Cat 3208 specs

Cat 3208 specs DEFAULT

Caterpillar Inc.

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Caterpillar Inc. is an American corporation which designs, manufactures, markets and sells machinery, engines, financial products and insurance to customers via a worldwide dealer network. Caterpillar is the world’s leading manufacturer of construction and mining equipment, diesel and natural gas engines, industrial gas turbines and diesel-electric locomotives. With more than us$89 billion in assets, Caterpillar was ranked number one in its industry and number 44 overall in the 2009 Fortune 500.

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>> Model Section Under Development <<

Twin Caterpillar 3208T engines powering Clogher Head lifeboat (Ireland)

Twin Caterpillar 3208T engines powering Clogher Head lifeboat (Ireland)

Caterpillar had came out with the 1100 medium truck engine in the 1960’s which became the 3160 marine engine. it suffered from weak “bottom end” problems also. In marine use, it also suffered from a design flaw of the camshaft driven gear that sometimes resulted in the gear spinning on the camshaft during a prop-strike. When Caterpillar came out with the 3160’s successor, the 3208, they improved the strength of the “bottom end”, but like the 3160 it still had the camshaft gear flaw.

See Predecessor: Caterpillar 3160
The original caterpillar 3208 diesel engine was a 225hp, 636 cubic-inch capacity V8 design. It did not have cylinder liners, but many engineering companies would re-bore the blocks and fit oversize pistons and rings rather than throw the engines away. (They were known as “throw away engines,” which the makers claim was one of the design criteria.)
The 3208 emerged in 1973 as a turbocharged version but in 1981, major design mods such as stronger internal rotating parts, three-ring pistons, and beefed up oil and water pumps. The cooling system was also upgraded to include a bigger heat exchanger and seawater pump to cool the engine oil, exhaust manifolds, and turbochargers with the expansion tank and thermostats also being modified.
It was used in many applications but soon became a firm favorite with the yachts and pleasure boats fraternity, with the larger vessels having twin turbo-charged engines fitted.
Unfortunately, the engine was a bit of a gas guzzler and failed to meet the new internal combustion exhaust emission laws which were due to come into force in the new millennium; therefore it was discontinued in 1999.
Read more: http://www.brighthub.com/engineering/marine/articles/77630.aspx#ixzz1WmIKy6GD
Originally produced in 1975 through a collaboration between Caterpillar and Ford, the Cat 3208 diesel engine was extremely popular through its entire production run, which lasted into the early 1990s. The engine was used in heavy trucks, including tractor trailers, garbage trucks, school buses and construction equipment. The engine was also used in power plant and marine applications. Use of the engine was widespread and its performance was reliable; as a result, many 3208-equipped vehicles remain in service long after production of the engine ceased.
Configuration
The 3208 is an eight-cylinder, four-stroke diesel engine with a V-8 configuration. It has a 114.3-millimeter bore and a 127-millimeter stroke. Different variations of the engine weigh between 722 and 899 kilograms. The engine displaces 10.4 liters. It has a cooling system capacity of between 47.3 and 56 liters and a lube oil system capacity of between 12 and 15 liters.
Power
Three versions of the 3208 engine have varying power ratings. The version with the lowest power produces 210 horsepower, the mid-range version produces 375 horsepower and the most powerful version produces 435 horsepower.
Compression Ratio
The compression ratio for the 210- and 375-horsepower versions of the 3208 is 16.5:1. The compression ratio of the 435-horsepower version is 15.5:1.
Other Details
The 3208 has a forged steel crankshaft, and early versions had a cast iron camshaft, which was replaced with a steel camshaft in later versions. Both turbocharged and non-turbo versions of the engine were produced.
Read more: Cat 3208 Engine Specifications | eHow.com http://www.ehow.com/list_7291145_cat-3208-engine-specifications.html#ixzz1WmMBubXE
Caterpillar 3208 – The Throwaway Engine to Keep
written by: Willie Scott • edited by: Lamar Stonecypher • updated: 7/15/2010
Although its original concept was a cheap throw-away engine, the Caterpillar 3208 engine has been used for many applications. Perhaps the most popular application has been to power marine craft, where it has proved to be a reliable engine, with some boats clocking up thousands of running hours.
Introduction to Caterpillar Tractors and 3208 Diesel Engines
The Caterpillar Company was formed in 1911, after some years of research and development. It reputedly took its name from a farmer who was watching a test run and stated that it moved “like a caterpillar.”
Caterpillar engines have proved to be reliable and cheap, and the 3208 is particular suited to fitting into all sizes of boats. An RNLI Lifeboat near Drogheda in Ireland is powered by twin 3208 turbo-charged diesels – such is their reliability.
This is an article on diesel engines and in particular the Caterpillar 3208 diesel engine and its application in modern times. We begin with a short history of the Caterpillar Company and move on to its assets.
Short History of the Caterpillar Company
As we saw in the introduction, the Holt Caterpillar Company was founded in 1911. It produced tractors and exported them to Canada, Argentina, and Mexico, gaining much experience which it used during the First World War.
During the war Caterpillar Armored Tractors were used extensively to tow artillery pieces such as howitzers. It wasn’t long before the British Army Engineers saw the potential of using the track driven tractor as an armored tank.
After the war, the depression set in and Holt Caterpillar was forced to sell out to a competitor named Best who scrapped the production of large tractors in favor of smaller agricultural ones. He formed the Caterpillar Company in 1925. All the livery including the engines was painted yellow, distinguishing it from its competitor’s machines.
During this time the engines were developing apace, and during the Second World War found fame once again when their diesel engines became the preferred engine as opposed to a gas (petrol) one.
Since then Caterpillar engines have become world famous. I worked on a couple of 3208 marine diesels over the years, and although they were very basic, I liked them.
They were reliable being easy to strip and repair as there was always plenty of spares around, no matter what part of the world I was working in.
More from http://www.brighthubengineering.com/marine-engines-machinery/77630-caterpillar-3208-the-throwaway-engine-to-keep/#ixzz1WmIKy6GD
+
weak “bottom end”
Design Flaw: Camshaft Gear interference fit. In marine use, it suffered from a design flaw of the camshaft driven gear that sometimes resulted in the gear spinning on the camshaft during a prop-strike.  The gear and camshaft can be drilled and tapped for bolts to secure the gear to the camshaft.
+
Detroit Diesel saw the need for a cheap, fuel efficient engine to power medium trucks and school busses. Their answer was a lightweight, slightly under-square (108mm bore x 112mm stroke) 500 cubic inch displacement, four-stroke-cycle V8 diesel engine called the 8.2 Litre. The engine was eventually marinized by a few third-party companies (¿including Johnson & Towers?) and fitted to vessels, but they proved to be quite troublesome as they were prone to head gasket problems due to the lack of a proper ‘deck’ for the the head, and bearing failures due to a weak “bottom end”.
Cummins developed the 555 cubic inch displacement V-555 (Triple Nickel) engine to fill the same market, but it proved to have a weak “bottom end” as well.

From Se.


Specifications For Caterpillar 3208 Diesel Engine
Features: Horizontal Crankshaft and Vertical Boreable Parent Bore Cylinders

>> Specification Table Under Development <<

TABLE KEY:
Types of Engine Vendors: Engine design owners may produce the engines in-house as manufacturers.
^ Licensees are licensed by engine design owners to produce base engines and/or marine engines.
^ Marinizers buy base engines from the producers at wholesale, marinize them for marine service,
^ ^ and then sell them to boat builders, resellers, etc. at wholesale or to end users at retail.
^ Resellers buy marine engines at wholesale and resell them at a markup or at retail.
BASE ENGINE:Manufacturer/Vendor & Model of Base Engine followed by Specifications.
^ CYL: Cylinder Orientation & Configuration - (Dash w/no spaces) Number of Cylinders: (example: "V-8")
^ ^ Cylinder Orientation: No Code = u… = Upright (Vertical). s… = Slanted (Inclined).
^ ^ ^ h… = Horizontal (Flat, Pancake). i… = Inverted (Upside Down).
^ ^ Cylinder Configuration: …S = Single Cylinder. …T = Twin Cylinder. I = In-Line. …V = V Pattern (eg V-8).
^ ^ ^ …W = W Pattern. …Y = Y Pattern. …X… = X Pattern. …+… = + Pattern. …Δ… = Delta.
^ ^ ^ …o = Outward Facing Opposed Piston (eg Boxer). …i = Inward Facing Opposed Piston (O-P).
^ ^ ^ …R,R2,R3,R4 = Radial (Single,Double,Triple,Quad Banks). …® = Radial Rotary = Rotary Radial.
^ ^ ^ …Θ… = Rotary. …∞ = BiQuad. …ω = Wankel.
^ BORE & STROKE: …mm = Millimeters. …in = …" = Inches.
^ DISPLACEMENT = Swept Volume: …cc = Cubic Centimeters (cm³). …L = Liters. …ci = Cubic Inches (in³).
MODEL RATINGS: Base Engine Model, Vendor Rating Code, Duty Ratings, Power Ratings, etc.
^ A-F: Aspiration-Fueling: Intake Air uncharged or charged - Petrol or Diesel Fueling.
^ ^ Aspiration: N = Naturally Aspirated. T = Turbocharged. TT = Twin Turbos. S = Supercharged.
^ ^ ^ …c = Crankcase Scavenged. …h = Crosshead Scavenged. …b = w/Blower.
^ ^ ^ …i = Intercooled. …a = Aftercooled. …A = Air Cooled Intercooler/Aftercooler (Charged Air Cooler).
^ ^ ^ …R = …r = w/RawWater (Seawater) Cooled Intercooler/Aftercooler (Charged Air Cooler).
^ ^ ^ …F = …f = w/FreshWater (Engine Coolant) Cooled Intercooler/Aftercooler (Charged Air Cooler).
^ ^ Petrol Fueling: C = Carbureted. T = Throttle Body Injection. M = Multiport Injection.
^ ^ ^ D = Direct Injection. …a = Compressed Air Assisted Injection.
^ ^ Diesel Fueling: M = Mechanical Injection. …d = Distributor Injection Pump. …I = In-line Injection Pump.
^ ^ ^ …ii = II = Integral Injector. C = Common Rail. E = …e = Electronic Injection.
^ ^ ^ …d = Direct Injection (into combustion chamber). …i = Indirect Injection (pre-combustion chamber).
^ DR = Duty Ratings: See the Engine Duty Ratings Description at the end of the Table.
^ ^ ♦♦ = Highest Power Rating from Data Sources.
^ ^ C = Continuous (eg Workboats). I = Intermittent (eg Pleasure Craft). M = Max = Maximum.
^ ^ BS = B. S. Rating. OL = B. S. Overload.
^ POWER: kW = Kilowatts. HP = Horsepower. BHP = Brake Horsepower. SHP = SAE Horsepower.
^ ^ sHP = Shaft Horsepower. MHP = Metric Horsepower. PS = Pferdestärke (Metric Horsepower).
^ RPM = Power Ratings @ Revolutions Per Minute.
^ YEARS: Beginning∼Ending. Trailing "–" or "∼" without an Ending Date = Still in Production/Available.
^ ^ YYYY usually = Model Year. MM/YY = actual Month/Year.
^ ^ Vendors typically market products after production ceases, often until stockpiles are exhausted.
^ DS = Data Source: Click DS Link to view DS. ♦♦♦ = Summary of Data Compiled from Multiple Sources.
^ ^ DS's 1st Letter = Vendor's 1st Letter (example: F = Ford). Wik = Wikipedia. BD = BoatDiesel.com.
^ ^ DS's 2nd Letter:  ...d = Directory. ...w = Webpage. ...c = Catalog. ...b = Brochure. ...s = SpecSheet.
^ ^ ^ ...o = Owner's/Operator's Manual. ...m = Service/Repair/Technical/Workshop/Shop Manual.
^ ^ ^ ...p = Parts Catalog. …# = Serial # List ...h = History. ...y = Years Vended (History). ...f = Forum.
^ ^ DS's Last Digits: ...1,2,3,A,B,C,etc = Source #, Version, Revision (example: Fc1 = Ford Catalog #1).
Data: ⊗ = Data Not Available from Data Source. ¿... = ...? = Data Unconfirmed/in Question.

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⇒ Specification Table Under Development ⇐

BASE ENGINE:
MRCYLBORESTROKEDISPLACEMENT
ML⊗-⊗⊗mm / ⊗in⊗mm / ⊗in⊗cc / ⊗L / ⊗ci
MODEL RATINGS:
VRA-FDRkWBHPMHPRPMYEARSDS
ML (Ns)⊗-⊗♦♦♦⊗∼⊗♦♦♦
  ^ ML (Ns)⊗-⊗⊗∼⊗?
PRODUCERS:
LICENSEES:
MARINIZERS:
RESELLERS:
VRA-FDRkWBHPMHPRPMYEARSDS
ML (Ns)⊗-⊗♦♦♦⊗∼⊗♦♦♦
  ^ ML (Ns)⊗-⊗⊗∼⊗?
VRA-FDRkWBHPMHPRPMYEARSDS
ML (Ns)⊗-⊗♦♦♦⊗∼⊗♦♦♦
  ^ ML (Ns)⊗-⊗⊗∼⊗?

NOTES:

ENGINE FAMILY/MODELCYLBORESTROKEBORESTROKEDISPLACEMENT
3208V-8−P114.3mm127mm?in?in10.4L / 636ci
MODEL/RATINGASPKWHPMHP@RPMYEARS MFR'D
?NA?225??1975?-1999?
?NA?210??1975?-1999?
?T?375??1973?-1999?
?T?435??1981-1999

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Vr
Engine Duty Ratings

This section is under development and may contain rough drafts.

Agricultural:
C = Continuous: Power available continuously.
I = Intermittent: Power available for 1 hour out of 8 hours with low annual hours.

Automotive:
C = Continuous: Power available continuously.
I = Intermittent: Power available for 1 hour out of 8 hours with low annual hours.

Industrial:
C = Continuous: Power available continuously.
I = Intermittent: Power available for 1 hour out of 8 hours with low annual hours.

Marine:
C = Continuous: Power available continuously.
I = Intermittent: Power available for 1 hour out of 8 hours with low annual hours.
Cm = Commercial.
Pc = Pleasure Craft.

Power Generation:
C = Continuous: Power available continuously.
I = Intermittent: Power available for 1 hour out of 8 hours with low annual hours.
P = Intermittent Peak Load.
G = Generator.
GC = Generator - Continuous.
GI = Generator - Intermittent.
GP = Generator - Intermittent Peak Load.
NOTES: AC Generators use 1500 RPM for 50 Cycle and 1800 RPM for 60 Cycle.


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⇒ Directory Under Development ⇐

DOCUMENTATION TYPE:
DOCUMENT TITLE – Products (Notes) — Creator – SourceDS
Catalogs and Brochures:↓c/b↓
Vr Catalog – Ps (Ns) — Cr – Se–c–
Vr Brochure – Ps (Ns) — Cr – Se–b–
Ads: (Print Advertisements)↓a↓
Vr Ads - Ps (Ns) — Cr – Se–a–
AdVids: (Advertisement Videos)↓av↓
Vr AdVids – Ps (Ns) — Cr – Se–av–
SpecSheets: (Specification Sheets‚ Data Sheets‚ FactSheets)↓s↓
Vr SpecSheet – Ps (Ns) — Cr – Se–s–
Charts and Graphs: (Power & Torque Curves)↓g↓
Vr Chart/Graph – Ps (Ns) — Cr – Se–g–
Pictures:↓x↓
Vr Picture (Vw) – Ps (Ns) — Cr – Se–x–
Press Releases: (by Date: = YYMMDD)↓pr↓
Vr Press Release (DE) – Ps (Ns) — Cr – Se–pr–
Model History:↓h↓
Vr Model History – Ps (Ns) — Cr – Se–h–
Serial Number Guides: (Date of Manufacture‚ Date Codes‚ etc)↓#↓
Vr Serial Number Guide – Ps (Ns) — Cr – Se–#–
Installation Instructions:↓i↓
Vr Installation Instructions – Ps (Ns) — Cr – Se–i–
Installation Drawings with Dimensions:↓d↓
Vr Installation Diagram/Drawing – Ps (Ns) — Cr – Se–d–
OpManuals: (Owner's/Operator's Handbooks/Manuals)↓o↓
Vr OpManual – Ps (Ns) — Cr – Se–o–
Parts Catalogs: (with Exploded Views & Parts Lists)↓p↓
Vr Parts Catalog – Ps (Ns) — Cr – Se–p–
Parts Bulletins: (by Date: YYMMDD)↓pb↓
Vr Parts Bulletin – Ps (Ns) — Cr – Se–pb–
Shop Manuals: (Repair/Service/Technical/Workshop Manuals)↓m↓
Vr Shop Manual – Ps (Ns) — Cr – Se–m–
Wiring Diagrams:↓w↓
Vr Wiring Diagram – Ps (Ns) — Cr – Se–w–
TechVids: (Technical Videos: Service Training‚ etc.)↓v↓
Vr TechVids (DE) – Ps (Ns) — Cr – Se–v–
Service Bulletins: (by Date: YYMMDD)↓sb↓
Vr Service Bulletin (DE) – Ps (Ns) — Cr – Se–sb–
Product Recalls:↓r↓
Vr Recall – Ps (Ns) — Cr – Se–r–
Other Documentation:↓?↓
Vr ? – Ps (Ns) — Cr – Se–?–

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⇒ Directory Under Development ⇐

TYPE:
TITLE – + (Notes) — Creators (Authors‚ Editors‚ Directors‚ Actors‚+) – Source (Publishers‚+)DS
Forum Posts:
Te – + (Ns) — Cr – Se
Tech Notes:
Te – + (Ns) — Cr – Se
Tech Tips:
Te – + (Ns) — Cr – Se

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Magazines:
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Cat 3208 Engine Specifications

Originally produced in 1975 through a collaboration between Caterpillar and Ford, the Cat 3208 diesel engine was extremely popular through its entire production run, which lasted into the early 1990s. The engine was used in heavy trucks, including tractor trailers, garbage trucks, school buses and construction equipment. The engine was also used in power plant and marine applications. Use of the engine was widespread and its performance was reliable; as a result, many 3208-equipped vehicles remain in service long after production of the engine ceased.

Configuration

The 3208 is an eight-cylinder, four-stroke diesel engine with a V-8 configuration. It has a 114.3-millimeter bore and a 127-millimeter stroke. Different variations of the engine weigh between 722 and 899 kilograms. The engine displaces 10.4 liters. It has a cooling system capacity of between 47.3 and 56 liters and a lube oil system capacity of between 12 and 15 liters.

Power

Three versions of the 3208 engine have varying power ratings. The version with the lowest power produces 210 horsepower, the mid-range version produces 375 horsepower and the most powerful version produces 435 horsepower.

Compression Ratio

The compression ratio for the 210- and 375-horsepower versions of the 3208 is 16.5:1. The compression ratio of the 435-horsepower version is 15.5:1.

Other Details

The 3208 has a forged steel crankshaft, and early versions had a cast iron camshaft, which was replaced with a steel camshaft in later versions. Both turbocharged and non-turbo versions of the engine were produced.

References

Writer Bio

Evan Gillespie grew up working in his family's hardware and home-improvement business and is an experienced gardener. He has been writing on home, garden and design topics since 1996. His work has appeared in the South Bend Tribune, the Fort Wayne Journal-Gazette, Arts Everywhere magazine and many other publications.

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Spec Sheets - Cat 3208 Propulsion

Engine

3208

157-324 bkW/210-435 bhp


2800 rpm

CATERPILLAR ENGINE SPECIFICATIONS

Shown with
Accessory Equipment

V-8, Four-Stroke-Cycle Diesel


Emissions . . . . . . . . . . . . . . . . . . . . . . IMO compliant
Bore mm (in) . . . . . . . . . . . . . . . . . . . . 114.3 (4.5)
Stroke mm (in) . . . . . . . . . . . . . . . . . . . . 127 (5.0)
Displacement L (cu in) . . . . . . . . . . . . 10.4 (636)
Rotation (from flywheel end) . Counterclockwise
Compression Ratio. . . . . . . . . . . . . . . . . . . . . . 16.5:1
435 hp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15.5:1
Capacity for Liquids L (U.S. gal)
Cooling System (engine only)
DINA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47.3 (12.5)
DITA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56.0 (14.8)
Lube Oil System (refill)
DINA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.0 (3.2)
DITA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15.0 (4.0)
Oil Change Interval hrs. . . . . . . . . . . . . . . . . . 250
Engine Weight, Net Dry (approx) kg (lb)
210 hp . . . . . . . . . . . . . . . . . . . . . . . . . 722 (1592)
375 hp . . . . . . . . . . . . . . . . . . . . . . . . . 772 (1702)
435 hp . . . . . . . . . . . . . . . . . . . . . . . . . 899 (1982)

STANDARD EQUIPMENT
Air Intake
dry type, single stage air cleaner; AirSep for
435 & 375 hp Classic Editions
Alternator
belt driven, 51 Amp, 12 Volt
Cooling
thermostats, jacket water pump, auxiliary sea
water pump, expansion tank, coolant recovery
tank (DITA), marine gear oil cooler (DITA: sea
water cooled, DINA: jacket water cooled),
engine mounted heat exchanger
Exhaust system
exhaust manifold and turbocharger, water
cooled, 152 mm (6 in) round flanged outlet
(DITA); exhaust manifold, water cooled, dual
64 mm (2.5 in) round flanged threaded outlets
(DINA)

Flywheel and flywheel housing


SAE No. 2, SAE No. 3
Fuel
filter, priming pump
Governor
mechanical
Instrumentation
tachometer drive, wiring harness
Lubricating
oil filter, filler, oil level gauge, crankcase
breather (DITA), positive crankcase ventilation
valve (DINA)
Starting
12V electric
Support
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
to 52 C (125 F) measured at the fuel filter base. Power rated in accordance with
NMMA procedure as crankshaft power. Reduce crankshaft power by 3% for propeller
shaft power.

3208 MARINE ENGINE 157-324 bkW


PERFORMANCE CURVES
Turbocharged-Aftercooled (DITA) Separate
Circuit Aftercooling 30 C (86 F) sea water
324 bkW (435 bhp) 441 mhp
450

325

225
250
125

bkW

Power
bhp

350

150
50

25

1000

600

400

Cons. Rate
g/hr

200

200

25
75
15

50
25

L/hr

Torque
lb-ft

800
600

Nm

1400

1000

TMI TM9905-02

Cubic Prop Demand Curve Data


(for displacement hulls only)

E Rating 2800 rpm

1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800

Engine Speed rpm

Speed
rpm
______
2800
2600
2400
2200
2000
1800
1700
1600
1500

Fuel
Fuel
Power Torque
Cons
Rate
bkW
Nm g/bkW-hr L/hr
________________________________
325
260
204
157
118
86
73
61
50

Speed
rpm
______
2800
2600
2400
2200
2000
1800
1700
1600
1500

Max Power Curve Data

1107
954
813
683
565
457
408
361
318

235
217
209
206
207
215
222
229
232

90.7
67.3
50.8
38.6
29.2
22.0
19.2
16.6
13.8

Fuel
Fuel
Power Torque
Cons
Rate
bhp
lb-ft lb/bhp-hr g/hr
________________________________
435
348
274
211
159
116
97
81
67

816
704
600
504
417
337
301
266
235

.386
.357
.344
.339
.340
.353
.365
.376
.381

24.0
17.8
13.4
10.2
7.7
5.8
5.1
4.4
3.6

Fuel
Fuel
Power
Torque
Cons
Rate
bkW
Nm
g/bkW-hr L/hr
___________________________________
325
322
315
303
293
255
221
194
174

1107
1184
1251
1314
1397
1352
1241
1158
1105

235
221
209
205
210
214
215
217
225

90.7
85.1
78.3
73.9
73.1
65.1
56.7
50.2
46.6

Fuel
Fuel
Power
Torque
Cons
Rate
bhp
lb-ft
lb/bhp-hr g/hr
___________________________________
435
432
422
406
392
342
296
260
233

816
873
923
969
1030
997
915
854
815

.386
.363
.344
.337
.345
.352
.353
.357
.370

24.0
22.5
20.7
19.5
19.3
17.2
15.0
13.3
12.3

E RATING Planing hull vessels such as pleasure craft, harbor patrol, harbor master,
and some fishing and pilot boats.

280 bkW (375 bhp) 380 mhp


375

Power
bhp

275

200

225
150

bkW

250

325

TMI TM3131-03

Cubic Prop Demand Curve Data


(for displacement hulls only)

E Rating 2800 rpm

Speed
rpm
______
2800
2600
2400
2000

Max Power Curve Data

Fuel
Fuel
Power Torque
Cons
Rate
bkW
Nm g/bkW-hr L/hr
________________________________
280
224
176
102

956
824
702
490

238
225
217
202

79.5
60.1
45.5
24.5

Fuel
Fuel
Power
Torque
Cons
Rate
bkW
Nm
g/bkW-hr L/hr
___________________________________
280
269
254
209

956
991
1015
1000

238
229
210
199

79.5
73.5
63.7
49.6

175
100

125

Speed
rpm
______
1000

600

Cons. Rate
g/hr

350

Nm

800
550
450

80
60

15
10

40

1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800

Engine Speed rpm

Prop Demand

3.0 Exponent (for displacement hulls only)

Engine Performance Parameters: Power +/- 3%;


Specific Fuel Consumption +/- 3%; Fuel Rate +/- 5%.

375
300
236
137

703
606
516
360

.391
.370
.357
.332

21.0
15.9
12.0
6.5

Fuel
Fuel
Power
Torque
Cons
Rate
bhp
lb-ft
lb/bhp-hr g/hr
___________________________________
375
361
341
280

703
729
746
735

.391
.376
.345
.327

21.0
19.4
16.8
13.1

E RATING Planing hull vessels such as pleasure craft, harbor patrol, harbor master,
and some fishing and pilot boats.

400

20

2800
2600
2400
2000

L/hr

Torque
lb-ft

750
650

Fuel
Fuel
Power Torque
Cons
Rate
bhp
lb-ft lb/bhp-hr g/hr
________________________________

3208 MARINE ENGINE 157-324 bkW


PERFORMANCE CURVES
Naturally Aspirated (DINA) PRELIMINARY
Cubic Prop Demand Curve Data
(for displacement hulls only)

Max Power Curve Data

Speed
Power
Torque
rpm
bkW
Nm
________
________________________________

Speed
Power
Torque
rpm
bkW
Nm
___________________________________

E Rating 2800 rpm


157 bkW (210 bhp) 213 mhp
150

150
100
100

2800
2600
2400
2200
2000
1800
1700
1600
1500

bkW

Power
bhp

200

50
50

450

300

534
460
392
330
272
221
197
174
153

Speed
Power
Torque
rpm
bhp
lb-ft
________
________________________________

650

400

Nm

Torque
lb-ft

500

157
125
99
76
57
42
35
29
24

2800
2600
2400
2200
2000
1800
1700
1600
1500

200
250
100

1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800

Engine Speed rpm

210
168
132
102
76
56
47
39
32

394
339
289
243
201
163
145
128
113

2800
2600
2400
2200
2000
1800
1700
1600
1500

157
151
144
137
129
120
115
109
104

534
554
574
595
615
636
645
653
663

Speed
Power
Torque
rpm
bhp
lb-ft
___________________________________
2800
2600
2400
2200
2000
1800
1700
1600
1500

210
202
193
184
173
161
154
147
140

394
409
423
439
454
469
476
482
489

E RATING Planing hull vessels such as pleasure craft, harbor patrol, harbor master,
and some fishing and pilot boats.

Prop Demand

3.0 Exponent (for displacement hulls only)

Engine Performance Parameters: Power +/- 3%;


Specific Fuel Consumption +/- 3%; Fuel Rate +/- 5%.

3208 MARINE ENGINE 157-324 bkW


DIMENSIONS

L
DINA
DITA

mm
1086
1271

H
in
42.7
50.0

mm
921
1019

W
in
36.2
40.1

mm
917
963

in
36.1
37.9

RATING DEFINITIONS AND CONDITIONS


Ratings are based on SAE J1228/ISO8665
standard conditions of 100 kPa (29.61 in Hg), 25 C
(77 F), and 30% relative humidity. These ratings
also apply at ISO3046/1, DIN6271/3, and BS5514
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/liter (7.001 lbs/U.S. gal).
Additional ratings may be available for specific
customer requirements. Consult your Caterpillar
representative for additional information.

Materials and specifications are subject to change without notice.


LEHM7216-02 (10-99)

Printed in U.S.A.

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


1999 Caterpillar Inc.
All rights reserved.
Sours: https://es.scribd.com/doc/112745913/Spec-Sheets-Cat-3208-Propulsion
Caterpillars Twin Cats 3208 Turbo on 41' boat

The need for speed greatly affected engine longevity as the builders tried to cram more and more HP into their boats. Unfortunately those older engine rooms couldn't take bigger motors so the answer was to get more HP out of the same size motors. A new Cabo 43 for example is now powered with 900 HP MAN V8-900CRM's. Those engines are almost 900 CI displacement and they fit into 40-45 foot sports yet the maintenance requirements are large money. You don't even want to ask what the yearly maintenance cost following MANs recommendations. Although the 3208 has been discontinued (1999) there are many still in service; the most popular applications for these engines are marine applications.The Caterpillar TA 3208, 375 HP will drive a 13T boat along at 35 knots.

Caterpillar 3208TA EngineAlthough the 3208 has been discontinued (1999) there are many still in service; the most popular applications for these engines are marine applications.

The Caterpillar TA 3208, 375 HP will drive a 13T boat along at 35 knots.

The difference between a NA engine and a highly boosted engine is huge when longetivity is the primary goal. Put a lower HP variant of the 3208 in a lobster boat or trawler and they run for many thousands of hours. Put the highest power variant in a big sportfish and run it 200 off the top and life is greatly reduced. This is really no different than any other diesel engine, the same holds true for an old 671NA compared to it's highly boosted counterpart 671TI producing more than twice the horsepower. As Jags points out there is also a line you cross where age becomes a factor more than hours. Hour meters like odometers seem to be the predominant decision logic when looking at older engines which is really just a small indicator of the life left in any engine. How the engines were maintained is of course a huge factor but the application (boat size, weight and cruise rpms) play a huge part in the longetivity equation. A 40 something sportfisherman running a couple hudred off the top it's whole life compared to a displacement hull running slow speeds is like night and day no matter what engine is installed.

The original caterpillar 3208 diesel engine was a 225hp, 636 cubic-inch capacity V8 design. It did not have cylinder liners, but many engineering companies would re-bore the blocks and fit oversize pistons and rings rather than throw the engines away. (They were known as “throw away engines,” which the makers claim was one of the design criteria.)

The 3208 emerged in 1973 as a turbocharged version but in 1981, major design mods such as stronger internal rotating parts, three-ring pistons, and beefed up oil and water pumps. The cooling system was also upgraded to include a bigger heat exchanger and seawater pump to cool the engine oil, exhaust manifolds, and turbochargers with the expansion tank and thermostats also being modified.

It was used in many applications but soon became a firm favorite with the yachts and pleasure boats fraternity, with the larger vessels having twin turbo-charged engines fitted.

Unfortunately, the engine was a bit of a gas guzzler and failed to meet the new internal combustion exhaust emission laws which were due to come into force in the new millennium; therefore it was discontinued in 1999.

 The 375 Hp engines we see in commercial use average 10,000 hrs between rebuilds. If it is a 225 or 250 hp natural in a trawler style vessel that gets run alot, you will see upwards of 20,000 or more.

3208 Specifications

3208 Marine Propulsion Ratings by Rating Class

Marine Ratings Definitions

"A" Ratings

MODELbhpbkWmhprpmU.S.gphL/h
320815011215224007.729.3
3208215160218240011.141.9
3208235175238240011.945.2

Continuous A Rating
Load factor: 80% to 100% time at rated rpm. Typical hours/year: 5000 - 8000. "A" rating typical applications: for heavy-duty service in vessels such as freighters, tugboats, bottom drag trawlwers and deep river towboats when the engine is operated at rated load and speed up to 100% of the time without interruption or load cycling. For 3600 engines only: Continuous Service Rating is suitable for continuous duty applications, including dredges, for operation without interruption or load cycling. Maximum Continuous Rating is generally used for vessel applications involving varying loads. The engine power actually produced is limited by application guidelines, leaving a power reserve for unusual operating conditions.

"B" Ratings

MODELbhpbkWmhprpmU.S.gphL/h
320818013418324009.335.1
3208255190258240012.948.6
3208275205279240014.053.0

Medium Duty B Ratings
Load factor: 40% to 80%. Up to 80% time at rated rpm. "B" rating typical time at full load: 10 hours out of 12. Typical hours/year: 3000 - 5000. Typical applications: Vessels such as midwater trawlers, purse seiners, crew and supply boats, ferries and towboats where locks, sandbars and curves dictate frequent slowing and engine load and speed are constant with some cycling.

.

"C" Ratings

MODELbhpbkWmhprpmU.S.gphL/h
3208210157213280011.945.0
3208290216294280015.257.6
3208315235319260016.763.4

Intermittent C Ratings
Load factor: 20% to 80%. Up to 50% time at rated rpm. Typical time at full load: 6 hours our of 12. "C" rating typical applications: Vessels such as ferries, harbor tugs, fishing boats moving at higher speeds out and back (i.e. lobster, crayfish and tuna) off shore service boats and also displacement hull yachts and short trip coastal freighters where engine load and speed are cyclical. Chp - Fast commercial and passenger vessels and cruising yachts with moderate load factors.

"D" Ratings

MODELbhpbkWmhprpmU.S.gphL/h
3208210157213280011.945.0
3208300224304280016.763.2
3208340254345280018.469.7

Patrol Craft D Ratings
Load factor: Up to 50%. Up to 16% time at rated rpm. Typical time at full load: 2 hours out of 12. Typical hours/year 1000 - 3000. "D" rating typical application: Planing hull vessels such as off-shore patrol boats, customs, police and some fire and fishing boats. Also used for bow and stern thrusters.

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"E" Ratings

MODELbhpbkWmhprpmU.S.gphL/h
3208210157213280011.945.0
3208320239325280017.967.9
3208375280380280021.079.5
3208435325441280024.090.7

High Performance E Ratings
Load factor: Up to 30%. Up to 8% time at rated rpm. Typical time at full load: 1/2 hour out of 6. Typical hours/year 250 to 1000. "E" rating typical applications: Planing hull vessels such as pleasure craft, harbor patrol, harbor master and some fishing and pilot boats.

CATERPILLAR MARINE 3208 DATASHEETS:

LEHM0100-1-2000

LEHM-3150_01

LEHM7216-01_1997

LEHM5482-8-1995

LEHM5037-2-95-1995


If you're looking for general boating parts, head to West Marine Online and check out their specials. If you are in search of model-specific parts, search your local CAT dealer.

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3208 specs cat

CATERPILLAR ENGINE SPECIFICATIONS - Detroit Diesel

1 Marine 3208. ENGINE 157-324 bkW/210-435 bhp 2800 rpm CATERPILLARENGINESPECIFICATIONS . V-8, Four-Stroke-Cycle Diesel Emissions .. IMO compliant Bore mm (in) .. ( ). Stroke mm (in) .. 127 ( ). Displacement L (cu in) .. (636). Rotation (from flywheel end) . Counterclockwise Compression Ratio.. :1. 435 hp.. :1. Capacity for Liquids L ( gal). Cooling System ( ENGINE only). DINA .. ( ). DITA .. ( ). Lube Oil System (refill). DINA .. ( ). Shown with DITA .. ( ). Accessory Equipment Oil Change Interval hrs.. 250. ENGINE Weight, Net Dry (approx) kg (lb). 210 hp .. 722 (1592). 375 hp .. 772 (1702). 435 hp .. 899 (1982). STANDARD EQUIPMENT.

2 Air Intake Flywheel and flywheel housing dry type, single stage air cleaner; AirSep for SAE No. 2, SAE No. 3. 435 & 375 hp Classic Editions Fuel Alternator filter, priming pump belt driven, 51 Amp, 12 Volt Governor Cooling mechanical thermostats, jacket water pump, auxiliary sea Instrumentation water pump, expansion tank, coolant recovery tachometer drive, wiring harness tank (DITA), marine gear oil cooler (DITA: sea Lubricating water cooled, DINA: jacket water cooled), oil filter, filler, oil level gauge, crankcase ENGINE mounted heat exchanger breather (DITA), positive crankcase ventilation Exhaust system valve (DINA).

3 Exhaust manifold and turbocharger, water Starting cooled, 152 mm (6 in) round flanged outlet 12V electric (DITA); exhaust manifold, water cooled, dual Support 64 mm ( in) round flanged threaded outlets front (DINA). 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 to 52 C (125 F) measured at the fuel filter base. Power rated in accordance with NMMA procedure as crankshaft power. Reduce crankshaft power by 3% for propeller shaft power. 3208 MARINE ENGINE 157-324 bkW. PERFORMANCE CURVES. Turbocharged-Aftercooled (DITA) Separate Circuit Aftercooling 30 C (86 F) sea water Cubic Prop Demand Curve Data TMI TM9905-02.

4 E Rating 2800 rpm (for displacement hulls only) Max Power Curve Data 324 bkW (435 bhp) 441 mhp Fuel Fuel Fuel Fuel 450 325. Speed Power Torque Cons Rate Power Torque Cons Rate rpm _____ bkW N m g/bkW-hr L/hr _____ bkW N m g/bkW-hr L/hr _____. 350. 225 2800 325 1107 235 325 1107 235 Power bkW. bhp 250. 2600 260 954 217 322 1184 221 150 125 2400 204 813 209 315 1251 209 2200 157 683 206 303 1314 205 50. 25 2000 118 565 207 293 1397 210 1800 86 457 215 255 1352 214 1400 1700 73 408 222 221 1241 215 1000. 1600 61 361 229 194 1158 217 800 1500 50 318 232 174 1105 225 Torque 1000 N m lb-ft 600 Fuel Fuel Fuel Fuel 400. 600 Speed Power Torque Cons Rate Power Torque Cons Rate rpm _____ bhp lb-ft lb/bhp-hr g/hr _____ bhp lb-ft lb/bhp-hr g/hr _____.

5 200. 200. 2800 435 816 .386 435 816 .386 2600 348 704 .357 432 873 .363 Cons. Rate 25. 75 2400 274 600 .344 422 923 .344 L/hr g/hr 15 50 2200 211 504 .339 406 969 .337 5. 25 2000 159 417 .340 392 1030 .345 1800 116 337 .353 342 997 .352 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800. 1700 97 301 .365 296 915 .353 ENGINE Speed rpm 1600 81 266 .376 260 854 .357 1500 67 235 .381 233 815 .370 E RATING Planing hull vessels such as pleasure craft, harbor patrol, harbor master, and some fishing and pilot boats. Cubic Prop Demand Curve Data TMI TM3131-03. E Rating 2800 rpm (for displacement hulls only) Max Power Curve Data 280 bkW (375 bhp) 380 mhp Fuel Fuel Fuel Fuel 375 Speed Power Torque Cons Rate Power Torque Cons Rate 250 rpm _____ bkW N m g/bkW-hr L/hr _____ bkW N m g/bkW-hr L/hr _____.

6 325. 2800 280 956 238 280 956 238 Power 275. bhp 200 2600 224 824 225 269 991 229 bkW. 225 2400 176 702 217 254 1015 210 150 2000 102 490 202 209 1000 199 175. 100 Fuel Fuel Fuel Fuel 125. Speed Power Torque Cons Rate Power Torque Cons Rate rpm _____ bhp lb-ft lb/bhp-hr g/hr _____ bhp lb-ft lb/bhp-hr g/hr _____. 750. 1000. 2800 375 703 .391 375 703 .391 650. 2600 300 606 .370 361 729 .376 Torque lb-ft 800. 2400 236 516 .357 341 746 .345 N m 550. 2000 137 360 .332 280 735 .327 450 600. 350. E RATING Planing hull vessels such as pleasure craft, harbor patrol, harbor master, 400. and some fishing and pilot boats. Cons.

7 Rate g/hr 80. L/hr 20. 15 60. 10 40. 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800. ENGINE Speed rpm Prop Demand Exponent (for displacement hulls only). ENGINE Performance Parameters: Power +/- 3%;. Specific Fuel Consumption +/- 3%; Fuel Rate +/- 5%. 3208 MARINE ENGINE 157-324 bkW. PERFORMANCE CURVES. Naturally Aspirated (DINA) PRELIMINARY. Cubic Prop Demand Curve Data E Rating 2800 rpm (for displacement hulls only) Max Power Curve Data 157 bkW (210 bhp) 213 mhp Speed Power Torque Speed Power Torque rpm _____ bkW N m _____ rpm bkW N m _____. 200 150. 2800 157 534 2800 157 534. Power bkW. 2600 125 460 2600 151 554.

8 Bhp 150. 100. 100. 2400 99 392 2400 144 574. 50 2200 76 330 2200 137 595. 50 2000 57 272 2000 129 615. 1800 42 221 1800 120 636. 1700 35 197 1700 115 645. 1600 29 174 1600 109 653. 1500 24 153 1500 104 663. 500 Speed Power Torque Speed Power Torque 650. rpm _____ bhp lb-ft _____ rpm bhp lb-ft _____. 400. Torque N m 2800 210 394 2800 210 394. lb-ft 300 450. 2600 168 339 2600 202 409. 200 2400 132 289 2400 193 423. 250 2200 102 243 2200 184 439. 100. 2000 76 201 2000 173 454. 1800 56 163 1800 161 469. 1700 47 145 1700 154 476. 1600 39 128 1600 147 482. 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800.

9 1500 32 113 1500 140 489. ENGINE Speed rpm E RATING Planing hull vessels such as pleasure craft, harbor patrol, harbor master, and some fishing and pilot boats. Prop Demand Exponent (for displacement hulls only). ENGINE Performance Parameters: Power +/- 3%;. Specific Fuel Consumption +/- 3%; Fuel Rate +/- 5%. 3208 MARINE ENGINE 157-324 bkW. DIMENSIONS. H. L W. L H W. mm in mm in mm in DINA 1086 921 917 DITA 1271 1019 963 RATING DEFINITIONS AND CONDITIONS. Ratings are based on SAE J1228/ISO8665 Fuel rates are based on fuel oil of 35 API [16 C. standard conditions of 100 kPa ( in Hg), 25 C (60 F)] gravity having an LHV of 42 780 kJ/kg (77 F), and 30% relative humidity.

10 These ratings (18 390 Btu/lb) when used at 29 C (85 F) and also apply at ISO3046/1, DIN6271/3, and BS5514 weighing g/liter ( gal). conditions of 100 kPa ( in Hg), 27 C (81 F), Additional ratings may be available for specific and 60% relative humidity. customer requirements. Consult your CATERPILLAR representative for additional information. Materials and SPECIFICATIONS are subject to change without notice. The International System of Units (SI) is used in this publication. LEHM7216-02 (10-99) Printed in 1999 CATERPILLAR Inc. All rights reserved.

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The Cat 3208 Engine. Know Your Engine. Engine Design And Problems. Cat 3208.

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