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Doosan DE12TIS Engine

General Technical Data

Engine Specifications

Engine Model ............... Doosan DE12TIS
Engine Type ............... 4-cycle inline 6-cylinder direct injection water-cooled diesel
Number of Cylinders ............... 6
Cylinder Arrangement ............... In-line vertical
Engine Bore, in (mm) ............... 4.84 (123.0)
Engine Stroke, in (mm) ............... 6.10 (155.0)
Displacement, cu.in (L) ............... 674.37 (11.051)
Rated Engine Power, hp (kW) ............... 260-340 (191-250)
Rated Engine Speed, rpm ............... 1900-2100
Peak Torque ............... 1085-1422 Nm (800-1049 lb-ft) at 1260-1400 rpm
Idle Speed ............... 600-650 rpm
Aspiration Type ............... Turbocharged and Intercooled
Operating Speed ............... 2000 rpm
Compression Ratio ............... 17.1:1
Firing Order ............... 1-5-3-6-2-4
Cylinder Block Type ............... Cast iron with replaceable dry liners
Cylinder Head Type ............... Cast iron individual / multiple configurations
Lubrication System ............... Full forced pressure feed circulation type
Oil Pump Type ............... Gear-driven rotary type pump unit assembly
Oil Filter Type ............... Full-flow cartridge spin-on paper element
Cooling System ............... Liquid water-cooled forced circulation loop
Water Pump Type ............... Belt-driven centrifugal impeller type pump unit
Air Cleaner Type ............... Dry dual-element heavy-duty filtration assembly
Starting System ............... Electric Starter motor system installation
Electrical System ............... 24V system voltage layout arrangement

Fuel System

Injection Pump Type ............... Bosch RLD-J mechanical type inline pump line
Governor Type ............... Mechanical electronic multi-regulator assembly control unit
Feed Pump Type ............... Mechanical piston type fuel transfer feed system
Injection Nozzle Type ............... Multi-hole type high precision distribution tip nozzle
Nozzle Hole Configuration ............... 5 holes, diameter 0.29 mm (0.0114 in)
First Opening Pressure, psi (bar) ............... 2275 (156.9)
Second Opening Pressure, psi (bar) ............... 3129 (215.7)
Fuel Filter Type ............... Full-flow spin-on cartridge filtration media cylinder
Fuel Injection Timing ............... 1 degree BTDC plus minus 0.5 degrees
Fuel Supply Pressure, psi (bar) ............... 26.1-34.8 (1.8-2.4)
Maximum Fuel Suction Head, ft (m) ............... 6.56 (2.0)
Fuel Return Line Flow Rate, gph (L/h) ............... 18.5-23.8 (70.0-90.0)
Recommended Fuel Grade ............... Ultra-low sulfur diesel fuel oil classification standards

Dimensions and Weight

Engine Length, in (mm) ............... 51.8 (1315)
Engine Width, in (mm) ............... 34.3 (870)
Engine Height, in (mm) ............... 43.1 (1095)
Dry Weight, lbs (kg) ............... 2160 (980)
Wet Weight, lbs (kg) ............... 2250 (1020)

Maintenance Data

Service Information

Compression Pressure (Standard), psi (bar) ............... 398.2 (27.5)
Compression Pressure (Limit), psi (bar) ............... 341.3 (23.5)
Oil Pressure at Idle Speed, psi (bar) ............... 14.2-21.3 (1.0-1.5)
Oil Pressure at Maximum Speed, psi (bar) ............... 42.6-78.2 (3.0-5.5)
Thermostat Opening Temperature, F (C) ............... 181.4 (83.0)
Thermostat Fully Open Temperature, F (C) ............... 203.0 (95.0)
Maximum Allowable Coolant Temp, F (C) ............... 217.4 (103.0)
Intake Valve Clearance (Cold), in (mm) ............... 0.0118 (0.30)
Exhaust Valve Clearance (Cold), in (mm) ............... 0.0118 (0.30)

Engine Oil and Coolant

Engine Oil Type .................. SAE 10W-40, 15W-40
API Service Classifications ......................... CH-4 or CG-4
Engine Oil Capacity (Max Level), gal (L) ............... 4.49 (17.0)
Engine Oil Capacity (Min Level), gal (L) ............... 3.70 (14.0)
Total Engine Oil Capacity, gal (L) ............... 5.55 (21.0)
Coolant Fluid Capacity, gal (L) ............... 5.02 (19.0)

Service Intervals

Change engine oil ............... Every 250 hours
Replace oil filter ............... Every 250 hours
Replace fuel filters ............... Every 400 hours
Clean air filter ............... Every 200 hours
Replace air filter ............... Every 400 hours
Change coolant ............... Every 2000 hours
Valve-lash adjustment ............... Every 1000 hours
Check fuel system ............... Every 1000 hours
Compression test ............... Every 1000 hours
Belt inspection ............... Every 100 hours

Service Specifications

Cylinder Liner Inside Diameter, in (mm) ............... 4.8425-4.8433 (123.000-123.022)
Cylinder Liner Wear Limit Max, in (mm) ............... 4.8504 (123.200)
Cylinder Liner Roundness Limit, in (mm) ............... 0.00078 (0.020)
Main Bearing Journal Diameter, in (mm) ............... 3.7783-3.7791 (95.966-95.988)
Main Bearing Clearance, in (mm) ............... 0.00283-0.00559 (0.072-0.142)
Connecting Rod Journal Diameter, in (mm) ............... 3.2664-3.2672 (82.966-82.988)
Connecting Rod Clearance, in (mm) ............... 0.00193-0.00468 (0.049-0.119)
Crankshaft End Play, in (mm) ............... 0.0059-0.0126 (0.150-0.320)
Piston Skirt Outside Diameter, in (mm) ............... 4.8366-4.8374 (122.850-122.870)
Piston to Cylinder Liner Clearance, in (mm) ............... 0.0051-0.0067 (0.130-0.172)
Piston Pin Outside Diameter, in (mm) ............... 1.7714-1.7718 (44.995-45.005)
Piston Pin to Small End Bushing Clearance, in (mm) ............... 0.00098-0.00173 (0.025-0.044)
Top Ring Side Clearance, in (mm) ............... 0.0047-0.0063 (0.120-0.160)
Second Ring Side Clearance, in (mm) ............... 0.0027-0.0043 (0.070-0.110)
Oil Ring Side Clearance, in (mm) ............... 0.0015-0.0029 (0.030-0.075)
Top Ring End Gap, in (mm) ............... 0.0157-0.0236 (0.400-0.600)
Second Ring End Gap, in (mm) ............... 0.0197-0.0276 (0.500-0.700)
Oil Ring End Gap, in (mm) ............... 0.0118-0.0197 (0.300-0.500)
Cylinder Block Deck Flatness Limit, in (mm) ............... 0.00394 (0.100)
Cylinder Head Flatness Distortion Limit, in (mm) ............... 0.00787 (0.200)
Intake Valve Stem Outside Diameter, in (mm) ............... 0.3524-0.3531 (8.950-8.970)
Exhaust Valve Stem Outside Diameter, in (mm) ............... 0.3512-0.3520 (8.920-8.940)
Intake Valve Stem to Guide Clearance, in (mm) ............... 0.00118-0.00236 (0.030-0.060)
Exhaust Valve Stem to Guide Clearance, in (mm) ............... 0.00236-0.00354 (0.060-0.090)
Intake Valve Seat Sinkage Depth, in (mm) ............... 0.0354-0.0472 (0.900-1.200)
Exhaust Valve Seat Sinkage Depth, in (mm) ............... 0.0354-0.0472 (0.900-1.200)
Camshaft Journal Outside Diameter, in (mm) ............... 2.3598-2.3606 (59.940-59.960)
Camshaft Journal Clearance, in (mm) ............... 0.00197-0.00425 (0.050-0.108)
Cam Lobe Height (Intake), in (mm) ............... 2.1850-2.1929 (55.500-55.700)
Cam Lobe Height (Exhaust), in (mm) ............... 2.2244-2.2323 (56.500-56.700)
Idler Gear Bushing Inside Diameter, in (mm) ............... 1.9685-1.9695 (50.000-50.025)
Idler Gear Shaft Outside Diameter, in (mm) ............... 1.9661-1.9671 (49.940-49.965)
Idler Gear Oil Clearance, in (mm) ............... 0.00138-0.00335 (0.035-0.085)

Tightening Torques

Cylinder Head Bolts (Initial Stage), lb-ft (Nm) ............... 44.25 (60.0)
Cylinder Head Bolts (Second Stage), deg ............... + 180
Cylinder Head Bolts (Final Stage), deg ............... + 150
Main Bearing Cap Bolts (Initial Stage), lb-ft (Nm) ............... 110.6 (150.0)
Main Bearing Cap Bolts (Second Stage), lb-ft (Nm) ............... 184.4 (250.0)
Main Bearing Cap Bolts (Final Stage), lb-ft (Nm) ............... 221.3 (300.0)
Connecting Rod Cap Bolts (Initial Stage), lb-ft (Nm) ............... 73.8 (100.0)
Connecting Rod Cap Bolts (Second Stage), lb-ft (Nm) ............... 110.6 (150.0)
Connecting Rod Cap Bolts (Final Stage), lb-ft (Nm) ............... 206.5 (280.0)
Flywheel Retaining Bolts Assembly, lb-ft (Nm) ............... 132.8 (180.0)
Crankshaft Damper Pulley Hub Bolts, lb-ft (Nm) ............... 147.5 (200.0)
Camshaft Thrust Plate Retaining Bolts, lb-ft (Nm) ............... 22.1 (30.0)
Camshaft Gear Center Locking Bolt, lb-ft (Nm) ............... 66.4 (90.0)
Idler Gear Hub Mounting Fasteners, lb-ft (Nm) ............... 47.9 (65.0)
Rocker Arm Shaft Bracket Holding Bolts, lb-ft (Nm) ............... 27.3 (37.0)
Valve Lash Adjuster Nut Lock, lb-ft (Nm) ............... 18.4 (25.0)
Cylinder Head Valve Cover Clamping Screws, lb-ft (Nm) ............... 8.8 (12.0)
Oil Pan Peripheral Structural Screws, lb-ft (Nm) ............... 16.2 (22.0)
Oil Pan Central Drain Plug Bolt, lb-ft (Nm) ............... 59.0 (80.0)
Exhaust Manifold Structural Stud Nuts, lb-ft (Nm) ............... 36.9 (50.0)
Intake Manifold Air Channel Cover Bolts, lb-ft (Nm) ............... 24.3 (33.0)
Turbocharger Exhaust Inlet Flange Nuts, lb-ft (Nm) ............... 44.3 (60.0)
Fuel Injection Pump Flange Coupling Bolts, lb-ft (Nm) ............... 33.2 (45.0)
Fuel Injection Pump Base Mounting Fasteners, lb-ft (Nm) ............... 33.2 (45.0)
High Pressure Fuel Line Union Nuts, lb-ft (Nm) ............... 22.1 (30.0)
Fuel Injector Retaining Bracket Nuts, lb-ft (Nm) ............... 25.8 (35.0)
Fuel Feed Pump Delivery Valve Holder, lb-ft (Nm) ............... 29.5 (40.0)
Fuel Filter Bracket Structural Base Bolts, lb-ft (Nm) ............... 24.3 (33.0)
Oil Cooler Housing Engine Block Fasteners, lb-ft (Nm) ............... 31.0 (42.0)
Water Pump Assembly Structural Base Bolts, lb-ft (Nm) ............... 16.2 (22.0)
Thermostat Housing Main Cover Screws, lb-ft (Nm) ............... 16.2 (22.0)
Cooling Fan Blade Assembly Spider Screws, lb-ft (Nm) ............... 25.8 (35.0)
Alternator Pivot Mount Structural Pivot Bolt, lb-ft (Nm) ............... 55.3 (75.0)
Alternator Belt Tension Adjuster Lock Bolt, lb-ft (Nm) ............... 18.4 (25.0)
Starter Motor Structural Flange Ring Nuts, lb-ft (Nm) ............... 59.0 (80.0)
Air Compressor Drive Gear Retaining Nut, lb-ft (Nm) ............... 110.6 (150.0)
Power Steering Hydraulic Pump Holding Bolts, lb-ft (Nm) ............... 33.2 (45.0)
Flywheel Housing Structural Block Link Bolts, lb-ft (Nm) ............... 81.1 (110.0)
Front Timing Gear Case Cover Cap Screws, lb-ft (Nm) ............... 16.2 (22.0)
Oil Pump Assembly Housing Screws, lb-ft (Nm) ............... 24.3 (33.0)
Oil Suction Tube Flange Internal Bolts, lb-ft (Nm) ............... 16.2 (22.0)
Piston Cooling Oil Jet Nozzle Core Bolts, lb-ft (Nm) ............... 22.1 (30.0)
Crankcase Breather Separator Support Screws, lb-ft (Nm) ............... 7.4 (10.0)
Air Intake Glow Plug, lb-ft (Nm) ............... 33.2 (45.0)
Coolant Temperature Gauge Sender Terminal, lb-ft (Nm) ............... 22.1 (30.0)
Engine Oil Pressure Switch, lb-ft (Nm) ............... 18.4 (25.0)
Fuel Overflow Valve Return Line Banjo Bolt, lb-ft (Nm) ............... 25.8 (35.0)

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• Doosan Engines Specs
  
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