . . . . . Counterclockwise

3126B

186 bkW (250 bhp) 254 mhp @ 2400 rpm

STANDARD EQUIPMENT

Air Inlet System

Sea water aftercooler, 12-volt air inlet heater, aircleaner with fumes disposal (closed system)

Charging System

12-volt 51 amp alternator

Cooling System

Gear-driven auxiliary sea water pump, belt-drivencentrifugal jacket water pump, auxiliary sea waterlines, expansion tank, transmission oil cooler,engine-mounted heat exchanger with removabletube bundle and replaceable copper-nickel tubes

Exhaust System

Watercooled exhaust manifold and turbocharger,fumes disposal routed to turbocharger inlet

Flywheel and Flywheel Housing

SAE No. 3 (126 teeth)

Fuel System

Fuel priming pump, fuel filter — RH or LH service

Lube System

Crankcase breather; oil filter; oil level gauge, oilfiller, oil pan drain — RH or LH service; gear-drivenengine oil pump

Mounting System

Front mount is not included (Do not use shippingmounts in permanent installation.)

Protection System

Electronic overspeed shutoff

Starting System

Rear-facing 12-volt electric starting motor

General

Vibration damper and guard, Caterpillar yellowpaint, lifting eyes

ACCESSORY EQUIPMENT

12V 110 Amp Alternator

Coolant Level Sensor

Coolant Recovery Tank

Crankshaft Pulley

Cruise Kit

12V/24V DC Converter

Dress-Up Kit

Dry Exhaust Elbow

Engine Monitoring System

Engine-to-Engine Wiring Harness

Engine Vision Display System

Flexible Fuel Lines

Front Engine Support

Front-Facing Electric Starting Motor

Fuel Cooler

Fuel Temperature Sensor

GPS Interface Module

Manual Sump Pump

Marine Power Display System

OEM Wiring Harness

Pilot House Instrument Panel

SAE No. 2 Flywheel and Flywheel Housing

Spare Parts Kit

Throttle Position Sensor

Transmission Alarm Contactor

Watercooled Exhaust Elbow

Vibration Isolators

Shown withAccessory Equipment

LEHM2104-01

3126B MARINE PROPULSION — 186 bkW (250 bhp)

PERFORMANCE CURVES

A Rating — DM7370-00 IMO Compliant

BS

FC

g/k

W-h

rE

ng

ine

Po

wer

kWT

orq

ue

N•m

Engine Speed - rpm

1100 1300 1500 1700 1900 2100 2300 2500

300

225

150

75

1300

900

500

100

262

246

230

214

BS

FC

lb/h

p-h

rE

ng

ine

Po

wer

hp

To

rqu

elb

ft

Engine Speed - rpm

1100 1300 1500 1700 1900 2100 2300 2500

400

300

200

100

1000

700

400

100

.431

.405

.379

.353

Metric Maximum PowerProp Demand 186 kW English Maximum Power

Prop Demand 250 hp

Performance Data Performance Data

EngineSpeed

rpm

EnginePower

kW

EngineTorque

N•mBSFC

g/kW-hr

FuelRateL/hr

MaximumPower

Data

EngineSpeed

rpm

EnginePower

hp

EngineTorque

lb ftBSFC

lb/hp-hr

FuelRategph

MaximumPower

Data 2400 186 742 220.0 48.9 2400 250 547 .362 12.9 2200 186 809 216.0 47.9 2200 250 597 .355 12.7 2000 186 890 214.0 47.5 2000 250 656 .352 12.5 1800 186 986 215.0 47.5 1800 249 727 .353 12.5 1600 162 966 218.0 42.0 1600 217 712 .358 11.1 1400 134 911 223.0 35.5 1400 179 672 .367 9.4 1200 104 827 232.0 28.7 1200 139 610 .381 7.6 1000 75 718 242.0 21.7 1000 101 530 .398 5.7

PropDemand

Data

PropDemand

Data 2400 186 742 220.0 48.9 2400 250 547 .362 12.9 2200 144 623 221.0 37.8 2200 193 459 .363 10.0 2000 108 515 223.0 28.6 2000 145 380 .367 7.6 1800 79 417 226.0 21.1 1800 105 308 .372 5.6 1600 55 330 232.0 15.3 1600 74 243 .381 4.0 1400 37 252 243.0 10.7 1400 50 186 .399 2.8 1200 23 185 254.0 7.1 1200 31 136 .418 1.9 1000 14 129 262.0 4.2 1000 18 95 .431 1.1

Cubic prop demand curve with 3.0 exponent for displacementhulls only.

Power produced at the flywheel will be within standardtolerances up to 50°C (122°F) combustion air temperaturemeasured at the air cleaner inlet, and fuel temperatureup to 52°C (125°F) measured at the fuel filter base. Power rated in accordance with NMMA procedure ascrankshaft power. Reduce crankshaft power by 3% forpropeller shaft power.

PD-DM7370-00.pdf Created on 12/17/2001 10:18 © 2001 Caterpillar All Rights Reserved

LEHM2104-01 2


A Rating –

Typical Application . . . For heavy-duty service invessels such as freighters, tugboats, bottomdrag twawlers, and deep river towboats wherethe engine is operated at rated load and speedup to 100% of the time without interruption orload cycling.Typical Hours Per Year . . . . . . . . . . . 5000 to 8000Time at Rated Speed. . . . . . . . . . . . . . . Up to 100%Load Factor . . . . . . . . . . . . . . . . . . . . . . . 80 to 100%Typical Time at Full Load . . . . . . . . . . . . . No limit

Engine Performance Parameters

Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3%Specific Fuel Consumption . . . . . . . . . . . . . . . +3%Fuel Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5%

Ratings are based on SAE J1228/ISO8665standard conditions of 100 kPa (29.61 in. Hg),25°C (77°F), and 30% relative humidity. Theseratings also apply at ISO3046/1, DIN6271/3, andBS5514 conditions of 100 kPa (29.61 in. Hg),27°C (81°F), and 60% relative humidity.

Fuel rates are based on fuel oil of 35° API [16°C (60°F)] gravity having an LHV of 42 780 kJ/kg (18,390 Btu/lb) when used at 29°C(85°F) and weighing 838.9 g/L (7.001 lb/U.S. gal).

Additional ratings may be available for specificcustomer requirements. Consult your Caterpillarrepresentative for additional information.

RATING DEFINITIONS AND CONDITIONS

DIMENSIONS*

mm in.

Overall Length 1580.7 62.2Length from front to rear face of block 1041.4 41.0Length from rear face of block to back of flywheel housing 136.0 5.4

Overall Height 917.1 36.1Height from crankshaft centerline to top of engine 629.3 24.8Height from crankshaft centerline to bottom of oil pan 287.8 11.3

Overall Width 889.9 35.0Width from crankshaft centerline to port side (left side) 389.1 15.3Width from crankshaft centerline to starboard side (right side) 500.8 19.7

Customer mounting hole diameter** 27.5 1.1Width from crankshaft centerline to side** 285.7 11.3Length from rear face of block to front** 716.3 28.2*Illustrations and dimensions from drawing: 175-7032**With optional front engine support

01 01 01

0303

0303

L W

H

Right Side Front

LEHM2104-01 3


TMI Reference No.: DM7370-00 (12-17-01)Materials and specifications are subject to change without notice. The International System of Units (SI) is used in this publication.

LEHM2104-01 (10-02) Printed in U.S.A. ©2002 CaterpillarAll rights reserved.

Performance data is calculated in accordance with tolerances and conditions stated in this specification sheet and is only intended for purposes ofcomparison with other manufacturers’ engines. Actual engine performance may vary according to the particular application of the engine andoperating conditions beyond Caterpillar’s control.


SPECIFICATIONS






3126B

205 bkW (275 bhp) 279 mhp @ 2400 rpm

STANDARD EQUIPMENT

Air Inlet System


Charging System


Cooling System


Exhaust System




Fuel System


Lube System


Mounting System


Protection System


Starting System


General


ACCESSORY EQUIPMENT




Crankshaft Pulley

Cruise Kit


Dress-Up Kit

Dry Exhaust Elbow




Flexible Fuel Lines



Fuel Cooler



Manual Sump Pump


OEM Wiring Harness



Spare Parts Kit




Vibration Isolators


LEHM2105-01


PERFORMANCE CURVES

B Rating — DM7371-00 IMO Compliant

BS

FC

g/k

W-h

rE

ng

ine

Po

wer

kWT

orq

ue

N•m

Engine Speed - rpm

1100 1300 1500 1700 1900 2100 2300 2500

300

225

150

75

1400

1000

600

200

275

254

234

213

BS

FC

lb/h

p-h

rE

ng

ine

Po

wer

hp

To

rqu

elb

ft

Engine Speed - rpm

1100 1300 1500 1700 1900 2100 2300 2500

400

300

200

100

1200

800

400

0

.452

.418

.384

.350


Prop Demand 275 hp


EngineSpeed

rpm

EnginePower

kW

EngineTorque

N•mBSFC

g/kW-hr

FuelRateL/hr

MaximumPower

Data

EngineSpeed

rpm

EnginePower

hp

EngineTorque

lb ftBSFC

lb/hp-hr

FuelRategph

MaximumPower

Data 2400 205 816 217.0 53.1 2400 275 602 .357 14.0 2200 205 890 214.0 52.3 2200 275 656 .352 13.8 2000 205 979 213.0 52.0 2000 275 722 .350 13.7 1800 205 1088 214.0 52.4 1800 275 802 .352 13.8 1600 179 1067 219.0 46.7 1600 240 787 .360 12.3 1400 147 1005 227.0 39.9 1400 198 741 .373 10.5 1200 115 913 237.0 32.5 1200 154 673 .390 8.6 1000 83 793 250.0 24.8 1000 111 585 .411 6.6

PropDemand

Data

PropDemand

Data 2400 205 816 217.0 53.1 2400 275 602 .357 14.0 2200 158 685 217.0 40.9 2200 212 505 .357 10.8 2000 119 566 219.0 31.0 2000 159 417 .360 8.2 1800 87 459 223.0 23.0 1800 116 339 .367 6.1 1600 61 363 232.0 16.8 1600 81 268 .381 4.4 1400 41 278 256.0 12.4 1400 55 205 .421 3.3 1200 26 204 275.0 8.4 1200 34 150 .452 2.2 1000 15 142 263.0 4.6 1000 20 105 .432 1.2




LEHM2105-01 2


B Rating –

Typical Application . . . Vessels such as midwatertrawlers, purse seiners, crew and supply boats,ferries, and towboats where locks, sandbars, andcurves dictate frequent slowing, and engine loadand speed are constant with some cycling.Typical Hours Per Year . . . . . . . . . . . 3000 to 5000Time at Rated Speed . . . . . . . . . . . . . . . . Up to 80%Load Factor . . . . . . . . . . . . . . . . . . . . . . . . 40 to 80%Typical Time at Full Load . . . . 10 out of 12 hours







DIMENSIONS*

mm in.





01 01 01

0303

0303

L W

H

Right Side Front

LEHM2105-01 3


SPECIFICATIONS






3126B

235 bkW (315 bhp) 319 mhp @ 2400 rpm

STANDARD EQUIPMENT

Air Inlet System


Charging System


Cooling System


Exhaust System




Fuel System


Lube System


Mounting System


Protection System


Starting System


General


ACCESSORY EQUIPMENT




Crankshaft Pulley

Cruise Kit


Dress-Up Kit

Dry Exhaust Elbow




Flexible Fuel Lines



Fuel Cooler



Manual Sump Pump


OEM Wiring Harness



Spare Parts Kit




Vibration Isolators


LEHM2106-01


PERFORMANCE CURVES

C Rating — DM7372-00 IMO Compliant

BS

FC

g/k

W-h

rE

ng

ine

Po

wer

kWT

orq

ue

N•m

Engine Speed - rpm

1100 1300 1500 1700 1900 2100 2300 2500

300

225

150

75

1600

1100

600

100

273

254

235

216

BS

FC

lb/h

p-h

rE

ng

ine

Po

wer

hp

To

rqu

elb

ft

Engine Speed - rpm

1100 1300 1500 1700 1900 2100 2300 2500

500

300

100

-100

1300

900

500

100

.449

.418

.387

.356


Prop Demand 315 hp


EngineSpeed

rpm

EnginePower

kW

EngineTorque

N•mBSFC

g/kW-hr

FuelRateL/hr

MaximumPower

Data

EngineSpeed

rpm

EnginePower

hp

EngineTorque

lb ftBSFC

lb/hp-hr

FuelRategph

MaximumPower

Data 2400 235 934 230.0 64.4 2400 315 689 .378 17.0 2200 235 1019 222.0 62.2 2200 315 752 .365 16.4 2000 235 1121 217.0 60.8 2000 315 827 .357 16.1 1800 235 1246 216.0 60.6 1800 315 919 .355 16.0 1600 204 1220 220.0 53.6 1600 274 900 .362 14.2 1400 169 1150 229.0 45.9 1400 226 848 .376 12.1 1200 131 1044 242.0 37.9 1200 176 770 .398 10.0 1000 95 906 263.0 29.7 1000 127 668 .432 7.8

PropDemand

Data

PropDemand

Data 2400 235 934 230.0 64.4 2400 315 689 .378 17.0 2200 181 785 219.0 47.3 2200 243 579 .360 12.5 2000 136 649 218.0 35.3 2000 182 479 .358 9.3 1800 99 526 223.0 26.4 1800 133 388 .367 7.0 1600 70 415 231.0 19.2 1600 93 306 .380 5.1 1400 47 318 242.0 13.4 1400 62 235 .398 3.5 1200 29 234 255.0 8.9 1200 39 173 .419 2.4 1000 17 162 273.0 5.5 1000 23 119 .449 1.5




LEHM2106-01 2


C Rating –

Typical Application . . . Vessels such as ferries,harbor tugs, fishing boats moving at higherspeeds out and back (e.g. lobster, crayfish,and tuna), offshore service boats, and alsodisplacement hull yachts and short trip coastalfreighters where engine load and speed arecyclical.Typical Hours Per Year . . . . . . . . . . . 2000 to 4000Time at Rated Speed . . . . . . . . . . . . . . . . Up to 50%Load Factor . . . . . . . . . . . . . . . . . . . . . . . . 20 to 80%Typical Time at Full Load . . . . . 6 out of 12 hours







DIMENSIONS*

mm in.





01 01 01

0303

0303

L W

H

Right Side Front

LEHM2106-01 3

Image is a representationonly, and may not show

optional attachments.

SPECIFICATIONSI-6, 4-Stroke-Cycle-Diesel

Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . IMO compliantDisplacement . . . . . . . . . . . . . . . . . . . . . . . 7.2 L (442 cu. in.)Rated Engine Speed. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2600Bore. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 mm (4.33 in.)Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 mm (5.0 in.)Aspiration . . . . . . . . . . . . . . . . . . Turbocharged-AftercooledGovernor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ElectronicCooling System . . . . . . . . . . . . . . . . . . . . . . Heat ExchangerWeight, Net Dry (approx). . . . . . . . . . . . . . 811 kg (1,788 lb)Refill Capacity

Cooling System . . . . . . . . . . . . . . . . . . . 39 L (10.3 gal)Lube Oil System . . . . . . . . . . . . . . . . . . . . 25 L (6.6 gal)

Oil Change Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 hrCaterpillar Diesel Engine Oil 10W30 or 15W40

Rotation (from flywheel end) . . . . . . . . . . CounterclockwiseFlywheel and flywheel housing . . . . . . . . . . . . . . SAE No. 3Flywheel Teeth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Air Inlet SystemSea water aftercooler, 12V air inlet heater, air cleanerwith fumes disposal (closed system)

Charging System12V 51 amp belt-driven charging alternator and mounting

Cooling SystemGear-driven auxiliary sea water pump, belt-drivencentrifugal jacket water pump, auxiliary sea water lines,expansion tank, transmission oil cooler, engine-mountedheat exchanger with removable tube bundle andreplaceable copper-nickel tubes, thermostat and housing

Exhaust SystemWatercooled exhaust manifold and turbocharger, fumesdisposal routed to turbocharger inlet

Fuel SystemHydraulically actuated, Electronically controlled UnitInjector (HEUI), fuel transfer pump, fuel priming pump,fuel filter — RH or LH service

Lube SystemCrankcase breather, oil filter — front center service, oillevel gauge — RH or LH service, oil filler — RH or LHservice, oil pan drain — RH or LH service, gear-drivenengine oil pump

Mounting SystemFront mount is not included. (Do not use shipping mountsin permanent installation.)

Protection SystemElectronic overspeed shutoff

Starting System12V rear-facing electric starting motor

GeneralVibration damper and guard, Caterpillar yellow paint,lifting eyes

3126BMARINE PROPULSION

375 mhp(370 bhp)276 bkW

STANDARD ENGINE EQUIPMENT

LEHM2743-00

3126B MARINE PROPULSION375 mhp (370 bhp) 276 bkW

LEHM2743-00 2

MARINE ENGINE PERFORMANCE

D — Patrol — DM7398-00 IMO Compliant

BS

FC

g/k

W-h

rE

ng

ine

Po

wer

kWT

orq

ue

N•m

Engine Speed - rpm

1100 1300 1500 1700 1900 2100 2300 2500 2700

276

189

103

16

1550

1083

617

150

284

262

241

219B

SF

Clb

/hp

-hr

En

gin

e P

ow

erh

pT

orq

ue

lb f

t

Engine Speed - rpm

1100 1300 1500 1700 1900 2100 2300 2500 2700

370

254

137

21

1143

799

455

111

.467

.431

.395

.359


Prop Demand 370 hp


EngineSpeed

rpm

EnginePower

kW

EngineTorque

N•mBSFC

g/kW-hr

FuelRateL/hr

MaximumPower

Data

EngineSpeed

rpm

EnginePower

hp

EngineTorque

lb ftBSFC

lb/hp-hr

FuelRategph

MaximumPower

Data

2600 276 1014 236.0 77.5 2600 370 748 .388 20.5 2400 276 1098 229.0 75.4 2400 370 810 .376 19.9 2200 276 1198 223.0 73.5 2200 370 884 .367 19.4 2000 276 1318 219.0 72.0 2000 370 972 .360 19.0 1800 276 1464 221.0 72.8 1800 370 1080 .363 19.2 1600 233 1388 232.0 64.4 1600 312 1024 .381 17.0 1400 145 990 239.0 41.3 1400 195 730 .393 10.9 1000 69 662 255.0 21.0 1000 93 488 .419 5.5

PropDemand

Data

PropDemand

Data

2600 276 1014 236.0 77.5 2600 370 748 .388 20.5 2400 217 864 231.0 59.8 2400 291 637 .380 15.8 2200 167 726 223.0 44.4 2200 224 535 .367 11.7 2000 126 600 220.0 32.9 2000 168 443 .362 8.7 1800 92 486 228.0 24.9 1800 123 358 .375 6.6 1600 64 384 238.0 18.3 1600 86 283 .391 4.8 1400 43 294 253.0 13.0 1400 58 217 .416 3.4 1000 16 150 284.0 5.3 1000 21 111 .467 1.4




LEHM2743-00 3

Right Side Front

01 01 01

0303

0303

L W

H


DIMENSIONS

Engine Dimensions

Length 1581 mm 62.2 in

Width 928 mm 36.5 in

Height 920 mm 36.2 in

Weight, Net Dry (approx) 811 kg 1,788 lb

Note: Do not use for installation design. See general dimensiondrawings for detail (Drawing #215-8277).

Performance No.: DM7398-00Feature Code: 126DM44, 126DM45 ©2002 CaterpillarU.S. Sourced All rights reserved.LEHM2743-00 (9-02) Materials and specifications are subject to change without notice.

The International System of Units (SI) is used in this publication.

Performance data is calculated in accordance with tolerances and conditions stated in this specification sheet and is only intended for purposes ofcomparison with other manufacturers’ engines. Actual engine performance may vary according to the particular application of the engine and operatingconditions beyond Caterpillar’s control.

Power produced at the flywheel will be within standard tolerances up to 50°C (122°F) combustion air temperature measured at the air cleaner inlet, and fueltemperature up to 52°C (125°F) measured at the fuel filter base. Power rated in accordance with NMMA procedure as crankshaft power. Reduce crankshaftpower by 3% for propeller shaft power.

RATING DEFINITIONS AND CONDITIONSD Rating (Patrol Craft)

% Load Factor: up to 50% Time at Rated RPM: up to 16Typical Time at Full Load: 2 hours out of 12Typical Hour/Year: 1000 to 3000Typical Applications: Planing hull vessels such as off-shore patrol boats, customs, police, and some fire boats.Also used for bow and stern thrusters.

Rated Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2300 rpmMaximum Cruise Speed . . . . . . . . . . . . . . . . . . . . . 2100 rpmMaximum Continuous Cruise Speed . . . . . . . . . . . 1900 rpm

Power at declared engine speed is in accordance withISO8665. Caterpillar maintains ISO9000 approvedengine test facilities to assure accurate calibration of testequipment. Electronically controlled engines are set atthe factory at the advertised power corrected to standardambient conditions. The published fuel consumptionrates are in accordance with ISO3046-1.

Fuel rates are based on fuel oil of 35° API [16°C (60°F)]gravity having an LHV of 42 780 kJ/kg (18,390 Btu/lb)when used at 29°C (85°F) and weighing 838.9 g/L (7.001 lb/U.S. gal). Additional ratings may be availablefor specific customer requirements. Consult yourCaterpillar representative for additional information.


Power produced at the flywheel will be within standard tolerances up to 50° C (122° F)combustion air temperature measured at the air cleaner inlet, and fuel temperature up to52° C (125° F) measured at the fuel filter base. Power rated in accordance with NMMAprocedure as crankshaft power. Reduce crankshaft power by 3% for propeller shaft power.

SPECIFICATIONS


Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . IMO compliant

Bore— mm (in). . . . . . . . . . . . . . . . . . . . . . . . . . . 110 (4.33)Stroke—mm (in) . . . . . . . . . . . . . . . . . . . . . . . . . . 127 (5.0)Displacement—L (cu in). . . . . . . . . . . . . . . . . . . . 7.2 (439)Rotation (from flywheel end). . . . . . . CounterclockwiseCompression Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.5:1Capacity for Liquids—L (U.S. gal)

Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . 39 (10.3)Lube Oil System (refill) . . . . . . . . . . . . . . . . . . . 25 (6.6)

Oil Change Interval — hrs . . . . . . . . . . . . . . . . . . . . . . 200Caterpillar DEO 10W30 or 15W40

Engine Weight, Net Dry (approx) — kg (lb) . . . . . . . . . . . . . . . . . . . . . 809 (1,782)



Air Inlet System

air cleaner with closed crankcase fumes disposalsystem

Charging System

belt-driven charging alternator and mounting (12volt, 51 ampere)

Control System

electronic governor with Electronic Control Module(ECM), throttle position sensor, engine-mounted40-pin dedicated customer connector, SAE J1939data link

Cooling System

sea water aftercooler with condensate drain valve,gear-driven auxiliary sea water pump and auxiliarysea water lines, engine-mounted heat exchangerwith removable copper-nickel tube bundle,expansion tank, thermostat and housing, engine oilcooler, transmission oil cooler

Exhaust System

watercooled exhaust manifold and turbocharger,fumes disposal routed to turbocharger inlet


SAE No. 3 flywheel (126 teeth) and SAE No. 3flywheel housing

Fuel System

Hydraulically actuated Electronically controlled UnitInjector (HEUI) fuel system, LH or RH service fuelfilter, fuel transfer pump

Lube System

top mounted crankcase breather, front centerservice oil filter, LH or RH service oil filler and oillevel gauge, oil pan, LH or RH service oil pan drain,gear-driven oil pump

Protection System

electronic overspeed protection

Starting System

rear-facing electric starting motor (12V), air inletheater

General

torsional vibration damper, lifting eyes

MarineEngine 3126B

313 bkW @ 2800 rpm420 bhp @ 2800 rpm

3126B MARINE ENGINE – 313 bkW (420 bhp)

PERFORMANCE CURVES

E Rating — DM6177-00 IMO Compliant

1200 1600 2000 2400 2800 3200Engine Speed - rpm

0

50

100

150

200

250

300

350

Po

wer

- b

kW

Fu

el R

ate

L/h

r

1200 1600 2000 2400 2800 3200Engine Speed - rpm

0

100

200

300

400

500

Po

wer

- b

hp

Fu

el R

ate

- g

/hr

313 bkW 420 bhpSI Metric English

Performance Data

EngineSpeed

rpm

EnginePowerbkW

BSFCg/

bkW-h

FuelRateL/h

BoostPresskPa

Gauge

IntakeAir

Flowm /min3

ExhManifTemp

Co

ExhGasFlow

m /min3

Performance Data

EngineSpeed

rpm

EnginePower

bhp

BSFClb/

bhp-h

FuelRategph

BoostPressin.Hg.Gauge

IntakeAir

Flowcfm

ExhManifTemp

Fo

ExhGasFlowcfm

ZoneLimitCurve: 4

280026002400220020001800160014001200

313.0313.0313.0313.0280.7201.3139.4112.593.0

235234227220214213220244285

87.887.284.882.271.651.036.632.831.6

264.8268.9274.4265.2226.7127.760.538.328.3

28.026.725.523.119.212.17.45.44.2

618634627634650650650650646

62.061.357.854.045.830.419.514.611.3

ZoneLimitCurve: 4

280026002400220020001800160014001200

420420420420376270187151125

.387

.384

.374

.362

.352

.350

.362

.402

.468

23.223.022.421.718.913.59.78.78.3

78.479.681.378.567.137.817.911.38.4

989943901816678427261191148

114511731161117312021202120312021194

219021652041190716171074689516399

MaxLugCurve: M

280026002400220020001800160014001200

313.0313.0313.0313.0295.4255.0187.3130.993.0

235234227221215213222246285

87.887.184.882.375.664.949.538.431.6

264.8268.9274.4265.2243.8188.1104.250.828.3

28.026.725.523.120.215.69.66.04.2

618634627634662688728713646

62.061.357.854.048.639.726.717.011.3

MaxLugCurve: M

280026002400220020001800160014001200

420420420420396342251176125

.387

.384

.374

.363

.353

.351

.364

.404

.468

23.223.022.421.720.017.113.110.18.3

78.479.681.378.572.255.730.915.08.4

989943901816713551339212148

114511731161117312241271134213151194

219021652041190717161402943600399

PropDemandCurve: P

280026002400220020001800160014001200

313.0250.6197.1151.8114.183.258.439.124.6

235222217218226236248262282

87.866.350.939.530.723.417.212.28.3

264.8212.4151.397.357.231.516.98.23.2

28.022.817.212.59.16.75.24.13.3

618533499488474440385322261

62.047.235.426.319.313.910.17.45.4

PropDemandCurve: P

280026002400220020001800160014001200

420336264204153112785233

.387

.365

.356

.359

.371

.387

.407

.431

.464

23.217.513.410.48.16.24.53.22.2

78.462.944.828.816.99.35.02.40.9

989805607441321237184145117

1145991931910885824725611503

219016671250929682491357261191

20

30

40

50

60

70

80

87.8

6

8

10

12

14

16

18

20

23.2

M

P

4

M

P

4

.....................................................................................Brake Mean Effective Pressure 1852 kPa .....................................................................................Brake Mean Effective Pressure 269 psi


E RATING – Planing hull vessels such aspleasure craft, harbor patrol, harbor master, andsome fishing and pilot boats.

RATINGS are based on SAE J1228/ISO8665standard conditions of 100 kPa (29.61 in Hg),25° C (77° F), and 30% relative humidity. Theseratings also apply at ISO3046/1, DIN6271/3, andBS5514 conditions of 100 kPa (29.61 in Hg), 27° C(81° F), and 60% relative humidity. Ratings arevalid for air cleaner inlet temperatures up to andincluding 50° C (122° F) and for sea watertemperatures up to and including 42° C (108° F)at sea level.

FUEL RATES are based on fuel oil of 35° API [16° C (60° F)] gravity having an LHV of 42 780 kJ/kg (18,390 Btu/lb) when used at29° C (85° F) and weighing 838.9 g/liter(7.001 lbs/U.S. gal). Fuel consumption shownwith all oil, fuel, and water pumps, enginedriven. For a “without pumps” condition, deductapproximately 0.5% for each pump not enginedriven.


RATING DEFINITIONS AND CONDITIONSDIMENSIONS

917.1 mm

36.1 in

889.9 mm

35.0 in

1177.4 mm

46.4 in

1580.7 mm

62.2 in


TMI Reference No.: DM6177-00Materials and specifications are subject to change without notice. The International System of Units (SI) is used in this publication.

LEHM0598 (8-00) Printed in U.S.A. © 2000 CaterpillarAll rights reserved.

Performance data is calculated in accordance with tolerances and conditions stated in this specification sheet and is only intended for purposesof comparison with other manufacturers’ engines. Actual engine performance may vary according to the particular application of the engine andoperating conditions beyond Caterpillar’s control.


SPECIFICATIONS


Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . IMO compliantDisplacement . . . . . . . . . . . . . . . . . . . . . 7.2 L (442 cu. in.)Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 mm (4.33 in.)Stroke. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 mm (5.0 in.)Aspiration. . . . . . . . . . . . . . . . Turbocharged-AftercooledGovernor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ElectronicEngine Weight, Net Dry (approx). . . . . 809 kg (1782 lb)Capacity for Liquids




3126B

313 bkW (420 bhp) 426 mhp @ 2800 rpm

STANDARD EQUIPMENT

Air Inlet System


Charging System


Cooling System


Exhaust System




Fuel System


Lube System


Mounting System


Protection System


Starting System


General


ACCESSORY EQUIPMENT




Crankshaft Pulley

Cruise Kit


Dress-Up Kit




Flexible Fuel Lines



Fuel Cooler



Manual Sump Pump


OEM Wiring Harness



Spare Parts Kit




Vibration Isolators



PERFORMANCE CURVES


BS

FC

g/k

W-h

rE

ng

ine

Po

wer

kWT

orq

ue

N•m

Engine Speed - rpm

1300 1500 1700 1900 2100 2300 2500 2700 2900

500

300

100

-100

1800

1300

800

300

285

261

237

213

BS

FC

lb/h

p-h

rE

ng

ine

Po

wer

hp

To

rqu

elb

ft

Engine Speed - rpm

1300 1500 1700 1900 2100 2300 2500 2700 2900

600

450

300

150

1400

1000

600

200

.469

.429

.389

.349


Prop Demand 420 hp


EngineSpeed

rpm

EnginePower

kW

EngineTorque

N•mBSFC

g/kW-hr

FuelRateL/hr

MaximumPower

Data

EngineSpeed

rpm

EnginePower

hp

EngineTorque

lb ftBSFC

lb/hp-hr

FuelRategph

MaximumPower

Data 2800 313 1067 235.0 87.8 2800 420 787 .386 23.2 2600 313 1150 234.0 87.1 2600 420 848 .385 23.0 2400 313 1245 227.0 84.8 2400 420 918 .373 22.4 2200 313 1359 221.0 82.3 2200 420 1002 .363 21.7 2000 295 1410 215.0 75.6 2000 396 1040 .353 20.0 1800 255 1353 213.0 64.9 1800 342 998 .350 17.1 1600 187 1118 222.0 49.5 1600 251 825 .365 13.1 1400 131 893 246.0 38.4 1400 176 659 .404 10.1 1200 93 740 285.0 31.6 1200 125 546 .469 8.3

PropDemand

Data

PropDemand

Data 2800 313 1067 235.0 87.8 2800 420 787 .386 23.2 2600 251 920 222.0 66.3 2600 336 679 .365 17.5 2400 197 784 217.0 50.9 2400 264 578 .357 13.4 2200 152 659 218.0 39.5 2200 204 486 .358 10.4 2000 114 545 226.0 30.7 2000 153 402 .372 8.1 1800 83 441 236.0 23.4 1800 112 325 .388 6.2 1600 58 349 248.0 17.2 1600 78 257 .408 4.5 1400 39 267 262.0 12.2 1400 52 197 .431 3.2 1200 25 196 282.0 8.3 1200 33 145 .464 2.2





E Rating –

Typical Application . . . Planing hull vessels suchas pleasure craft, harbor patrol, harbor master,and some fishing and pilot boats.Typical Hours Per Year . . . . . . . . . . . . 250 to 1000Time at Rated Speed . . . . . . . . . . . . . . . . . Up to 8%Load Factor . . . . . . . . . . . . . . . . . . . . . . . . Up to 30%Typical Time at Full Load . . . . 1/2 out of 6 hours

Rated Speed . . . . . . . . . . . . . . . . . . . . . . . . 2800 rpmMaximum Cruise Speed. . . . . . . . . . . . . . . 2600 rpmMaximum Continuous Cruise Speed. . . . 2400 rpm







DIMENSIONS*

mm in.





01 01 01

0303

0303

L W

H

Right Side Front

Power produced at the flywheel will be within standard tolerances up to 50° C (122° F)combustion air temperature measured at the air cleaner inlet, and fuel temperature up to52° C (125° F) measured at the fuel filter base. Power rated in accordance with NMMAprocedure as crankshaft power. Reduce crankshaft power by 3% for propeller shaft power.

SPECIFICATIONS


Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . IMO compliant

Bore— mm (in). . . . . . . . . . . . . . . . . . . . . . . . . . . 110 (4.33)Stroke—mm (in) . . . . . . . . . . . . . . . . . . . . . . . . . . 127 (5.0)Displacement—L (cu in). . . . . . . . . . . . . . . . . . . . 7.2 (439)Rotation (from flywheel end). . . . . . . CounterclockwiseCompression Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.5:1Capacity for Liquids—L (U.S. gal)

Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . 39 (10.3)Lube Oil System (refill) . . . . . . . . . . . . . . . . . . . 25 (6.6)

Oil Change Interval — hrs . . . . . . . . . . . . . . . . . . . . . . 200Caterpillar DEO 10W30 or 15W40

Engine Weight, Net Dry (approx) — kg (lb) . . . . . . . . . . . . . . . . . . . . . 809 (1,782)



Air Inlet System

air cleaner with closed crankcase fumes disposalsystem

Charging System

belt-driven charging alternator and mounting (12volt, 51 ampere)

Control System

electronic governor with Electronic Control Module(ECM), throttle position sensor, engine-mounted40-pin dedicated customer connector, SAE J1939data link

Cooling System

sea water aftercooler with condensate drain valve,gear-driven auxiliary sea water pump and auxiliarysea water lines, engine-mounted heat exchangerwith removable copper-nickel tube bundle,expansion tank, thermostat and housing, engine oilcooler, transmission oil cooler

Exhaust System

watercooled exhaust manifold and turbocharger,fumes disposal routed to turbocharger inlet


SAE No. 3 flywheel (126 teeth) and SAE No. 3flywheel housing

Fuel System

Hydraulically actuated Electronically controlled UnitInjector (HEUI) fuel system, LH or RH service fuelfilter, fuel transfer pump

Lube System

top mounted crankcase breather, front centerservice oil filter, LH or RH service oil filler and oillevel gauge, oil pan, LH or RH service oil pan drain,gear-driven oil pump

Protection System

electronic overspeed protection

Starting System

rear-facing electric starting motor (12V), air inletheater

General

torsional vibration damper, lifting eyes

MarineEngine 3126B

336 bkW @ 2800 rpm450 bhp @ 2800 rpm


PERFORMANCE CURVES


1200 1600 2000 2400 2800 3200Engine Speed - rpm

0

50

100

150

200

250

300

350

400

Po

wer

- b

kW

Fu

el R

ate

L/h

r

1200 1600 2000 2400 2800 3200Engine Speed - rpm

0

100

200

300

400

500

Po

wer

- b

hp

Fu

el R

ate

- g

/hr

336 bkW 450 bhpSI Metric English

Performance Data

EngineSpeed

rpm

EnginePowerbkW

BSFCg/

bkW-h

FuelRateL/h

BoostPresskPa

Gauge

IntakeAir

Flowm /min3

ExhManifTemp

Co

ExhGasFlow

m /min3

Performance Data

EngineSpeed

rpm

EnginePower

bhp

BSFClb/

bhp-h

FuelRategph

BoostPressin.Hg.Gauge

IntakeAir

Flowcfm

ExhManifTemp

Fo

ExhGasFlowcfm

ZoneLimitCurve: 4

280026002400220020001800160014001200

335.5328.4323.5314.4287.5201.0138.4114.993.0

235231226221216213222254309

94.090.487.182.773.951.136.734.734.2

267.1270.5269.6260.6235.7130.363.241.728.2

27.526.224.522.319.111.97.35.44.0

639636639642644646644643605

63.560.657.152.845.629.519.014.410.5

ZoneLimitCurve: 4

280026002400220020001800160014001200

450440434422386270186154125

.386

.380

.372

.363

.354

.351

.365

.417

.507

24.823.923.021.819.513.59.79.29.0

79.180.179.877.269.838.618.712.38.4

971925865788675420258191141

118311771182118711921195119011891120

224221402016186516101042671509371

MaxLugCurve: M

280026002400220020001800160014001200

335.5335.5333.8323.9295.5255.2187.3130.993.0

235232227222217215223254309

94.092.890.385.676.365.349.839.634.2

267.1274.3275.9267.8244.8192.4108.052.728.2

27.526.424.922.719.615.29.45.84.0

639650655653652682715688605

63.562.159.154.647.038.525.916.410.5

MaxLugCurve: M

280026002400220020001800160014001200

450450448434396342251176125

.386

.382

.373

.364

.356

.353

.366

.417

.507

24.824.523.922.620.217.313.210.59.0

79.181.281.779.372.557.032.015.68.4

971932879802692537332205141

118312021212120812051259131912701120

224221932087192816601360915579371

PropDemandCurve: P

280026002400220020001800160014001200

335.5268.6211.3162.7122.389.162.641.926.4

235223217218224231239258294

94.071.354.642.332.624.517.912.99.2

267.1230.8171.0111.665.936.318.88.73.1

27.523.618.213.29.36.85.24.03.2

639539501487479456410346280

63.549.137.027.319.914.410.47.55.5

PropDemandCurve: P

280026002400220020001800160014001200

450360283218164119845635

.386

.366

.357

.359

.368

.379

.394

.424

.483

24.818.814.411.28.66.54.73.42.4

79.168.350.633.019.510.75.62.60.9

971833643466328240184141113

11831002933909895853770655537

224217341307964703509367265194

20

30

40

50

60

70

80

94.0

6

8

10

12

14

16

18

20

22

24.8

M

P

4

M

P

4

.....................................................................................Brake Mean Effective Pressure 1972 kPa .....................................................................................Brake Mean Effective Pressure 286 psi


E RATING – Planing hull vessels such aspleasure craft, harbor patrol, harbor master, andsome fishing and pilot boats.

RATINGS are based on SAE J1228/ISO8665standard conditions of 100 kPa (29.61 in Hg),25° C (77° F), and 30% relative humidity. Theseratings also apply at ISO3046/1, DIN6271/3, andBS5514 conditions of 100 kPa (29.61 in Hg), 27° C(81° F), and 60% relative humidity. Ratings arevalid for air cleaner inlet temperatures up to andincluding 50° C (122° F) and for sea watertemperatures up to and including 42° C (108° F)at sea level.

FUEL RATES are based on fuel oil of 35° API [16° C (60° F)] gravity having an LHV of 42 780 kJ/kg (18,390 Btu/lb) when used at29° C (85° F) and weighing 838.9 g/liter(7.001 lbs/U.S. gal). Fuel consumption shownwith all oil, fuel, and water pumps, enginedriven. For a “without pumps” condition, deductapproximately 0.5% for each pump not enginedriven.


RATING DEFINITIONS AND CONDITIONSDIMENSIONS

917.1 mm

36.1 in

889.9 mm

35.0 in

1177.4 mm

46.4 in

1580.7 mm

62.2 in


TMI Reference No.: DM6181-00Materials and specifications are subject to change without notice. The International System of Units (SI) is used in this publication.

LEHM0597 (8-00) Printed in U.S.A. © 2000 CaterpillarAll rights reserved.

Performance data is calculated in accordance with tolerances and conditions stated in this specification sheet and is only intended for purposesof comparison with other manufacturers’ engines. Actual engine performance may vary according to the particular application of the engine andoperating conditions beyond Caterpillar’s control.


SPECIFICATIONS






3126B

456 mhp (450 bhp) 336 bkW @ 2800 rpm

STANDARD EQUIPMENT

Air Inlet System


Charging System


Cooling System


Exhaust System




Fuel System


Lube System


Mounting System


Protection System


Starting System


General


ACCESSORY EQUIPMENT




Crankshaft Pulley

Cruise Kit


Dress-Up Kit




Flexible Fuel Lines



Fuel Cooler



Manual Sump Pump


OEM Wiring Harness



Spare Parts Kit




Vibration Isolators


Page 1 of 4 LEHM1510-02

3126B MARINE PROPULSION — 456 mhp (450 bhp) 336 bkW

PERFORMANCE CURVES


BS

FC

g/k

W-h

rE

ng

ine

Po

wer

kWT

orq

ue

N•m

Engine Speed - rpm

1300 1500 1700 1900 2100 2300 2500 2700 2900

500

300

100

-100

1800

1300

800

300

309

278

246

215

BS

FC

lb/h

p-h

rE

ng

ine

Po

wer

hp

To

rqu

elb

ft

Engine Speed - rpm

1300 1500 1700 1900 2100 2300 2500 2700 2900

600

450

300

150

1400

1000

600

200

.508

.456

.404

.352


Prop Demand 450 hp


EngineSpeed

rpm

EnginePower

kW

EngineTorque

N•mBSFC

g/kW-hr

FuelRateL/hr

MaximumPower

Data

EngineSpeed

rpm

EnginePower

hp

EngineTorque

lb ftBSFC

lb/hp-hr

FuelRategph

MaximumPower

Data 2800 336 1144 235.0 94.0 2800 450 844 .386 24.8 2600 336 1232 232.0 92.8 2600 450 909 .381 24.5 2400 334 1328 227.0 90.3 2400 448 979 .373 23.9 2200 324 1406 222.0 85.6 2200 434 1037 .365 22.6 2000 296 1411 217.0 76.3 2000 396 1041 .357 20.2 1800 255 1354 215.0 65.3 1800 342 999 .353 17.3 1600 187 1118 223.0 49.8 1600 251 825 .367 13.2 1400 131 893 254.0 39.6 1400 176 659 .418 10.5 1200 93 740 309.0 34.2 1200 125 546 .508 9.0

PropDemand

Data

PropDemand

Data 2800 336 1144 235.0 94.0 2800 450 844 .386 24.8 2600 269 987 223.0 71.3 2600 360 728 .367 18.8 2400 211 841 217.0 54.6 2400 283 620 .357 14.4 2200 163 706 218.0 42.3 2200 218 521 .358 11.2 2000 122 584 224.0 32.6 2000 164 431 .368 8.6 1800 89 473 231.0 24.5 1800 119 349 .380 6.5 1600 63 374 239.0 17.9 1600 84 276 .393 4.7 1400 42 286 258.0 12.9 1400 56 211 .424 3.4 1200 26 210 294.0 9.2 1200 35 155 .483 2.4






E Rating –

Typical Application . . . Planing hull vessels suchas pleasure craft, harbor patrol, harbor master,and some fishing and pilot boats.Typical Hours Per Year . . . . . . . . . . . . 250 to 1000Time at Rated Speed . . . . . . . . . . . . . . . . . Up to 8%Load Factor . . . . . . . . . . . . . . . . . . . . . . . . Up to 30%Typical Time at Full Load . . . . 1/2 out of 6 hours

Rated Speed . . . . . . . . . . . . . . . . . . . . . . . . 2800 rpmMaximum Cruise Speed. . . . . . . . . . . . . . . 2600 rpmMaximum Continuous Cruise Speed. . . . 2400 rpm







DIMENSIONS*

mm in.





01 01 01

0303

0303

L W

H

Right Side Front


propulsion 3126b engine - cat | cummins | detroit diesel · pdf filecaterpillar deo 10w30 or...

Documents