Engine Specification Data 

General Data 

Model .......... . 

Number of Cylinders . . .. Bore and Stroke-in (mm) . 

Displacement-ina (L) . . .. 

Compression Rat1o . . . . . 

Piston Speed-It/min (m/min) . 

Valves Per Cylinder 

Intake ........... . Exhaust ..... . 

Combustion System . 

Engine Type ..... 

Aspiration . . 

Configuration 

Turbocharger . . . . . . . . . . . . 

Charge Air Cooling System . 

Blower Type . . . . . . . . . .. 

Blower Drive Ratio . . . . . . . 

Low Idle Speed-rimin . . . . 

Max. No Load Speed-rimin . 

Thrust Bearing Load Limit 

Continuous-lbf(n) . . . . . .. 

lntermittent-lbf(n) . . . . . .. 

Engine Crankcase Vent System ... 

Maximum Pressure-in H20 (kPa) . 

Physical Data 

Size 

. . 1042-3000,5000 

.. 4 

. 4.25x5.00 (108x127) 

. 284 (4.66) . 18.7:1 

. 1750 (533) 

. Not Applicable 

. 4 

Direct Injection 

lnline- 2 Cycle 

Natural 

Not Applicable 

None 

. Standard 

. 2.05:1 

.550 

. 2250 

. 400 (1780) 

. 1200 (5340) 

. Open 

. 1.g (0.47) 

Length-in (mm) ............. 58.0 !1473) 

W1dth-1n (mm) . . . . . . . . . . . . . . 35.0 889) 

He1.9ht-1n (mm) ............. 41.0 1041) 

We1ght, dry-lb (kg) ............ 2275 (1032) 

We1ght, wet-lb {kg) ........... 2367 (1074) 

Center of Gravity Distance 

From R.F .O.B. (x axis)-in (mm) . . . .. Above Crankshaft (y axis)-in (mm) . . . 

R1ght of Output Shaft (z axis)-ln (mm) .. 

Installation Drawing . . . . . . . . . . . 

Not Available 

Not Available 

Not Available 

5171088 

Marina Gear 

Type .................... Allison M20 

Reduction Ratios ............. 2.05:1 

Lube Oil Capacity approx. (Does not 

include heat exchanger & connections 

used externally)-pts (litre) . . . . . . . . 12 (5.7) 

(Marine gear must use straight viscosity oil) 

Fuel System 

.. N60/1.460 . . Not Applicable 

. . 53.8 (24.4) 

. . 7.6 (28.6l . . 506 (230 

.. 71.2 (270) 

Fuel Injector/Timing . . . . . 

Fuel Infection Pump/Timing . . . 

Fuel Consumption-lbihr (kgihr) . 

Fuel Consumption-galihr (Uhr) . 

Fuel Spill Rate-lbihr (kgihr) . 

Fuel Spill Rate-galihr (Uhr) . 

Total Fuel Flow-lbihr (kgihrl . Total Fuel Flow-galihr (Uhr ...... . 

. 560 (254) . 78.8 (298) 

Maximum Allowable Fuel Pump Suction 

Clean System-in Hg {kPa) . . . . . . . . 6 (20) 

Dirty System-in Hg (kPa) ........ 12 (41) 

Fuel Filter Micron Size 

Primary-Micron . . . . . . .. 30 

Secondary-Micron . . . . . . . . . . . 12 

Recommended Supply Line Diameter 

in (mm) ................. 0.5 (12.7) 

Lubrication System 

Oil Pressure 

Rated Speed-lbfiin2 (kPa) . 

Low ldle-lbfiin2 (kPa) . . . . . 

In Pan Oil Temperature-'F ('C) 

Oil Flow-gal/min (Umin) . . . . . 

Oil Pan Capacity 

High-qt (L) . . . . . . . . . . . 

Low-qt (L) .......... . 

Total Engine Oil Capacity with 

.. 50 (345) 

.. 5(34) 

.. 200-235 (93-113) 

27 (102) 

20 (18.9) 

15 (14.2) 

filters-qt {L) ......... . 

Bypass Oil Filter Orifice-in (mm) . 

Maximum Installation Angle . . . . . . . 

. 22 (20.8) 

. 0.062 (1.57) . 16' 

Emission Data 

CO-gmlhr ............ .. 

HC-gmlhr ............. . 

NO,-gmlhr ........ . 

S02-gmihr ........ . 

Smoke-Bosch Number . 

Noise-dB (A)@ 1m. 

Ref.: E4PR-1041-52-1 

All values at rated speed and power with 

. . 1030 

. . 60 

. . 1550 

. . 245 

. . 1.5 

. . 101 

standard engine hardware unless otheiWise noted. 

Cooling System 

Engine Heat Rejection-Btu/min {kW) . 

Engine Radiated Heat-Btu/min (kW) .. 

Fresh Water Flow-gal/min {Um1n) ... 

Raw Water Flow-gal/min (Umin) . . . . 

Thermostat 

Start to Open-'F ('C) . . .... 

Fully Qpen-'F ("C) . . . . . . . . . 

Maximum Water Pump Inlet Restriction 

Fresh Water-in Hg (kPa) . . . . . 

Raw Water-In Hg (kPa) . . . . . . 

4540 (79.8) 

790 (13.9) 

57.5(218) 

47.0 (254) 

173 (78) 

186(86) 

. 3.0 (10.2) 

. 5.0 (17.0) 

Max. Raw Water Pump Pressure 

lbfiin2 (kPa) . . . . . . . . . . . . . 10.0 (69.0) 

Fresh Water Capacity-qt (L) . . . . . . 24 (22.7) 

Minimum Pressure Cap-lbfi1n2 (kPa) . . . 7.0 (48.3) 

Maximum Coolant Pressure {Exclusive 

of Pressure Cap)-lbfiin2 (kPa) . . . . . Not Available 

Maximum Top Tank Temperature-'F ("C) 200 (93) 

Minimum Top Tank Temperature-'F (C) 160 (71) 

Minimum Coolant Fill Rategal/min (Uminl ....... . 

Suggested Raw Water Pipe Size 

in (mm) ........... . 

Suggested Sea Strainer Size 

3.0 (11.4) 

2.5 {63.5) 

Simplex-in (mm) . . . . . . . . . . . . 3.0 (76) 

Duplex-in (mm) . . . . . . . . . . 4.0 (102) 

Maximum Pressure Drop thru Keel Cooler 

lbf/1n2 (kPa) . . . . . . . . . 2.5 (17.2) 

Air System 

Maximum Allowable Temperature Rise 

(Outside Air to Engine lnlet)-'F ("C) . 30 (16.7) 

Air Intake Restriction Maximum Limit 

Dirty Air Cleaner-in H 0 {kPa) . . . . 

Clean Air Cleaner-in 0 (kPa) .. . Engine Air Flow-ft3Jmin (m3Jmin) ... . 

Engine Air Box/Manifold Pressure25 {6.2~ 16 (4.0 

440 (1 .5) 

in Hg (kPa) . . . . . . . . . . . . . . . 10.0 (33.8) 

Recommended Intake Pipe Dia.-in {mm) . 5.0 (127) 

Sug~ested Min. Engine Room Vent Area 

in (cm2) 

Max. Engine Room Depression 

0.2 in H~ ....... . 

Exhaust System 

Exhaust Flow-ft3Jmin (m3Jmin) .. 

Exhaust Temperature-'F ("C) . 

Maximum Allowable Back 

Pressure-in Hg (kPa) . . . .. 

Recommended Exhaust Pipe Dia. 

Single-in (mm) . . . . . . 

Dual-in (mm) . . . . . . 

Electrical System 

Recommended Battery Capacity 

(CCA@ O'F) 

12 Volt System 

Above 32'F (O'C)-A . . .. 

Below 32'F (O'C)-A . . .. 

24 Volt System 

Above 32'F (O'C)-A . . . . . 

Below 32'F {O'C)-A ..... 

Maximum Allowable Resistance of 

Starting Circuit 

12 volt system-ohm . 

24 volt system-ohm . 

Performance Data 

Power Output-bhp (kW) . 

Power Output-shp (kW) . Rated Load Speed-rimin . 

BMEP-Ibfiin2 (kPa) . . . . 

Friction Power 

Rated Speed-fhp (kW) 

Engine 

42 (273) 

1020 (28.9) 

790 (421) 

4.5 (15.2) 

3.5 (89) 

Not Applicable 

950 

1250 

475 

625 

. 0.0012 

0.002 

140 {204) 

. 135 (101) . 2100 

. 93.1 (642) 

. 56 (42) 

Speed Power Fuel BSFC 

r/min bhp (kW) 

Power 

shp (kW) !Jalihr lbibhp hr 

(llter/hr) (gikW hr) 

2100 

2000 

1800 

1500 

1200 

140 (104) 

137 (102) 

128 (95.3) 

110 (82.1) 

133 (100) 

130 !97) 122 91) 

7.7 (29.1) .384 (234) 

7.5 !28.2l .382 (232) 

6.9 26.2 

105 78) 

.379 (231l 

6.1 (22.9l .384 (234 

89 (66.3) 85 (63) 5.1 (19.2 .399 (242) 

Engine 

Speed 

r/min 

2100 

2000 

1800 

1500 

1200 

Prop 

Load 

shp (kW) 

135 (101! 117 (87 

85 t3) 49 37l 

25 19 

CURVE NO. E4-1042-52-3 

DATE: 7-17-69 

REVJOATE: 316-29-89 

SHT.20F 4 

Prop 

Fuel 

!Jalihr 

(llter/hr) 

7.7?9.1! 6.6 25.1 

4.9 (18.5) 

3.0 (11.5) 

1.8 (~.8) 

Prop 

BSFC 

lbibhp hr 

(gikw hr) 

.384 (234) 

.377 (229) 

.376 (229) 

.394 !239) .430 262) 
_D_E_T_R_O_I_T_~-o!-~-~-A~-,~-- © 4-71 

Marine 

Rating: Intermittent 

140 BHP@ 2100 RPM 

135 SHP@ 2100 RPM 

Injector: N60 

ENGINE PERFORMANCE CURVE 

I I I I I 

140 BHP 

140 (104 kW) ~ ... I I I I I 

~ I"""' ~ ..., 135 SHP 

'Jt.~ ~ ~ __. .... , (101 kW) 

120 e~~ ~~"""" ..... J ~~~ .. ~ ~ , .... ~~~~~ I 

~ .. ~ ~~ ~~\.e , Q) 100 ;:: l" " I~ Power- 0 

a. ~ ~ ~ " Propeller Load Q) [..,11 I 

Ill 

.. I~ 80 0 ~\ ::t 

Q) 

~ 'f' 

.. 

ca , 60 en " , 

, 

40 , 

..,., 

t"\l\\0" ... ~~ "su L.ollll 

.,_ ~ , ~ fue\ co ,...,., ., 

20 ---~ , ~o.~~~l"' I"""" , 

., ..... ..... ~., Fuel-

""' , Propeller Load 

~ " ~ 

.... ~ , """" 

""""" 

1200 1400 1600 1800 2000 2200 2400 

Engine Speed-RPM 

ACCESSORIES: ALLISON M GEAR, RAW WATER PUMP, ALTERNATOR 12V42A 

8 

6 

a: 

J: 

:::. 

~ 4 CJ I 

-; 

;:, 

Ll. 

2 

0 

Air Intake Restriction · in. H2 0 (kPa) .. 10 (2.5) Exhaust Back Pressure · in. H20 (kPa) .. 15 (3. 7) 

• Power output guaranteed within 5% at SAE J1228 conditions· 

Ce#~ Cu'rve No. n•F (25.C) air inlet temperature; 29.31 in. Hg (99kPa) dry barometer; 

1 oo•F (39.C) fuel inlet temperature (.853 specific gravity at so•F). E4-1 042-52-3 

Power rated in accordance with NMMA Procedure. Date: 7-17-69 • Conversion factors: Power: kW = bhp x 0.746 

Fuel· L'hr = gal'hr x 3.785 Rev./Date: 3/6-29-89 

• Values are denved from currently available data and subject to change Sht. 1 of 4 

w1thout notice.