461

MarineEngine

3508BMain Propulsion

High Performance

CATERPILLAR® ENGINE SPECIFICATIONS

V-8, 4-Stroke-Cycle DieselBore — (mm) in . . . . . . . . . . . . . . . . . . . . . . . . 170 (6.7)Stroke — (mm) in. . . . . . . . . . . . . . . . . . . . . . . 190 (7.5)Displacement — (L) cu in. . . . . . . . . . . . 34.5 (2105)Rotation (from flywheel end) . . . . . . . . . ccw or cwCompression Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . 14:1Capacity for Liquids — (L) U.S. gal

Cooling System (engine only). . . . . . 102.7 (55)Lube Oil System (refill) . . . . . . . . . . . . . 102.0 (50)

Oil Change Interval — hrs . . . . . . . . . . . . . . . . . . 250Engine Weight, Net Dry

(approx) — (kg) lb . . . . . . . . . . . . . . 4623 (10 182)

1119 bkW/1500 bhp/1521 mhp @ 1925 rpm1044 bkW/1400 bhp/1420 mhp @ 1880 rpm970 bkW/1300 bhp/1318 mhp @ 1835 rpm895 bkW/1200 bhp/1217 mhp @ 1785 rpm

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

Air Inlet SystemAir cleaners, light duty, not installedAftercooler core, copper-nickel tubes,

copper fins, for sea water/airenvironment

Turbocharger, water-cooled bearinghousings, 152 mm (6 in) OD straightconnection

Control SystemDual Caterpillar ADEM II electronic

engine control modules withelectronically controlled unitinjectors

Cooling SystemAir separator (deaerator), shipped looseAuxiliary sea water pump, self-primingCoolant shunt tank, not installedJacket water pump, gear driven,

centrifugalOil coolerThermostats and housing, full open

temperature 92° C (198° F)Exhaust SystemDry gas tight manifold with thermo-

laminated heat shieldsDual turbocharger with watercooled

bearing housing and thermo-laminated heat shields

Exhaust outlet, vertical, 292 mm(11.5 in) ID round flanged outlet

Flywheels and Flywheel HousingsFlywheel housing, SAE no. 00Flywheel, SAE no. 00, 183 teethFuel SystemElectronically controlled unit injectorsFuel filters, dual spin-on, with service

indicators, front mountedFuel transfer pump

InstrumentationElectronic instrument panel

analog gauges for: oil and fuelpressure, oil and fuel filterdifferential, system DC voltage,exhaust and water temperature,fuel pressure, air inlet restriction

digital display for: tachometer,hours, fuel consumption — totaland instantaneous

Lube SystemCrankcase breather, top mountedOil filler and dipstick, RHOil filter, four spin-on, front mountedOil pump, gear typeOil pump, gear type, scavengeRear sump oil pan, aluminumMounting SystemFront trunnionRear pads on sides of flywheel

housingPower Take-OffsAccessory drive, front housing

standard rotation: lower RH, lowerLH; opposite rotation: upper andlower RH, lower LH

Front housing, two-sidedProtection SystemADEM II Electronic Monitoring System

with customer programmablealarm, shutdown, and derationstrategies

Emergency stop pushbuttonGeneralLifting eyes, front and rearPaint, Caterpillar yellowVibration damper and guard

Air pressure regulatorAir starting motorCharging alternator, 24 volt 60 amp,

RH mountedCoolant shunt tank removalCrankcase explosion relief valvesDeep sump oil pan for 400-hour oil

changeDual 24 volt electric starter motorsDuplex fuel and oil filtersEmergency oil connections, requires

deep sump oil panExhaust expander and flange, 305 to

406 mmFlexible exhaust fitting, 292 mm dia x

305 mm long Flexible fuel linesHorizontal exhaust outlet, 292 mm diaMounting feet, for rigid mounting on

parallel engine bedsPilot house instrument panelPyrometer and thermocouples,

individual cylinder exh. temps.Shell and tube-type heat exchangerSound isolation mounts, for military/

passenger serviceSump pump24-volt electric prelube pumpWater level switch gauge

STANDARD EQUIPMENT ACCESSORY EQUIPMENT

3508B MARINE – HIGH PERFORMANCE VESSELS

PERFORMANCE CURVES

Fuel Fuel Fuel FuelSpeed Power Torque Cons Rate Power Torque Cons Raterpm bkW N•m g/bkW-hr L/hr bkW N•m g/bkW-hr L/hr______ ________________________________ ___________________________________1925 1119 5549 209 278.7 1119 5549 209 278.71800 915 4851 203 221.7 1119 5934 206 274.61700 770 4327 203 186.4 1088 6112 203 263.81600 642 3833 205 156.9 1002 5980 196 234.31500 529 3369 209 131.8 898 5717 189 201.91400 430 2935 213 109.4 808 5511 184 177.51200 271 2156 223 72.0 456 3629 198 107.81000 157 1497 234 43.7 210 2005 221 55.3

900 114 1213 241 32.8 168 1783 231 46.3

Fuel Fuel Fuel FuelSpeed Power Torque Cons Rate Power Torque Cons Raterpm bhp lb-ft lb/bhp-hr g/hr bhp lb-ft lb/bhp-hr g/hr______ ________________________________ ___________________________________1925 1500 4093 .344 73.6 1500 4093 .344 73.61800 1226 3578 .334 58.6 1500 4377 .338 72.51700 1033 3191 .334 49.2 1459 4508 .334 69.71600 861 2827 .337 41.4 1344 4411 .323 61.91500 710 2485 .343 34.8 1204 4217 .310 53.31400 577 2165 .351 28.9 1084 4065 .303 46.91200 363 1590 .367 19.0 612 2677 .326 28.51000 210 1104 .385 11.5 282 1479 .363 14.6

900 153 895 .395 8.7 225 1315 .380 12.2

Prop Demand Curve Data Max Power Curve Data

Ehp – Fast patrol craft and fast yachts with low load factors

Engine Speed rpm

To

rqu

elb

-ft

Po

we

r b

hp

Co

ns.

Ra

teg

/hr

L/h

rN

•mb

kW

700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000

1075

575

75

6000

750

280

150

20

33752500

3500

4500

1500

500

525

4565

1500

1200

900

600

300

Ehp Rating –1925 rpm 1119 bkW (1500 bhp) 1521 mhp

Fuel Fuel Fuel FuelSpeed Power Torque Cons Rate Power Torque Cons Raterpm bkW N•m g/bkW-hr L/hr bkW N•m g/bkW-hr L/hr______ ________________________________ ___________________________________1880 1044 5303 207 257.8 1044 5303 207 257.81800 916 4861 204 222.3 1044 5539 204 254.31700 772 4336 203 186.8 1044 5864 203 252.01600 644 3841 205 157.0 958 5718 197 225.21500 530 3376 209 131.9 898 5717 190 203.81400 431 2941 214 109.9 808 5511 188 180.61300 345 2536 219 90.1 568 4172 192 130.11200 272 2161 224 72.4 456 3629 200 108.61000 157 1500 232 43.4 210 2005 220 55.1

900 115 1215 235 32.1 168 1783 234 46.8

Fuel Fuel Fuel FuelSpeed Power Torque Cons Rate Power Torque Cons Raterpm bhp lb-ft lb/bhp-hr g/hr bhp lb-ft lb/bhp-hr g/hr______ ________________________________ ___________________________________1880 1400 3911 .340 68.1 1400 3911 .340 68.11800 1229 3585 .335 58.7 1400 4085 .336 67.21700 1035 3198 .334 49.3 1400 4325 .333 66.61600 863 2833 .337 41.5 1285 4217 .324 59.51500 711 2490 .343 34.8 1204 4217 .313 53.81400 578 2169 .351 29.0 1084 4065 .308 47.71300 463 1870 .360 23.8 762 3077 .316 34.41200 364 1594 .368 19.1 612 2677 .328 28.71000 211 1106 .381 11.5 282 1479 .362 14.6

900 154 896 .386 8.5 225 1315 .384 12.4


Dhp – Patrol craft, fast passenger vessels, and cruising yachts with low load factors.

Engine Speed rpm

To

rqu

elb

-ft

Po

wer

bh

pC

on

s. R

ate

g/h

r

L/h

rN

•mb

kW

700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000

1075

575

75

6000

750

280

150

20

33752500

3500

4500

1500

500

525

4565

1500

1200

900

600

300

Dhp Rating – 1880 rpm 1044 bkW (1400 bhp) 1420 mhp

TMI — DM1805-01

TMI — DM1803-01

Prop Demand 3.0 Exponent

• Engine Performance Parameters: Power +/- 3%; Specific Fuel Consumption +/- 3%; Fuel Rate +/- 5%.

•


PERFORMANCE CURVES

Fuel Fuel Fuel FuelSpeed Power Torque Cons Rate Power Torque Cons Raterpm bkW N•m g/bkW-hr L/hr bkW N•m g/bkW-hr L/hr______ ________________________________ ___________________________________1835 970 5045 205 236.8 970 5045 205 236.81800 915 4855 204 222.0 969 5143 204 235.41600 643 3836 204 156.6 970 5786 198 229.01400 431 2937 213 109.5 808 5511 185 177.81200 271 2158 223 72.1 456 3629 198 107.81000 157 1498 234 43.8 210 2005 221 55.3

700 54 734 252 16.2 113 1542 242 32.6

Fuel Fuel Fuel FuelSpeed Power Torque Cons Rate Power Torque Cons Raterpm bhp lb-ft lb/bhp-hr g/hr bhp lb-ft lb/bhp-hr g/hr______ ________________________________ ___________________________________1835 1300 3721 .337 62.6 1300 3721 .337 62.61800 1227 3581 .335 58.6 1300 3793 .335 62.21600 862 2829 .336 41.4 1300 4268 .326 60.51400 577 2166 .351 28.9 1084 4065 .303 47.01200 364 1592 .367 19.0 612 2677 .326 28.51000 210 1105 .385 11.6 282 1479 .363 14.6700 72 541 .415 4.3 152 1137 .398 8.6


Chp – Fast commercial and passenger vessels and cruising yachts with moderateload factors (maximum continuous rating).

Engine Speed rpm

To

rqu

elb

-ft

Po

we

r b

hp

Co

ns.

Ra

teg

/hr

L/h

rN

•mb

kW

700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000

1075

575

75

6000

750

280

150

20

33752500

3500

4500

1500

500

525

4565

1500

1200

900

600

300

Chp Rating – 1835 rpm 970 bkW (1300 bhp) 1318 mhp

Fuel Fuel Fuel FuelSpeed Power Torque Cons Rate Power Torque Cons Raterpm bkW N•m g/bkW-hr L/hr bkW N•m g/bkW-hr L/hr______ ________________________________ ___________________________________1785 895 4788 203 216.8 895 4788 203 216.81600 645 3847 205 157.3 895 5342 197 209.71400 432 2945 214 110.1 808 5511 180 173.41200 272 2164 224 72.6 456 3629 198 107.51000 157 1503 232 43.5 210 2005 228 57.1

800 81 962 247 23.7 138 1647 237 39.0700 54 736 253 16.3 113 1542 241 32.4

Fuel Fuel Fuel FuelSpeed Power Torque Cons Rate Power Torque Cons Raterpm bhp lb-ft lb/bhp-hr g/hr bhp lb-ft lb/bhp-hr g/hr______ ________________________________ ___________________________________1785 1200 3531 .334 57.3 1200 3531 .334 57.31600 864 2837 .337 41.6 1200 3940 .323 55.41400 579 2172 .352 29.1 1084 4065 .296 45.81200 365 1596 .368 19.2 612 2677 .325 28.41000 211 1109 .381 11.5 282 1479 .375 15.1

800 108 710 .406 6.3 185 1215 .390 10.3700 72 543 .417 4.3 152 1137 .395 8.6


Bhp – Fast commercial and passenger vessels, including hydrofoils, catamarans,SES, and SWATH with high load factors (continuous service rating).

Engine Speed rpm

To

rqu

elb

-ft

Po

wer

bh

pC

on

s. R

ate

g/h

r

L/h

rN

•mb

kW

700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000

1075

575

75

6000

750

280

150

20

33752500

3500

4500

1500

500

525

4565

1500

1200

900

600

300

Bhp Rating – 1785 rpm 895 bkW (1200 bhp) 1217 mhp

TMI — DM1801-01

TMI — DM1799-01

Prop Demand 3.0 Exponent

• Engine Performance Parameters: Power +/- 3%; Specific Fuel Consumption +/- 3%; Fuel Rate +/- 5%.

•

Materials and specifications are subject to change without notice. The International System of Units (SI) is used in this publication.

LEHM8177 Printed in U.S.A. © 1998 Caterpillar Inc.Supersedes LEHM5345 All rights reserved.


3508B High Performance Propulsion EngineDimensions shown in millimeters

Rear View

2151.2

1793.6

335.0

1559.0

609.7

Right Side View

465.9920.0

1872.8

PERFORMANCE DATA*

Turbocharged-Sea Water Aftercooled

DIMENSIONS

Rating Level Ehp Dhp Chp Bhp

Rated rpm 1925 1880 1835 1785

NOx (g/bhp-hr)* 6.34 6.25 6.20 6.14

* NOx per ISO8178 Part 4 Test Cycle E3.

RATING DEFINITIONS AND CONDITIONS

Ratings are based on SAE J1228 standardconditions of 100 kPa (29.61 in Hg) and 25° C(77° F). These ratings also apply at ISO3046/1,ISO8665, DIN6271, and BS5514 standardconditions of 100 kPa (29.61 in Hg), 27° C (81° F)and 60% relative humidity. Ratings are valid forair cleaner inlet temperatures up to and including50° C (122° F) and for sea water temperatures upto 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 at 29° C (85° F) andweighing 838.9 g/liter (7.001 lbs/U.S. gal). Fuelconsumption shown with all oil, fuel, and waterpumps, engine driven. For a “without pumps”condition, deduct approximately 0.5% for eachpump not engine driven.

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

Engineering

461