Diesel Truck Engine
PERFORMANCE CURVES
1350 1250 1150 1050 950 850 750 650 360
C-10
305 hp
1150 lb-ft @ 1200 rpm Peak Torque
Power bhp
Shown with Optional Equipment
Torque lb-ft
330 300 270 240 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100
Engine Speed rpm
CATERPILLAR ENGINE SPECIFICATIONS
Borein (mm) . . . . . . . . . . . . . . . . . . . . . . 4.9 (125) Strokein (mm) . . . . . . . . . . . . . . . . . . . . . 5.5 (140) Displacementcu in (L) . . . . . . . . . . . . . 629 (10.3) Aspiration . . . . . . . . . . Turbocharged for ATAAC1 Rotation (from flywheel end) . . Counterclockwise Cooling System 2  gal (L) . . . . . . . . . . . . 2.7 (10.2) Lube Oil System (refill) gal (L) . . . . . . . . 9.4 (36) Weight, Net Dry (approx)lb (kg) with standard equipment . . . . . . . . . 2050 (932)
ENGINE RETARDATION
Engine Brake Performance  hp
500 400 300 200 100
bl T
Li it
1100 1300 1500 1700 1900 2100 2300
Engine Speed rpm
Data provided by Jacobs  Vehicle Systems for Model 310A.
PERFORMANCE DATA
Operating Range (rpm) . . . . . . . . . . . . . 1200-2100 Maximum Engine rpm . . . . . . . . . . . . . . . . . . . 2100 Advertised hp (kW) . . . . . . . . . . . . . . . . . . 305 (228) Governed Speed  rpm . . . . . . . . . . . . . . . . . 2100 Max hp @ 1800 rpm (kW) . . . . . . . . . . . . 320 (239) Peak Torque  lb-ft (Nm) . . . . . . . . . 1150 (1559) Peak Torque  rpm . . . . . . . . . . . . . . . . . . . . . 1200 Torque rise (%) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Altitude Capability  ft (m) . . . . . . . . 7500 (2288)
SIMULATED VEHICLE PERFORMANCE
MPG (TOA) Simulated Trip Fuel Economy 8.0
3.90:1
7.0
4.10:1 3.90:1 4.10:1
6.0 55 Cruise Speed mph Transmission: 10 Speed (0.74 O.D.) Rear Axle Ratios: 4.10:1  Performance 3.90:1  Balanced
65
Simulated Truck Spec C-10 305 hp
Semi-Van 8.0' x 13.5' Full Aero Package 275/80R 22.5 LP GVW: 78 000 lbs
1 2
Air-to-Air AfterCooling Engine only. Capacity will vary with radiator size and use of cab heater. 3 @ 65 mph balanced
C-10
STANDARD EQUIPMENT
Crankcase breather Electronic control module Electronic data link, ATA/SAE Electronically controlled unit injector fuel system Fuel  spin-on filter, priming and transfer pumps Gear driven jacket water pump Governor  full-range electronically controlled Hydraulic steering pump drive, SAE A Lifting eyes Lubricating  cooler, right hand filler, full flow filter, gear-driven pump, front or rear sump pan Turbocharger
DIESEL TRUCK ENGINE  305 hp
ELECTRONIC FEATURES
s Electronic self-diagnostics s Electronically tabulated total fuel consumption, hours and miles s Electronically tabulated total idle time s Battery backup s Real time clock s Quick stop recorder s Fleet information software (FIS) capability s User-selectable, reprogrammable vehicle operating parameters  vehicle mph speed limiting, engine rpm speed limiting, cruise control, intermediate gears and low gear limits, geardown protection, PTO vehicle mph speed limit, PTO engine rpm speed limit, programmable idle rpm speed, idle shutdown timer, PTO ramp rate, top engine rpm limit, ambient temperature idle control
ACCESSORY EQUIPMENT
Air compressor, gear driven, 13, 13.2, 16.5, or 31 cfm Alternator, 12 Volt, 105 Ampere Dry charge coolant conditioner Fan drive mounting bracket Flywheel and SAE No. 1 housing Front engine supports Jacobs engine brake Model 310A Lubricating oil filter, bypass spin-on or centrifugal type Rear power takeoff (1.31:1) SAE J1939 data link Starting, 12 Volt electric motor, ether starting aid
GEARING CONSIDERATIONS
Caterpillar  C-10 Air-to-Air Aftercooled (ATAAC) Truck Engines offer a wide operating range and high torque rise which promotes the use of transmissions with fewer gears. Even with this built-in feature, heavy/specialty haulers must remember their trucks should be geared to achieve the appropriate compromise between startability and desired road speed. Typical loads of 80 000 Ib or less are less affected by improper drive train specing than are heavy haulers. In general, either application shares one similar recommendation  gear fast/run slow is essential for good fuel consumption. If any of the following conditions are present, special attention should be given to proper transmission and axle specifications. A complete Caterpillar Truck Engine Pro analysis is available from your local Caterpillar or truck dealer. 1. Poor road surface 2. Adverse grades  8% plus 3. GVW in excess of 80 000 Ib For the best balance of performance and fuel economy on the C-10, spec axle ratios and tire sizes to obtain: 1500 rpm @ 60 mph Subject to the following: Maximum recommended engine speed at cruise  1700 rpm Minimum recommended engine speed at 55 mph cruise speed  1400 rpm
The International System of Units (SI) is used in this publication.  1997 Caterpillar Inc. All rights reserved.
DIMENSIONS
49.75 in. 1263.7 mm 50.6 in. 1285.3 mm 35.68 in. 906.4 mm
40.88 in. 1038.3 mm 15.8 in. 402.3 mm
RATING DEFINITIONS AND CONDITIONS
Performance is based on SAE J1349 standard conditions of 29.61 in. Hg (100 kPa) and 77 F (25 C). Fuel consumption is based on fuel oil having an LHV of 18 390 Btu/lb (42 780 kJ/kg) and weighing 7.001 lb/U.S. gal (839 g/L). The curves shown are for a standard engine without fan, but equipped with air compressor and fuel, lubricating oil and jacket water pumps. Additional ratings may be available for specific customer requirements. Consult your Caterpillar representative for details.
Materials and specifications are subject to change without notice. LEHT7887 Supersedes LEHT6092
Printed in U.S.A.