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The
New Cummins 4B 3.3-M |
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65 HP @ 2600 RPM
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Trans Atlantic
Diesels is proud to offer the "Newly Marinized Cummins
4B 3.3-M" Diesel Engine.
This rugged engine package is designed with the serious boater in mind.
The max 65 hp is achieved at just 2600 RPM. At an amazingly low 1800 RPM this engine delivers almost 55 HP.
Ideal for those long cruises.
The direct injection fuel system offers virtually instant starting
in hot or cold temperatures: No waiting for glow plugs on those
cold mornings. The low engine speed contributes to the high torque
and durability of the engine. |
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Lower
engine
speed equals
lower
fuel
consumption,
lower
noise level,
lower
operating cost and
longer
life! |
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In keeping this
unit easy to maintain and operate some key features are:
1.
Mani-Cooler:
The engine
utilizes the highly proven and efficient
one-piece combination heat exchanger, water-cooled exhaust
manifold and header tank assembly.
This greatly
reduces the amount of plumbing on the engine as well as reducing
the potential for coolant leaks. Cleaning and disassembly of this
unit requires no more than a screwdriver. Remove the
non-corrosive
neoprene end caps
and simply pull out the tube bundle.
2.
Jabsco
raw water pump:
Gear driven and
flanged-mounted off the front timing cover, creating reliability
and ease of accessibility for servicing. With durability in mind
this pump utilizes
not one but
2 sealed bearings.
3.
High
Output Balmar with HD 11/16 inch Drive Belt:
The fresh water
circulating pump and standard 60 amp alternator are
driven by a
heavy-duty 11/16" B section belt.
(Typically an
engine of this size uses a smaller 3/8" belt.) The single HD
11/16
inch belt enables the use of a
high-output alternator,
without the headache
and expense of converting to double pulleys and double belts. When
ordering the
engine a Balmar high output alternator can be specified and
delivered with it already installed and connected. Standard
options include the latest Balmar model 712 in 80 amp and 110 amp.
Connected to the state of the art fully programmable multistage
regulator type 612.
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4.
Double
Crankshaft Pulley: For driving other
accessories such as a refrigeration compressor, a double groove
crankshaft pulley is an available option.
5. Electric
Fuel Pump:
The
injector pump has a built-in transfer pump. For added
reliability a back-up electric fuel transfer pump is fitted.
6.
Deluxe
instrument panel:
Oil pressure Gauge,
Water Temp Gauge, Voltmeter, Tachometer incorporating LED Hour
meter, Key Switch and spare momentary switch for accessory use.
Alarm System Indicating High Water Temperature and Low Oil Pressure
warning. Engine Shut Down via key switch to avoid the
installation of manual pull cable. 10 , 15 and 20 foot
extension harnesses available. |
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7.
Transmission Selection:
A rugged
engine deserves a rugged transmission! For this we strongly
recommend the
PRM
260.
This
top
of the line,
hydraulically
operated gear, will run continuously in either direction (your
propeller rotation preference). A lock-up
"get
you home"
feature
is standard. Other features include external oil pump and control
valve, and a split casing with cast iron construction. It is
available with a 3.50 inch Offset drop or parallel output.
Click here to find out
more about the PRM 260 transmission.
Other popular
transmission options include the
Hurth HBW 250
and the
Borg Warner Velvet
Drive 71 or 72 series.
A standard SAE #4 bell
housing is used for simplifying the attachment of any commonly used
marine gear. We would be happy to discuss fitting your existing
transmission if desired.
8.
Oil and
filter changes:
Easy, a hand oil
change pump is fitted as standard. Fuel and oil filters are both
spin-on type. Change intervals are recommended at 500 hrs. fuel
and 250 hrs. oil. |
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INSTALLATION DIMENSIONS ~ CUMMINS 4B 3.3-M |
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CUMMINS 4B 3.3-M ~ SPECIFICATIONS |
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GENERAL ENGINE
DATA |
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Engine Model:
4B3.3-M |
Rating
Type: Intermittent |
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Rated Engine Power: 65 bhp
(48.5kw) |
Rated
Engine Speed:
2600 RPM |
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High Idle Speed Range (No Load):
2850 RPM |
Idle
Speed: 800
RPM |
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Engine Torque:
131.3 ft.lb (179 Nm) |
Brake
Mean Effective Pressure: 99.5
psi (687 kPa) |
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Piston Speed:
1963 ft/min (9.9 m/sec) |
Average
Noise Level: 94
dBA @ 1M |
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Firing Order:
1 - 3 - 4 - 2 |
Number
of Cylinders: Four |
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Configuration:
In-Line |
Aspiration:
Natural |
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Bore:
3.74
in. (95 mm) |
Stroke:
4.53
in. (115 mm) |
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Displacement:
3.3 L
(199 in.³
) |
Cycle:
4
Stroke |
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Compression Ratio:
18.8:1 |
Direction
of Rotation Viewed at Flywheel End: CCW |
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Total Weight - Dry - Less Gear:
554 lbs. |
Total
Weight - Dry - Including PRM Gear: 660
lbs. |
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Total Weight Dry Including Hurth HBW 250 Gear:
594 lbs. |
Total
Weight - Wet - Including PRM Gear: 700
lbs. |
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4B
3.3-M ~ FUEL SYSTEM |
| Fuel
Pump Type: Zexel
VE |
Injectors:
Zexel |
| Max Fuel
Consumption @ Rated RPM:
3.43 GPH (12.99 L/hr) |
Approx. Fuel
Flow to Pump @ Max RPM:
6.7 GPH (25.4 L/hr) |
| Lift
Pump Type (USCG Approved): Electric |
Lift
Pump - Lift Capacity: 6
Ft. (2.1 M) |
| Lift Pump
Flow Rate:26
GPH (98.4 LPH) @ 3.5 psi* (24.1 kPa) |
Fuel Supply
Line Restriction (Max): 3.0
in Hg. (76.2 mm Hg.) |
| Fuel
Return Line Restriction (Max): 15
in. Hg. (381 mm Hg.) |
Fuel
Supply Line Size (Min): 1/4
in. (6.4 mm) ID |
| Fuel Rerurn
Line Size (Min): 1/4
in. (6.4 mm) ID |
Fuel Filter
Change Interval: 500
Hours |
| Heat
Rejection to Fuel: 28
BTU/Min. (0.5 kW) |
Governor
Droop: 9% |
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*
Normal operating pressure 3.5 psi, minimum 2.5, maximum
shutoff 4 psi |
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4B
3.3-M ~ EXHAUST SYSTEM |
| Maximum
Exhaust Back Pressure: 3.0
in. Hg. (75 mm Hg.) |
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Exhaust
Gas Flow: 324
CFM (153 L/sec) |
| Maximum
Allowable Static Bending Moment @ Exhaust MFD Flange : 14.8
lb.ft. (20 N-m) |
| Exhaust
Gas Temperature:
1117° F (603°
C) |
| Minimum
Rise Sea Water Line to Exhaust Outlet:
12 in. (304.8 mm) |
| Recommended
Minimum Exhaust Pipe Size: Outlet
2.5 in. (63.5 mm) OD |
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4B
3.3-M ~ INTAKE AIR SYSTEM |
| Intake
Air Flow: 119
CFM (56 L/sec) |
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Intake
Manifold Pressure: -0.3
in. Hg. (-8 mm Hg) |
| Maximum
Engine Compartment Air Temperature: 140°
F (60° C) |
| Maximum
Air Temperature at Engine Inlet:
122° F (52°
C) |
| Minimum
Cross Section of Air Duct / Engine:
37 sq. in. (233 sq. mm) |
| Heat
Rejection to Ambient: 950
BTU / min (16.7 kW) |
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4B
3.3-M ~ LUBRICATION SYSTEM |
| Recommended
Lube Oil: SAE
15W40, API CH4 |
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Oil
Pressure at Idle Speed - Minimum: 31.2
psi (215 kPa) |
| Oil
Pressure at Normal Operating Range: 68
psi (469 kPa) |
| Maximum
Allowable Oil Temperature:
248° F (120°
C) |
| Oil
Pan Capacity:
1.9 Gal US (7.0 L) |
| Total
System Capacity:
1.914 Gal US (7.5 L) |
| Maximum
Operation Angularity of Oil Pan:
Front Up- 35° Front Down-
35° Side to Side- 35° |
| Low
Oil Pressure Switch Setting:
15 psi (103 kPa) |
| Lube
Oil Filter Change Interval: 250
Hours |
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4B
3.3-M ~ COOLING SYSTEM |
| Coolant
Capacity - Engine Only: 1.2
Gal US (4.5L) |
| Coolant
Capacity - Engine & Heat Exchanger:
2.9 Gal US (11L) |
| Maximum
External Pressure Loss in Cooling System:
5.0 psi (35 kPa) |
| Standard
Thermostat (modulating) Range:
180 - 203° F (82 - 95° C) |
| Maximum
Coolant Temperature:
212° F (100° C) |
| Pressure Cap
Setting at Sea Level:
7 psi (48 kPa) |
| Fresh
Water Flow:
34.9 GPH (132.3 LPH) |
| Minimum
Coolant Makeup Capacity:
2.4 Qts. US (2.2 Litre) |
| Minimum
Raw Water Pump Inlet Plumbing Diameter:
1.25" (32 mm) |
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Minimum
Raw Water Pump Inlet Restriction: 5
in. Hg. (127 mm Hg.) |
| Maximum
Raw Water Pump Initial Suction Lift: 6
ft. (2.1 M) |
| Maximum
Raw Water Pump Flow:
36.2 GPM (137
LPM)* * With 1.25" Inlet on
Pump |
| Heat
Rejection to Coolant:
1610 BTU / min. (28.3 kW) |
| High
Water Temperature Switch Setting (VDO):
205° F (96° C) |
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4B
3.3-M ~ ELECTRICAL SYSTEM |
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Minimum
Recommended Battery Capacity - Cold Soak @ 0° F (-18°
C):
550 CCA |
| Reserve
Capacity Minutes:
135 |
| Maximum
Allowable Resistance of Starting Circuit:
0012 Ohms |
| Starter
Motor:
Nippondenso 12V |
| Alternator:
Nippondenso 12V, 60 Amp |
| Fuel
Solenoid Type:
Energize to Run |
| Fuel
Solenoid Current:
1.7 Amps |
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To
request purchasing information for the Cummins 4B 3.3-M please
fill out the form below and click on the "Submit" button to send
your request to Trans Atlantic Diesels. |
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This Page Last
Updated July 24, 2007 |
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Site developed and maintained by
First InSites |
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