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Shibaura E673 Engine

General Technical Data

Engine Specifications

Engine Model ............... Shibaura E673
Engine Type ............... 4-cycle vertical inline overhead valve water-cooled diesel
Number of Cylinders ............... 3
Cylinder Arrangement ............... In-line vertical
Engine Bore, in (mm) ............... 2.64 (67.0)
Engine Stroke, in (mm) ............... 2.52 (64.0)
Displacement, cu.in (L) ............... 41.3 (0.676)
Rated Engine Power, hp (kW) ............... 12.5-14.5 (9.3-10.8)
Rated Engine Speed, rpm ............... 3000-3200
Peak Torque, lb-ft (Nm) ............... 25.8 (35.0) at 2000 rpm
Low Idle Speed, rpm ............... 900-1000
High Idle Speed, rpm ............... 3200-3350
Aspiration Type ............... Naturally Aspirated
Combustion Chamber ............... Swirl chamber type
Compression Ratio ............... 23.5:1
Firing Order ............... 1-2-3
Cylinder Block Material ............... High-grade cast iron
Cylinder Head Material ............... Alloy cast iron
Crankshaft Material ............... Forged steel carbon alloy
Number of Main Bearings ............... 4
Valves per Cylinder ............... 2 (1 intake, 1 exhaust)
Lubrication System ............... Forced pressure feed lubrication
Oil Pump Type ............... Trochoid rotor pump driven by crankshaft gear
Oil Filter Type ............... Full-flow cartridge spin-on element
Cooling System ............... Forced liquid circulation with centrifugal pump
Water Pump Type ............... Belt-driven centrifugal type
Thermostat Type ............... Wax pellet type with bypass valve
Air Cleaner Type ............... Dry element heavy duty filter
Starting System ............... Electric starter motor engagement
Electrical System ............... 12V
Alternator Capacity ............... 15-40A

Fuel System

Fuel Injection Pump Type ............... Bosch Bosch-type in-line mini pump unit
Fuel Injection Timing, deg BTDC ............... 20.0 +/- 1.0
Fuel Injector Nozzle Type ............... Throttle type nozzle structure
Governor Type ............... Mechanical centrifugal all-speed governor
Initial Injection Pressure, psi (MPa) ............... 1740.5 (12.0)
Fuel Transfer Pump Type ............... Mechanical diaphragm type pump assembly
Fuel Filter Type ............... Spin-on paper element cartridge filter unit
Fuel Feed Line Diameter, in (mm) ............... 0.187 (4.76)
Fuel Return Line Diameter, in (mm) ............... 0.125 (3.18)
Maximum Fuel Inlet Restriction, inHg (kPa) ............... 4.0 (13.5)
Maximum Fuel Return Restriction, inHg (kPa) ............... 6.0 (20.3)
Governor Spring Tension Standard, lb (kg) ............... 3.3 (1.5)
Injection Pump Plating Thickness, in (mm) ............... 0.0079 (0.20)
Injection Nozzle Spray Pattern Standard ............... Concentric straight spray cone
Fuel Tank Vent Venting Pressure, psi (kPa) ............... 0.43 (3.0)
Fuel System Bleeding Method ............... Manual via air bleed screw on filter bracket
Recommended Fuel Grade ............... Ultra-low sulfur diesel ASTM D975 No. 2-D

Dimensions and Weight

Overall Length, in (mm) ............... 17.9 (455)
Overall Width, in (mm) ............... 16.1 (410)
Overall Height, in (mm) ............... 20.1 (510)
Dry Weight, lbs (kg) ............... 179 (81)
Wet Weight, lbs (kg) ............... 194 (88)

Maintenance Data

Service Information

Standard Compression Pressure, psi (MPa) ............... 426.4 (2.94) at 300 rpm
Minimum Compression Pressure, psi (MPa) ............... 355.3 (2.45) at 300 rpm
Compression Variation Between Cylinders, psi (MPa) ............... 28.4 (0.20)
Oil Pressure at Low Idle, psi (MPa) ............... 14.5 (0.10)
Oil Pressure at Rated Speed, psi (MPa) ............... 43.5-58.0 (0.30-0.40)
Thermostat Opening Temperature, F (C) ............... 160.0 (71.0)
Thermostat Full Open Temperature, F (C) ............... 185.0 (85.0)
Cooling System Cap Pressure, psi (kPa) ............... 12.8 (88.3)
Intake Valve Clearance (Cold), in (mm) ............... 0.0079 (0.20)
Exhaust ValveClearance (Cold), in (mm) ............... 0.0079 (0.20)

Engine Oil and Coolant

Engine Oil Type .................. SAE 10W-30, SAE 15W-40
API Service Classifications ......................... CF, CF-4, or CG-4
Engine Oil Capacity with Filter, qt (L) ............... 3.17 (3.0)
Engine Oil Capacity without Filter, qt (L) ............... 2.85 (2.7)
Cooling System Capacity, qt (L) ............... 1.16 (1.1)

Service Intervals

Change engine oil ............... Every 100 hours
Replace oil filter ............... Every 200 hours
Replace fuel filter ............... Every 400 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 2000 hours
Clean radiator fin ............... Every 100 hours
Belt inspection ............... Every 100 hours

Service Specifications

Cylinder Block Bore Inner Diameter, in (mm) ............... 2.6378-2.6385 (67.000-67.019)
Cylinder Block Bore Max Wear Limit, in (mm) ............... 2.6457 (67.200)
Cylinder Block Bore Taper Vertical Limit, in (mm) ............... 0.00079 (0.020)
Cylinder Block Top Surface Flatness, in (mm) ............... 0.0019 (0.050)
Connecting Rod Small End Bushing I.D, in (mm) ............... 0.7485-0.7491 (19.013-19.028)
Connecting Rod Big End Bore I.D, in (mm) ............... 1.6929-1.6934 (43.000-43.015)
Crankpin Journal Diameter, in (mm) ............... 1.5740-1.5746 (39.982-39.994)
Connecting Rod Bearing Clearance, in (mm) ............... 0.0011-0.0025 (0.029-0.064)
Connecting Rod Side Play, in (mm) ............... 0.0039-0.0118 (0.100-0.300)
Crankshaft Main Journal Diameter, in (mm) ............... 1.8889-1.8895 (47.982-47.994)
Main Bearing Clearance, in (mm) ............... 0.0011-0.0027 (0.029-0.069)
Crankshaft Axial End Play, in (mm) ............... 0.0019-0.0068 (0.050-0.175)
Thrust Washer Thickness, in (mm) ............... 0.0768-0.0787 (1.950-2.000)
Piston Skirt Outer Diameter, in (mm) ............... 2.6358-2.6364 (66.950-66.965)
Piston to Cylinder Wall Clearance, in (mm) ............... 0.0013-0.0027 (0.035-0.069)
Piston Pin Bore Inner Diameter, in (mm) ............... 0.7480-0.7483 (19.000-19.008)
Piston Pin Outer Diameter, in (mm) ............... 0.7478-0.7480 (18.995-19.000)
Piston Pin to Piston Pin Bore Clearance, in (mm) ............... 0.0000-0.0005 (0.000-0.013)
Piston Pin to Small End Bushing Clearance, in (mm) ............... 0.0005-0.0013 (0.013-0.033)
Top Ring Groove Width, in (mm) ............... 0.0610-0.0618 (1.550-1.570)
Second Ring Groove Width, in (mm) ............... 0.0602-0.0610 (1.530-1.550)
Oil Ring Groove Width, in (mm) ............... 0.1189-0.1197 (3.020-3.040)
Top Ring Side Clearance, in (mm) ............... 0.0023-0.0039 (0.060-0.100)
Second Ring Side Clearance, in (mm) ............... 0.0019-0.0035 (0.050-0.090)
Oil Ring Side Clearance, in (mm) ............... 0.0007-0.0023 (0.020-0.060)
Top Ring End Gap, in (mm) ............... 0.0059-0.0118 (0.150-0.300)
Second Ring End Gap, in (mm) ............... 0.0059-0.0118 (0.150-0.300)
Oil Ring End Gap, in (mm) ............... 0.0078-0.0157 (0.200-0.400)
Cylinder Head Bottom Surface Flatness, in (mm) ............... 0.0019 (0.050)
Intake Valve Stem Outer Diameter, in (mm) ............... 0.2338-0.2344 (5.938-5.953)
Exhaust Valve Stem Outer Diameter, in (mm) ............... 0.2323-0.2329 (5.900-5.915)
Valve Guide Bushing Inner Diameter, in (mm) ............... 0.2362-0.2367 (6.000-6.012)
Intake Valve Stem to Guide Clearance, in (mm) ............... 0.0018-0.0029 (0.047-0.074)
Exhaust Valve Stem to Guide Clearance, in (mm) ............... 0.0033-0.0044 (0.085-0.112)
Intake Valve Sinking Recess Depth, in (mm) ............... 0.0256-0.0374 (0.650-0.950)
Exhaust Valve Sinking Recess Depth, in (mm) ............... 0.0256-0.0374 (0.650-0.950)
Valve Seat Angle, deg ............... 45.0
Valve Face Contact Width, in (mm) ............... 0.0551-0.0669 (1.400-1.700)
Valve Spring Free Lenght, in (mm) ............... 1.3780 (35.000)
Camshaft Journal Outer Diameter (Front), in (mm) ............... 1.5724-1.5732 (39.940-39.960)
Camshaft Journal Outer Diameter (Middle), in (mm) ............... 1.5331-1.5339 (38.940-38.960)
Camshaft Journal Outer Diameter (Rear), in (mm) ............... 1.4937-1.4945 (37.940-37.960)
Camshaft Bearing Inside Diameter (Front), in (mm) ............... 1.5748-1.5760 (40.000-40.030)
Camshaft Journal Oil Clearance, in (mm) ............... 0.0015-0.0035 (0.040-0.090)
Intake Cam Lobe Height, in (mm) ............... 1.0425-1.0441 (26.480-26.520)
Exhaust Cam Lobe Height, in (mm) ............... 1.0425-1.0441 (26.480-26.520)
Rocker Arm Shaft Outer Diameter, in (mm) ............... 0.4713-0.4720 (11.972-11.984)
Rocker Arm Bushing Inner Diameter, in (mm) ............... 0.4724-0.4731 (12.000-12.018)
Rocker Arm Bushing to Shaft Clearance, in (mm) ............... 0.0006-0.0018 (0.016-0.046)
Tappet Lifter Outer Diameter, in (mm) ............... 0.8642-0.8650 (21.950-21.971)
Tappet Guide Hole Inner Diameter, in (mm) ............... 0.8661-0.8670 (22.000-22.021)
Tappet to Block Guide Hole Clearance, in (mm) ............... 0.0011-0.0028 (0.029-0.071)

Tightening Torques

Cylinder Head Bolts, lb-ft (Nm) ............... 25.1-28.8 (34.0-39.0)
Connecting Rod Cap Nuts, lb-ft (Nm) ............... 23.6-26.6 (32.0-36.0)
Crankshaft Main Bearing Bolts, lb-ft (Nm) ............... 18.4-22.1 (25.0-30.0)
Flywheel Mounting Bolts, lb-ft (Nm) ............... 43.5-47.2 (59.0-64.0)
Crankshaft Front Pulley Nut, lb-ft (Nm) ............... 72.3-86.8 (98.0-118.0)
Rocker Arm Shaft Support Bolts, lb-ft (Nm) ............... 14.5-18.4 (20.0-25.0)
Rocker Arm Adjusting Lock Nuts, lb-ft (Nm) ............... 10.1-13.7 (13.7-18.6)
Cylinder Head Rocker Valve Cover Nut, lb-ft (Nm) ............... 5.1-7.2 (7.0-9.8)
Timing Gear Case Cover Bolts, lb-ft (Nm) ............... 14.5-18.4 (20.0-25.0)
Camshaft Thrust Plate Plate Bolts, lb-ft (Nm) ............... 14.5-18.4 (20.0-25.0)
Idler Gear Shaft Bolt, lb-ft (Nm) ............... 18.4-22.1 (25.0-30.0)
Fuel Pump Delivery Valve Holder, lb-ft (Nm) ............... 25.3-28.9 (34.3-39.2)
Fuel Pump Locking Mounting Nut, lb-ft (Nm) ............... 10.1-14.5 (13.7-19.6)
Fuel Injector Assembly Nut, lb-ft (Nm) ............... 43.5-50.6 (59.0-68.6)
Fuel Injection High Pressure Line Cap Nuts, lb-ft (Nm) ............... 14.5-18.1 (19.6-24.5)
Fuel Injector Nozzle Cap Nut, lb-ft (Nm) ............... 25.3-28.9 (34.3-39.2)
Glow Plug Hex Assembly Installation, lb-ft (Nm) ............... 10.8-14.5 (14.7-19.6)
Oil Pan Sump Bottom Drain Plug, lb-ft (Nm) ............... 21.7-28.9 (29.4-39.2)
Oil Pan Sump Perimeter Bolts, lb-ft (Nm) ............... 7.2-10.1 (9.8-13.7)
Oil Pressure Switch, lb-ft (Nm) ............... 10.8-14.5 (14.7-19.6)
Oil Pump Base Plate Screws, lb-ft (Nm) ............... 5.1-7.2 (7.0-9.8)
Water Pump Assembly Mounting Bolts, lb-ft (Nm) ............... 14.5-18.4 (20.0-25.0)
Thermostat Housing Cover Fasteners, lb-ft (Nm) ............... 14.5-18.4 (20.0-25.0)
Water Temperature Sensor, lb-ft (Nm) ............... 18.1-25.3 (24.5-34.3)
Intake Manifold Attachment Bolts, lb-ft (Nm) ............... 14.5-18.4 (20.0-25.0)
Exhaust Manifold Attachment Bolts, lb-ft (Nm) ............... 18.4-22.1 (25.0-30.0)
Starter Motor Housing Bolts, lb-ft (Nm) ............... 36.2-43.4 (49.0-58.8)
Alternator Pivot Mounting Bolt, lb-ft (Nm) ............... 36.2-43.4 (49.0-58.8)
Alternator Adjusting Locking Clamp Bolt, lb-ft (Nm) ............... 14.5-18.4 (20.0-25.0)

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