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Shibaura N3LDI Engine

General Technical Data

Engine Specifications

Engine Model ............... Shibaura N3LDI
Engine Type ............... 4-cycle inline 3-cylinder direct injection liquid-cooled diesel
Number of Cylinders ............... 3
Cylinder Arrangement ............... In-line
Engine Bore, in (mm) ............... 3.31 (84.0)
Engine Stroke, in (mm) ............... 3.94 (100.0)
Displacement, cu.in (L) ............... 101.4 (1.662)
Rated Engine Power, hp (kW) ............... 30.0 (22.4)
Rated Engine Speed, rpm ............... 2600
Peak Torque, lb-ft (Nm) ............... 74.5 (101.0) at 1600 rpm
Low Idle Speed, rpm ............... 900-1000
High Idle Speed, rpm ............... 2750-2850
Aspiration Type ............... Naturally Aspirated
Compression Ratio ............... 23.5:1
Firing Order ............... 1-3-2
Combustion Chamber ............... Direct injection bowl-in-piston configuration
Direction of Rotation ............... Counter-clockwise viewed from flywheel end
Cylinder Liner Type ............... Parent bore integral cast iron block
Camshaft Drive Mechanism ............... Gear train driven
Valve Train Layout ............... Overhead valve configuration
Valves Per Cylinder ............... 2
Crankcase Ventilation ............... Closed breather system layout
Cylinder Block Type ............... High-strength cast iron
Cylinder Head Type ............... Single-piece cast iron
Lubrication System ............... Forced lubrication via trochoid pump
Oil Pump Type ............... Gear-driven trochoid design
Oil Filter Type ............... Full-flow, spin-on cartridge type
Cooling System ............... Forced liquid circulation with radiator
Water Pump Type ............... Belt-driven centrifugal impeller
Air Cleaner Type ............... Dry element dual-stage
Emission Certification ............... Tier 4 Final compliant
Exhaust Gas Recirculation System ............... Cooled EGR integrated
Exhaust Aftertreatment ............... Diesel Oxidation Catalyst
Starting System ............... Electric motor starter
Electrical System, V ............... 12
Alternator Capacity, A ............... 40-55

Fuel System

Fuel Injection Pump Type ............... In-line cassette style plug-in pump
Fuel Injection Pump Manufacturer ............... Bosch Bosch-licensed design
Fuel Injection Timing, deg BTDC ............... 14.0-16.0
Fuel Injector Nozzle Type ............... Multi-hole nozzle configuration
Fuel Injector Opening Pressure, psi (MPa) ............... 2842-2987 (19.6-20.6)
Fuel Transfer Pump Type ............... Mechanical diaphragm type pump
Fuel Transfer Pump Pressure, psi (kPa) ............... 2.9-5.1 (20.0-35.0)
Fuel Filter Type ............... Spin-on element with integral water separator
Fuel Filter Micron Rating, microns ............... 5.0-10.0
Maximum Fuel Inlet Temperature, deg F (deg C) ............... 140 (60)
Maximum Fuel Return Line Restriction, in Hg (kPa) ............... 5.9 (20.0)
Fuel Leak-off System Layout ............... Return line directed to fuel tank
Injection Nozzle Spray Angle, deg ............... 150
Nozzle Hole Diameter, in (mm) ............... 0.008 (0.20)
Number of Nozzle Holes ............... 5
Fuel Injection Pipe Outer Diameter, in (mm) ............... 0.24 (6.0)
Fuel Injection Pipe Inner Diameter, in (mm) ............... 0.08 (2.0)
Fuel System Priming Mechanism ............... Manual priming lever on transfer pump
Governor Type ............... Mechanical centrifugal mechanical flyweight
Governor Spring Type ............... Single variable speed tension type
Injection Pump Control Rack Stroke, in (mm) ............... 0.47 (12.0)
Fuel Shut-off Mechanism ............... 12V Electric solenoid actuator
Cold Start Assist Device ............... Glow plugs integrated per cylinder
Glow Plug Rated Voltage, V ............... 11.0
Glow Plug Current Draw, A ............... 10.0 per plug
Maximum Allowable Fuel System Air Content, % ............... 0.0
Recommended Fuel Grade ............... Ultra-low sulfur diesel ASTM D975 No. 2-D
Minimum Fuel Cetane Number ............... 45
Fuel Specific Gravity, g/cm3 ............... 0.835-0.845

Dimensions and Weight

Overall Engine Length, in (mm) ............... 21.8 (554.0)
Overall Engine Width, in (mm) ............... 18.9 (480.0)
Overall Engine Height, in (mm) ............... 25.4 (645.0)
Dry Weight base config, lbs (kg) ............... 342.0 (155.0)
Wet Weight with fluids, lbs (kg) ............... 370.0 (168.0)

Maintenance Data

Service Information

Compression Pressure (Standard), psi (MPa) ............... 426 (2.94)
Compression Pressure (Minimum), psi (MPa) ............... 355 (2.45)
Oil Pressure at Rated Speed, psi (kPa) ............... 42.6-56.8 (294.0-392.0)
Oil Pressure at Low Idle, psi (kPa) ............... 14.2 (98.0)
Thermostat Relief Valve Opening Pressure, psi (kPa) ............... 12.8 (88.3)
Radiator Cap Pressure Rating, psi (kPa) ............... 12.8 (88.3)
Maximum Oil Temperature, F (C) ............... 248 (120)
Thermostat Opening Temperature, F (C) ............... 160-180 (71-82)
Thermostat Full Open Temperature, F (C) ............... 194 (90)
Fan Belt Deflection under 22 lbs force, in (mm) ............... 0.28-0.35 (7.0-9.0)
Intake Valve Clearance (Cold), in (mm) ............... 0.008 (0.20)
Exhaust Valve Clearance (Cold), in (mm) ............... 0.008 (0.20)

Engine Oil and Coolant

Engine Oil Type .................. SAE 10W-30, SAE 15W-40
API Service Classifications ......................... CJ-4 or CK-4
Engine Oil Capacity with Filter, qt (L) ............... 6.1 (5.8)
Engine Oil Capacity without Filter, qt (L) ............... 5.5 (5.2)
Cooling System Capacity, qt (L) ............... 2.9 (2.7)

Service Intervals

Change engine oil ............... Every 250 hours
Replace oil filter ............... Every 250 hours
Replace fuel filter ............... Every 500 hours
Service air filter ............... Every 100 hours
Replace air filter ............... Every 1000 hours
Change coolant ............... Every 2000 hours
Valve-lash adjustment ............... Every 500 hours
Check fuel system ............... Every 1000 hours
Compression test ............... Every 1000 hours
Clean radiator fin ............... Every 100 hours
Belt inspection ............... Every 100 hours

Service Specifications

Cylinder Block Bore Inside Diameter, in (mm) ............... 3.3071-3.3081 (84.000-84.025)
Cylinder Block Bore Roundnesst, in (mm) ............... 0.0004 (0.010)
Cylinder Block Top Surface Distortion, in (mm) ............... 0.0020 (0.050)
Crankshaft Main Journal Diameter, in (mm) ............... 2.6764-2.6772 (67.982-68.000)
Crankshaft Main Bearing Clearance, in (mm) ............... 0.0015-0.0033 (0.039-0.084)
Crankpin Journal Diameter, in (mm) ............... 2.0465-2.0472 (51.982-52.000)
Crankpin Bearing Oil Clearance, in (mm) ............... 0.0014-0.0033 (0.035-0.085)
Crankshaft End Play, in (mm) ............... 0.0020-0.0071 (0.050-0.180)
Connecting Rod Small End Bushing I.D, in (mm) ............... 1.1031-1.1039 (28.020-28.040)
Connecting Rod Small End Side Clearance, in (mm) ............... 0.0008-0.0019 (0.020-0.048)
Connecting Rod Big End Bore I.D, in (mm) ............... 2.1654-2.1661 (55.000-55.018)
Piston Skirt Outer Diameter, in (mm) ............... 3.3043-3.3051 (83.930-83.950)
Piston to Cylinder Wall Clearance, in (mm) ............... 0.0020-0.0037 (0.050-0.095)
Piston Pin Bore Inside Diameter, in (mm) ............... 1.1024-1.1027 (28.002-28.010)
Piston Pin Outer Diameter, in (mm) ............... 1.1021-1.1024 (27.994-28.000)
Piston Pin to Piston Pin Bore Clearance, in (mm) ............... 0.0001-0.0006 (0.002-0.016)
Piston Pin to Small End Bushing Clearance, in (mm) ............... 0.0004-0.0013 (0.010-0.034)
Top Ring Side Clearance, in (mm) ............... 0.0024-0.0039 (0.060-0.100)
Second Ring Side Clearance, in (mm) ............... 0.0020-0.0035 (0.050-0.090)
Oil Ring Side Clearance, in (mm) ............... 0.0012-0.0028 (0.030-0.070)
Top Ring End Gap, in (mm) ............... 0.0079-0.0138 (0.200-0.350)
Second Ring End Gap, in (mm) ............... 0.0079-0.0138 (0.200-0.350)
Oil Ring End Gap, in (mm) ............... 0.0079-0.0157 (0.200-0.400)
Cylinder Head Flatness Limit Surface, in (mm) ............... 0.0020 (0.050)
Intake Valve Head Diameter, in (mm) ............... 1.34 (34.0)
Exhaust Valve Head Diameter, in (mm) ............... 1.18 (30.0)
Intake Valve Stem Outer Diameter, in (mm) ............... 0.2738-0.2744 (6.955-6.970)
Exhaust Valve Stem Outer Diameter, in (mm) ............... 0.2726-0.2732 (6.925-6.940)
Valve Guide Inside Diameter, in (mm) ............... 0.2756-0.2762 (7.000-7.015)
Intake Valve Stem to Guide Clearance, in (mm) ............... 0.0012-0.0024 (0.030-0.060)
Exhaust Valve Stem to Guide Clearance, in (mm) ............... 0.0024-0.0035 (0.060-0.090)
Intake Valve Sinkage, in (mm) ............... 0.0276-0.0374 (0.700-0.950)
Exhaust Valve Sinkage, in (mm) ............... 0.0276-0.0374 (0.700-0.950)
Valve Seat Angle, deg ............... 45
Valve Spring Free Length, in (mm) ............... 1.6929 (43.000)
Camshaft Journal Diameter (Front), in (mm) ............... 1.8492-1.8500 (46.970-46.990)
Camshaft Journal Diameter (Center), in (mm) ............... 1.8374-1.8382 (46.670-46.690)
Camshaft Journal Diameter (Rear), in (mm) ............... 1.8256-1.8264 (46.370-46.390)
Camshaft Journal Clearance, in (mm) ............... 0.0012-0.0035 (0.030-0.090)
Cam Height (Intake), in (mm) ............... 1.4390-1.4413 (36.550-36.610)
Cam Height (Exhaust), in (mm) ............... 1.4390-1.4413 (36.550-36.610)
Camshaft End Play, in (mm) ............... 0.0020-0.0059 (0.050-0.150)
Rocker Arm Shaft Outer Diameter, in (mm) ............... 0.4717-0.4724 (11.980-12.000)
Rocker Arm Bushing Inside Diameter, in (mm) ............... 0.4732-0.4740 (12.020-12.040)
Rocker Arm Bushing to Shaft Clearance, in (mm) ............... 0.0008-0.0024 (0.020-0.060)
Tappet Outer Diameter, in (mm) ............... 0.4711-0.4719 (11.965-11.985)
Tappet Bore in Cylinder Block, in (mm) ............... 0.4724-0.4735 (12.000-12.027)
Tappet to Cylinder Block Clearance, in (mm) ............... 0.0006-0.0024 (0.015-0.062)
Idler Gear Shaft Outer Diameter, in (mm) ............... 1.3366-1.3374 (33.950-33.970)
Idler Gear Bushing Inside Diameter, in (mm) ............... 1.3386-1.3396 (34.000-34.025)
Idler Gear Bushing to Shaft Clearance, in (mm) ............... 0.0012-0.0030 (0.030-0.075)

Tightening Torques

Cylinder Head Bolts (Step 1), lb-ft (Nm) ............... 25.3 (34.3)
Cylinder Head Bolts (Step 2), lb-ft (Nm) ............... 50.6 (68.6)
Cylinder Head Bolts (Step 3), lb-ft (Nm) ............... 72.3-79.6 (98.0-108.0)
Main Bearing Cap Bolts, lb-ft (Nm) ............... 39.8-44.9 (54.0-61.0)
Connecting Rod Cap Nuts, lb-ft (Nm) ............... 36.2-41.2 (49.0-56.0)
Flywheel Bolts, lb-ft (Nm) ............... 43.4-50.6 (59.0-68.6)
Crankshaft Pulley Center Bolt, lb-ft (Nm) ............... 83.2-94.0 (113.0-127.4)
Camshaft Thrust Plate Bolts, lb-ft (Nm) ............... 7.2-10.8 (9.8-14.7)
Rocker Arm Shaft Bracket Bolts, lb-ft (Nm) ............... 20.3-25.3 (27.5-34.3)
Valve Cover Cap Nuts, lb-ft (Nm) ............... 5.8-8.7 (7.8-11.8)
Timing Gear Case Cover Bolts, lb-ft (Nm) ............... 14.5-18.1 (19.6-24.5)
Idler Gear Shaft Lock Bolt, lb-ft (Nm) ............... 20.3-25.3 (27.5-34.3)
Oil Pan Mounting Bolts, lb-ft (Nm) ............... 7.2-10.8 (9.8-14.7)
Oil Pan Drain Plug, lb-ft (Nm) ............... 25.3-32.5 (34.3-44.1)
Oil Pump Assembly Bolts, lb-ft (Nm) ............... 7.2-10.8 (9.8-14.7)
Oil Pressure Switch Sensor, lb-ft (Nm) ............... 10.8-14.5 (14.7-19.6)
Fuel Injection Pump Delivery Valve Holders, lb-ft (Nm) ............... 28.9-32.5 (39.2-44.1)
Fuel Injection Pump Mounting Nuts, lb-ft (Nm) ............... 14.5-18.1 (19.6-24.5)
Fuel Injection Pump Drive Gear Nut, lb-ft (Nm) ............... 43.4-50.6 (59.0-68.6)
Fuel Injector Assembly into Cylinder Head, lb-ft (Nm) ............... 43.4-50.6 (59.0-68.6)
Fuel Injection Pipe Union Nuts, lb-ft (Nm) ............... 18.1-21.7 (24.5-29.4)
Fuel Leak-off Pipe Retaining Nuts, lb-ft (Nm) ............... 14.5-18.1 (19.6-24.5)
Glow Plugs Retaining Torque, lb-ft (Nm) ............... 10.8-14.5 (14.7-19.6)
Water Pump Mounting Bolts, lb-ft (Nm) ............... 14.5-18.1 (19.6-24.5)
Thermostat Housing Cover Bolts, lb-ft (Nm) ............... 14.5-18.1 (19.6-24.5)
Intake Manifold Mounting Bolts, lb-ft (Nm) ............... 14.5-18.1 (19.6-24.5)
Exhaust Manifold Mounting Bolts, lb-ft (Nm) ............... 18.1-21.7 (24.5-29.4)
Starter Motor Mounting Bolts, lb-ft (Nm) ............... 36.2-43.4 (49.0-59.0)
Alternator Mounting Pivot Bolt, lb-ft (Nm) ............... 36.2-43.4 (49.0-59.0)
Alternator Adjusting Strap Bolt, lb-ft (Nm) ............... 14.5-18.1 (19.6-24.5)
Exhaust Pipe Flange Nuts, lb-ft (Nm) ............... 21.7-28.9 (29.4-39.2)
Flywheel Housing Mounting Bolts, lb-ft (Nm) ............... 36.2-43.4 (49.0-59.0)
Oil Strainer Pickup Tube Bolt, lb-ft (Nm) ............... 7.2-10.8 (9.8-14.7)
Crankcase Breather Valve Cover Bolts, lb-ft (Nm) ............... 5.8-8.7 (7.8-11.8)

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• Shibaura N4LDI-T Specs
  

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