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Ford 2714E Engine

The Ford 2714E is a heavy-duty, inline 6-cylinder diesel engine belonging to the Ford Dorset engine range. Characterized by its robust, naturally aspirated, all-mechanical configuration, this block has been historically used across commercial vehicle, industrial, agricultural, and premium marine applications (often customized by specialist marinizers such as Lehman, Sabre, and Mermaid). It is highly regarded for its low-RPM high-torque characteristics, cast-iron reliability, and a simplistic layout devoid of electronic management systems.

The cylinder head utilizes an overhead valve (OHV) arrangement featuring vertically mounted valves operating via pushrods and a gear-driven camshaft. The design incorporates two valves per cylinder. Inlet and exhaust valves feature 30 deg seats. The inlet valve head diameter is larger than the exhaust valve, measuring exactly 45.2 mm. A specialized "scallop" pattern is precision-machined into the cylinder head face between the two valve locations. Bore: 107 mm (4.22 inches). Stroke: 115 mm (4.524 inches). Total Displacement: 6.22 liters (380 cubic inches). Compression Ratio: 16.0:1.

Fuel System: Combustion is handled through a direct injection layout where fuel is delivered straight into the piston bowl chambers. The fuel delivery infrastructure relies on an inline mechanical injection pump matching a firing order sequence of 1-5-3-6-2-4. The pump system is mechanically speed-governed and relies on high-pressure steel fuel lines to route diesel to multi-hole injectors. Air delivery to the intake manifold is naturally aspirated through a dry-element air cleaner assembly.

The engine utilizes a full-pressure lubrication feed supplied by a low-mounted internal oil pump. The system features a spring-loaded oil pressure relief valve accessible near the base assembly. Oil filtration is managed via a full-flow, spin-on disposable element. Distinct to the Dorset engine layout, there are no external oil lines running between the primary fuel injection pump and the oil filter housing.

Cooling is performed by a forced liquid circulation design. Industrial variants leverage a standard belt-driven centrifugal water pump and mechanical cooling fan to move fluid through an engine-mounted radiator block. Marine derivatives integrate a dual-circuit configuration featuring an internal fresh-water jacket circuit regulated by a thermostat, coupled via a cupro-nickel heat exchanger to a gear-driven raw-water sea pump.

General Technical Data

Engine Specifications

Engine Model ............... Ford 2714E
Engine Type ............... 4-stroke inline 6-cylinder direct injection liquid-cooled diesel
Number of Cylinders ............... 6
Cylinder Arrangement ............... In-line
Engine Bore, in (mm) ............... 4.22 (107.0)
Engine Stroke, in (mm) ............... 4.524 (115.0)
Displacement, cu.in (L) ............... 380 (6.22)
Rated Engine Power, hp (kW) ............... 109-115 (81-85.7)
Rated Engine Speed, rpm ............... 2500
Peak Torque ............... 265 lb-ft (356 Nm) at 1600 rpm
Idle Speed ............... 600-650 rpm
Aspiration Type ............... Naturally Aspirated
Compression Ratio ............... 16.0:1
Firing Order ............... 1-5-3-6-2-4
Cylinder Block Type ............... Monobloc cast iron with dry liners
Cylinder Head Type ............... Single-piece cast iron overhead valve
Lubrication System ............... Forced pressure feed with full-flow filtration
Oil Pump Type ............... Eccentric rotor type gear-driven from camshaft
Oil Filter Type ............... Spin-on full-flow cartridge
Cooling System ............... Liquid circulation with thermostat control
Water Pump Type ............... Centrifugal belt-driven assembly
Air Cleaner Type ............... Heavy-duty oil bath or dry element type
Starting System ............... Axial type electric starter motor
Electrical System ............... 12V or 24V

Fuel System

Injection Pump Type ............... Minimec inline mechanical governor style
Governor Type ............... Mechanical flyweight or pneumatic tracking control
Fuel Lift Pump ............... Mechanical diaphragm, driven by eccentric on camshaft
Injector Type ............... Multi-hole nozzle configuration
Injector Opening Pressure, psi (bar) ............... 2722 (185)
Fuel Filter Type ............... Dual stage element with water sediment bowl separator
Maximum Fuel Lift Pump Pressure, psi (bar) ............... 6.0-10.0 (0.41-0.69)
Injection Timing, deg BTDC ............... 19.0-21.0
Fuel Transfer Delivery Rate, gal/hr (L/hr) ............... 35.0 (132.5)
Fuel Return Line System ............... Overhead spill pipe rail back to supply tank layout

Dimensions and Weight

Overall Engine Length, in (mm) ............... 41.2 (1045)
Overall Engine Width, in (mm) ............... 26.5 (675)
Overall Engine Height, in (mm) ............... 39.8 (1010)
Dry Engine Weight, lb (kg) ............... 1160 (526)
Wet Engine Weight, lb (kg) ............... 1230 (558)

Maintenance Data

Service Information

Compression Pressure, Minimum, psi (bar) ............... 350 (24.1)
Oil Pressure at Idle, psi (bar) ............... 15.0 (1.03)
Oil Pressure at Rated Speed, psi (bar) ............... 40.0-60.0 (2.76-4.14)
Thermostat Opening Begins, F (C) ............... 160 (71)
Thermostat Fully Open, F (C) ............... 185 (85)
Valve Clearance Inlet, Cold, in (mm) ............... 0.015 (0.38)
Valve Clearance Exhaust, Cold, in (mm) ............... 0.015 (0.38)

Engine Oil and Coolant

Engine Oil Type .................. SAE 30, SAE 20W-50, SAE 15W-40
API Service Classifications ......................... CC or CD
Engine Oil Capacity with Filter, qt (L) ............... 16.0 (15.1)
Cooling System Capacity, qt (L) ............... 24.5 (23.2)

Service Intervals

Change oil and filter ............... Every 100 hours
Inspect air cleaner ............... Every 50 hours
Replace air cleaner ............... Every 500 hours
Replace fuel filter ............... Every 400 hours
Valve clearance adjustment ............... Every 400 hours
Fuel system inspection ............... Every 600 hours
Change coolant ............... Every 1000 hours
Compression test ............... Every 600 hours
Belt inspection ............... Every service cycle

Service Specifications

Cylinder Bore Out of Round Limit, in (mm) ............... 0.001 (0.025)
Cylinder Bore Taper Limit, in (mm) ............... 0.0015 (0.038)
Main Journal Standard Diameter, in (mm) ............... 3.375 (85.72)
Main Bearing Shell Clearance, in (mm) ............... 0.0022-0.0042 (0.056-0.107)
Main Journal Maximum Wear, in (mm) ............... 0.002 (0.051)
Crankpin Standard Diameter, in (mm) ............... 2.750 (69.85)
Connecting Rod Bearing Clearance, in (mm) ............... 0.0016-0.0036 (0.041-0.091)
Crankshaft End Play, in (mm) ............... 0.002-0.011 (0.051-0.279)
Piston Pin Bushing Inner Diameter, in (mm) ............... 1.5003-1.5006 (38.108-38.115)
Piston Pin to Small End Clearance, in (mm) ............... 0.0003-0.0007 (0.008-0.018)
Piston to Cylinder Liner Clearance, in (mm) ............... 0.0065-0.0075 (0.165-0.191)
Top Ring Groove Clearance, in (mm) ............... 0.0028-0.0048 (0.071-0.122)
Second Ring Groove Clearance, in (mm) ............... 0.0020-0.0040 (0.051-0.102)
Oil Ring Groove Clearance, in (mm) ............... 0.0018-0.0038 (0.046-0.097)
Top Ring End Gap, in (mm) ............... 0.011-0.021 (0.279-0.533)
Second Ring End Gap, in (mm) ............... 0.011-0.021 (0.279-0.533)
Oil Ring End Gap, in (mm) ............... 0.011-0.021 (0.279-0.533)
Cylinder Head Distortion Maximum, in (mm) ............... 0.003 (0.076)
Intake Valve Stem to Guide Clearance, in (mm) ............... 0.0015-0.0035 (0.038-0.089)
Exhaust Valve Stem to Guide Clearance, in (mm) ............... 0.0025-0.0045 (0.063-0.114)
Valve Guide Installed Height, in (mm) ............... 0.560 (14.22)
Intake Valve Head Recess Below Face, in (mm) ............... 0.035-0.045 (0.89-1.14)
Exhaust Valve Head Recess Below Face, in (mm) ............... 0.035-0.045 (0.89-1.14)
Valve Seat Angle, deg ............... 45
Camshaft Journal Standard Diameter, in (mm) ............... 2.248 (57.10)
Camshaft End Play, in (mm) ............... 0.002-0.007 (0.051-0.178)

Tightening Torques

Cylinder Head Bolts (1-Stage), lb-ft (Nm) ............... 55 (75)
Cylinder Head Bolts (2-Stage), lb-ft (Nm) ............... 85 (115)
Cylinder Head Bolts (3-Stage), lb-ft (Nm) ............... 115 (156)
Main Bearing Cap Fasteners, lb-ft (Nm) ............... 115 (156)
Connecting Rod Cap Nut Fasteners, lb-ft (Nm) ............... 75 (102)
Flywheel Retaining Fastener Assembly, lb-ft (Nm) ............... 80 (108)
Crankshaft Damper Pulley Center Bolt, lb-ft (Nm) ............... 150 (203)
Camshaft Thrust Plate Retaining Screw, lb-ft (Nm) ............... 15 (20)
Camshaft Timing Gear Central Bolt, lb-ft (Nm) ............... 45 (61)
Rocker Shaft Bracket Attachment Nut, lb-ft (Nm) ............... 45 (61)
Rocker Arm Adjuster Lock Screw Nut, lb-ft (Nm) ............... 18 (24)
Timing Housing to Block Bolt Face, lb-ft (Nm) ............... 18 (24)
Timing Housing Front Cover Fastener, lb-ft (Nm) ............... 15 (20)
Oil Pan Sump Perimeter Bolt Stud, lb-ft (Nm) ............... 15 (20)
Oil Pan Drain Plug Socket Fitting, lb-ft (Nm) ............... 35 (47)
Intake Manifold Assembly Mounting Bolt, lb-ft (Nm) ............... 18 (24)
Exhaust Manifold Assembly Mounting Nut, lb-ft (Nm) ............... 22 (30)
Fuel Injection Pump Drive Gear Nut, lb-ft (Nm) ............... 45 (61)
Fuel Injection Pump Body Base Mount, lb-ft (Nm) ............... 18 (24)
Fuel Injector Clamp Hold Down Bolt, lb-ft (Nm) ............... 15 (20)
Fuel High Pressure Pipe Gland Nut, lb-ft (Nm) ............... 18 (24)
Water Pump Assembly Housing Face Bolt, lb-ft (Nm) ............... 18 (24)
Thermostat Housing Cover Retaining Screw, lb-ft (Nm) ............... 15 (20)
Oil Filter Housing Adapter Mount Bolt, lb-ft (Nm) ............... 28 (38)
Oil Pressure Relief Valve Plug Assembly, lb-ft (Nm) ............... 40 (54)
Oil Pump Pick Up Screen Support Tube, lb-ft (Nm) ............... 15 (20)
Starter Motor Flange Mounting Stud Nut, lb-ft (Nm) ............... 35 (47)
Alternator Pivot Mount Adjustment Bolt, lb-ft (Nm) ............... 25 (34)
Glow Plug Assembly Internal Cylinder, lb-ft (Nm) ............... 15 (20)
Crankcase Breather Assembly Mount Cap, lb-ft (Nm) ............... 10 (14)
Flywheel Housing Structural Core Perimeter, lb-ft (Nm) ............... 35 (47)

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