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Deutz F3M2011 Engine

The Deutz F3M2011 is a workshop-grade, 3-cylinder, naturally aspirated in-line diesel engine designed primarily for mobile industrial construction equipment and power generation applications. It belongs to the Deutz AG 2011 product series, which is engineered with a modular, highly compact footprint to reduce OEM installation costs. The defining operational feature of this engine is its integrated, single-fluid layout where the engine's lubricating oil serves a dual purpose as both the internal lubricant and the primary thermal cooling medium. This configuration minimizes components by omitting conventional liquid-coolant water jackets, hoses, and water pumps, effectively eliminating cavitation and internal corrosion risks. It provides a high power-to-weight ratio, extended component life intervals, and reduced noise emissions via an acoustically optimized structural crankcase.

Valve Configuration: Overhead valve configuration (OHV) acting via rocker arms and pushrods driven by a low-wear, high-tensile internal timing belt. Valves per Cylinder: 2 valves per cylinder (1 inlet, 1 exhaust). Cylinder Bore: 94 mm. Piston Stroke: 112 mm. Total Engine Displacement: 2.33 Liters. Compression Ratio: 18.5:1.

Fuel System: High-efficiency Direct Injection (DI) configuration. Injection Pumps: Leverages single-unit injection pumps (one dedicated unit pump per individual cylinder) driven internally by the camshaft, which ensures reliable high pressure. Fuel Delivery and Mechanics: A mechanical fuel feed pump draws fuel through an inline spin-on canister fuel filter before feeding the high-pressure unit pumps. High-pressure lines connect the unit pumps to individual multi-hole injection valves. Standard Injector Opening Pressure: Set precisely at 210 bar (+8 bar). Governing: Engine speed regulation is controlled via a mechanical flyweight governor or an optional electronic governor system for close frequency regulation.

Lubrication System Type: Forced-feed lubrication circuit pressurized via a gear-type oil pump integrated directly into the crankcase structure. Filtration: High-efficiency, easy-change spin-on canister lube oil replacement filter. Component Overhaul Note: Crankcase includes integrated oil spray nozzles designated for specialized under-piston crown cooling. Cooling Medium: Oil-cooled configuration utilizes the engine's lubricating oil. Thermal Control Mechanism: An external structural block-mounted heat exchanger (oil cooler) dissipates heat. An engine-driven pusher-type cooling fan forces air flow across the radiator surface to extract heat.

General Technical Data

Engine Specifications

Engine Model ............... Deutz F3M2011
Engine Type ............... 4-cycle inline 3-cylinder direct injection oil-cooled diesel
Number of Cylinders ............... 3
Cylinder Arrangement ............... In-line vertical
Engine Bore, in (mm) ............... 3.70 (94.0)
Engine Stroke, in (mm) ............... 4.41 (112.0)
Displacement, cu.in (L) ............... 142.2 (2.33)
Rated Engine Power, hp (kW) ............... 49.0 (36.5)
Rated Engine Speed, rpm ............... 2800
Peak Torque, lb-ft (Nm) ............... 103 (140) at 1700 rpm
Minimum Idle Speed, rpm ............... 800
Maximum Idle Speed, rpm ............... 3000
Aspiration Type ............... Naturally aspirated
Compression Ratio ............... 19.0:1
Firing Order ............... 1-2-3
Cylinder Block Material ............... Cast iron
Cylinder Head Material ............... Cast iron
Combustion System ............... Direct injection with single injection pumps per cylinder
Direction of Rotation ............... Counter-clockwise looking at flywheel side
Number of Valves per Cylinder ............... 2 (1 intake, 1 exhaust)
Exhaust Gas Turbocharger ............... Integrated turbocharger with internal wastegate valve
Lubrication System Type ............... Full-pressure lubrication with integrated oil cooler
Oil Pump Type ............... Gear-driven rotary pump
Oil Filter Type ............... Full-flow spin-on cartridge
Cooling System Type ............... External oil-cooled or integrated oil cooling system
Cooling Fan Drive ............... V-belt driven
Air Cleaner Type ............... Dry type with safety cartridge
Starting System Type ............... Electric starter motor
Electrical System Voltage, V ............... 12 or 24
Alternator Output Capacity, A ............... 60-80

Fuel System

Fuel Injection Pump Type ............... Deutz single injection pumps (PF type unit pumps)
Injection Pump Drive ............... Driven directly by the engine camshaft
Fuel Injector Type ............... Multi-hole nozzle injector assemblies
Fuel Injection Pressure, psi (bar) ............... 3625.9-4351.1 (250.0-300.0)
Peak Injection Pressure, psi (bar) ............... 17404.5 (1200.0)
Fuel Feed Pump Type ............... Mechanical diaphragm or gear type pump plunger
Fuel Feed Pump Pressure, psi (bar) ............... 14.5-29.0 (1.0-2.0)
Fuel Filter Type ............... Spin-on primary cartridge type filter elements
Fuel Injection Timing, deg BTDC ............... 4-8
Governor Type ............... Mechanical centrifugal or optional electronic

Dimensions and Weight

Overall Length, in (mm) ............... 24.1 (610)
Overall Width, in (mm) ............... 17.7 (450)
Overall Height, in (mm) ............... 26.7 (680)
Dry Weight, lb (kg) ............... 460 (210)
Wet Weight, lb (kg) ............... 495 (225)

Maintenance Data

Service Information

Compression Pressure Range, psi (bar) ............... 348.0-406.1 (24.0-28.0)
Compression Difference Between Cylinders, psi (bar) ............... 43.5 (3.0)
Oil Pressure at Low Idle Speed, psi (bar) ............... 14.5 (1.0)
Oil Pressure at Rated Speed, psi (bar) ............... 43.5-58.0 (3.0-4.0)
Maximum Oil Temperature in Oil Pan, F (C) ............... 266 (130)
Intake Valve Clearance, in (mm) ............... 0.012-0.016 (0.30-0.40)
Exhaust Valve Clearance, in (mm) ............... 0.020-0.024 (0.50-0.60)

Engine Oil and Coolant

Engine Oil Type .................. SAE 10W-30, 15W-40
API Service Classifications ......................... CH-4, CG-4, CI-4
Engine Oil Capacity (Minimum Mark), gal (L) ............... 1.3 (5.0)
Engine Oil Capacity (Maximum Mark), gal (L) ............... 2.1 (8.0)

Service Intervals

Change oil and filter ............... Every 500 hours
Replace fuel filters ............... Every 500 hours
Inspect air filter ............... Every 150 hours
Replace air filter ............... Every 1000 hours
Valve clearance adjustment ............... Every 1000 hours
Fuel system inspection ............... Every 1500 hours
Compression test ............... Every 2000 hours
Drain water separator ............... As required
Belt inspection ............... As required

Service Specifications

Cylinder Bore Inside Diameter, in (mm) ................ 3.7008-3.7016 (94.000-94.020)
Crankshaft Journal Outside Diameter, in (mm) ................ 2.7543-2.7551 (69.960-69.980)
Crank Pin Outside Diameter, in (mm) ................ 2.1638-2.1646 (54.960-54.980)
Crankshaft End Play, in (mm) ................ 0.0039-0.0110 (0.100-0.280)
Intake Valve Stem Outside Diameter, in (mm) ................ 0.3138-0.3142 (7.970-7.980)
Exhaust Valve Stem Outside Diameter, in (mm) ................ 0.3130-0.3134 (7.950-7.960)
Intake Valve Guide Inside Diameter, in (mm) ................ 0.3150-0.3157 (8.000-8.018)
Exhaust Valve Guide Inside Diameter, in (mm) ................ 0.3150-0.3157 (8.000-8.018)
Intake Valve Stem to Guide Clearance, in (mm) ................ 0.0008-0.0019 (0.020-0.048)
Exhaust Valve Stem to Guide Clearance, in (mm) ................ 0.0016-0.0027 (0.040-0.068)
Intake Valve Spring Free Length, in (mm) ................ 1.8898 (48.00)
Exhaust Valve Spring Free Length, in (mm) ................ 1.8898 (48.00)
Intake Cam Height, in (mm) ................ 1.8701-1.8740 (47.50-47.60)
Exhaust Cam Height, in (mm) ................ 1.8701-1.8740 (47.50-47.60)
Piston Pin Outside Diameter, in (mm) ................ 1.1811-1.1813 (30.000-30.005)
Piston Pin to Piston Bore Clearance, in (mm) ................ 0.0002-0.0006 (0.005-0.015)
Top Ring Side Clearance, in (mm) ................ 0.0024-0.0035 (0.060-0.090)
Second Ring Side Clearance, in (mm) ................ 0.0016-0.0028 (0.040-0.070)
Oil Ring Side Clearance, in (mm) ................ 0.0012-0.0024 (0.030-0.060)
Top Ring End Gap, in (mm) ................ 0.0098-0.0157 (0.250-0.400)
Second Ring End Gap, in (mm) ................ 0.0118-0.0197 (0.300-0.500)
Oil Ring End Gap, in (mm) ................ 0.0098-0.0157 (0.250-0.400)

Tightening Torque Specs

Cylinder Head Bolt (Stage 1), lb-ft (Nm) ............... 22.1 (30.0)
Cylinder Head Bolt (Stage 2), lb-ft (Nm) ............... 59.0 (80.0)
Cylinder Head Bolt (Stage 3), lb-ft (Nm) ............... 118.0 (160.0)
Main Bearing Cap Fasteners, lb-ft (Nm) ............... 36.8 (50.0)
Connecting Rod Cap Bolts, lb-ft (Nm) ............... 22.1 (30.0)
Crankshaft Central Pulley Screw, lb-ft (Nm) ............... 29.5 (40.0)
Flywheel Mounting Bolts, lb-ft (Nm) ............... 22.1 (30.0)
Camshaft Timing Belt Gear Screw, lb-ft (Nm) ............... 15.4 (21.0)
Rocker Arm Shaft Lever Block Bolt, lb-ft (Nm) ............... 15.4 (21.0)
Valve Adjusting Screw Locknut Fastener, lb-ft (Nm) ............... 14.7 (20.0)
Fuel Injection Pump Clamping Bracket Bolts, lb-ft (Nm) ............... 22.1 (30.0)
Fuel Injector Hold-Down Clamp Flange Bolt, lb-ft (Nm) ............... 15.4 (21.0)
High Pressure Fuel Line Delivery Union Nuts, lb-ft (Nm) ............... 18.4 (25.0)
Fuel Feed Pump Mounting Flange Nuts, lb-ft (Nm) ............... 15.4 (21.0)
Exhaust Manifold Structural Mounting Nuts, lb-ft (Nm) ............... 18.4 (25.0)
Intake Manifold Air Channel Mounting Screws, lb-ft (Nm) ............... 6.6 (9.0)
Oil Cooler Housing Core Retention Fasteners, lb-ft (Nm) ............... 15.4 (21.0)
Crankcase Timing Belt Cover Housing Bolts, lb-ft (Nm) ............... 15.4 (21.0)
Crankcase Housing Flywheel Side Cover Bolts, lb-ft (Nm) ............... 15.4 (21.0)
Starter Motor Frame Mounting Flange Bolts, lb-ft (Nm) ............... 59.0 (80.0)
Alternator Pivot Adjustment Lock Fastener Bolt, lb-ft (Nm) ............... 22.1 (30.0)
Cooling Fan Hub Drive Pulley Lock Screws, lb-ft (Nm) ............... 18.4 (25.0)
Crankcase Ventilation Pressure Regulator Screw, lb-ft (Nm) ............... 6.6 (9.0)
Camshaft Belt Tensioner Idle Roller Bolt, lb-ft (Nm) ............... 33.1 (45.0)
Thermostat Housing Cover Retaining Screws, lb-ft (Nm) ............... 15.4 (21.0)

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• Deutz Engines Specs
  
• Deutz BF3L2011 Specs
  
• Deutz BF3M2011 Specs
  
• Deutz BF4L2011 Specs
  
• Deutz BF4M2011 Specs
  
• Deutz F4M2011 Specs
  

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