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Deutz BF6M1015CP Engine

The Deutz BF6M1015CP is a liquid-cooled, four-stroke, direct-injection V6 diesel engine designed for demanding industrial, construction, and agricultural applications. It features a 90-degree V-configuration with a compact design, offering a high power-to-weight ratio and exceptional durability. The "CP" designation indicates turbocharging with charge air cooling (intercooling), which significantly enhances combustion efficiency and lowers thermal loads on core components. Built with individual cylinder heads and a rigid crankcase, this engine is engineered for heavy-duty performance under continuous load cycles.

The engine utilizes an overhead valve (OHV) configuration with 4 valves per cylinder (2 inlet and 2 exhaust valves). This design optimizes gas exchange, improves volumetric efficiency, and reduces fuel consumption. The valves are actuated via pushrods and rocker arms driven by a single, centrally located camshaft within the V-engine block. The engine features a square or slightly oversquare architecture to balance piston speed with structural thermal efficiency. The cylinder bore is 132 mm, and the piston stroke is 145 mm. This results in a total displacement of 11.9 liters.

Fuel delivery relies on a mechanical or electronic governor-controlled high-pressure injection system. It incorporates individual injection pumps (PLD / Unit Pump System) for each cylinder, which are driven directly by the main camshaft. Short high-pressure fuel lines connect each pump to multi-hole injection nozzles located centrally in the cylinder heads. This setup allows for very high injection pressures and precise fuel metering, promoting complete atomization and ensuring compliance with stringent emissions standards.

Lubrication is managed via a forced-feed, closed-circuit system driven by a gear-type oil pump. It features an integrated oil cooler to maintain optimal viscosity under high thermal stress. The system utilizes spin-on full-flow oil filters and an oil-to-coolant heat exchanger. Piston cooling nozzles project engine oil directly onto the undersides of the pistons to control crown temperatures.

The engine uses a liquid-cooling circuit utilizing a centrifugal coolant pump to circulate fluid through the engine block and individual cylinder heads. Temperature control is regulated via a multi-stage thermostat layout that diverts flow to an external radiator or bypasses it during warm-up. The system is pressurized and includes a dedicated charge-air cooler (intercooler) to drop the temperature of the intake air coming from the turbocharger before it enters the cylinders.

General Technical Data

Engine Specifications

Engine Model ............... Deutz BF6M1015CP
Engine Type ............... 4-cycle V-block 6-cylinder direct injection turbocharged liquid-cooled diesel
Number of Cylinders ............... 6
Cylinder Arrangement ............... V-type, 90 deg
Engine Bore, in (mm) ............... 5.20 (132.0)
Engine Stroke, in (mm) ............... 5.71 (145.0)
Displacement, cu.in (L) ............... 726.6 (11.91)
Rated Engine Power, hp (kW) ............... 442 (330) at 2100 rpm
Rated Engine Speed Range, rpm ............... 1500-2100
Peak Torque, lb-ft (Nm) ............... 1383 (1875) at 1200 rpm
Low Idle Speed, rpm ............... 550-650
High Idle Speed, rpm ............... 2300-2450
Aspiration Type ............... Turbocharged and charge air intercooled
Compression Ratio ............... 16.5:1
Firing Order ............... 1-4-2-5-3-6
Cylinder Block Material ............... High-strength grey cast iron mono-block design
Cylinder Head Design ............... Individual separate crossflow heads per cylinder unit
Valves Per Cylinder Assembly ............... 4 valves per head (2 intake and 2 exhaust)
Camshaft Placement Location ............... In-block mid-mounted high-durability gear-driven shaft
Combustion System ............... Direct injection
Cylinder Liners ............... Wet exchangeable cylinder liners
Lubrication System ............... Forced-feed lubrication with gear pump
Oil Pump Type ............... Gear-driven
Oil Filter Type ............... Full-flow spin-on cartridge
Cooling System ............... Liquid-cooled
Water Pump Type ............... Gear-driven centrifugal pump
Air Cleaner Type ............... Dry dual-stage with safety element
Starting System ............... Electric starter motor
Electrical System Voltage, V ............... 12 or 24
Alternator Rating, A ............... 55 or 80

Fuel System

Injection System Type ............... Deutz PLD individual unit pumps
Fuel Injection Pump System ............... Camshaft lobe-driven
Number of Individual Injection Pumps ............... 6
Injection Pressure, psi (bar) ............... 23206 (1600)
Fuel Injector Nozzle Type ............... Multi-hole
Number of Injector Spray Orifices ............... 8
Governor Module Design ............... Electronic Motor Regulator
Fuel Feed Pump Mechanism ............... Gear-driven, mechanical
Fuel Feed Pump Pressure, psi (bar) ............... 72.5-87.0 (5.0-6.0)
Primary Fuel Filter Element ............... Spin-on cartridge element
Secondary Fuel Water Separator ............... Integrated water trap
Fuel Injection Timing Advance Controller ............... Electronic control unit

Dimensions and Weight

Overall Length (Industrial), in (mm) ............... 32.8 (830)
Overall Length (Generator), in (mm) ............... 41.1 (1045)
Overall Width, in (mm) ............... 36.7 (930)
Overall Height, in (mm) ............... 46.1 (1170)
Dry Weight, lbs (kg) ............... 1870 (850)
Operating Weight, lbs (kg) ............... 2095 (950)

Maintenance Data

Service Information

Compression Pressure Test Minimum, psi (bar) ............... 348.0 (24.0)
Compression Pressure Max Cylinder Deviation, psi (bar) ............... 43.5 (3.0)
Oil Pressure at Idle Speed, psi (bar) ............... 21.7 (1.5)
Oil Pressure at Rated Speed, psi (bar) ............... 65.2 (4.5)
Thermostat Opening Temperature, F (C) ............... 181 (83)
Thermostat Full Open Temperature, F (C) ............... 203 (95)
Max Oil Temperature in Oil Pan, F (C) ............... 257 (125)
Intake Valve Clearance, in (mm) ............... 0.008-0.012 (0.20-0.30)
Exhaust Valve Clearance, in (mm) ............... 0.012-0.016 (0.30-0.40)

Engine Oil and Coolant

Engine Oil Type .................. SAE 10W-30, 15W-40
API Service Classifications ......................... CG-4, CH-4, CI-4
Engine Oil System Total Capacity, gal (L) ............... 10.0 (38.0)
Engine Oil Min Dipstick Level, gal (L) ............... 5.8 (22.0)
Engine Oil Max Dipstick Level, gal (L) ............... 7.9 (30.0)
Cooling Internal Capacity, gal (L) ............... 12.4 (47.0)

Service Intervals

Change oil and filter ............... Every 500 hours
Replace fuel filters ............... Every 500 hours
Inspect air filter ............... Every 100 hours
Change coolant ............... Every 2 years
Replace air filter ............... Every 1000 hours
Valve clearance adjustment ............... Every 1000 hours
Change coolant ............... 1000 hours or 2 years
Fuel system inspection ............... Every 1500 hours
Compression test ............... Every 3000 hours
Drain water separator ............... As required
Belt inspection ............... As required

Service Specifications

Cylinder Bore Inside Diameter, in (mm) ................ 5.1968 (132.00)
Crankshaft Journal Outside Diameter, in (mm) ................ 4.3307 (110.00)
Crank Pin Outside Diameter, in (mm) ................ 3.7402 (95.00)
Crankshaft End Play, in (mm) ................ 0.0039-0.0118 (0.10-0.30)
Intake Valve Stem Outside Diameter, in (mm) ................ 0.3535 (8.98)
Exhaust Valve Stem Outside Diameter, in (mm) ................ 0.3528 (8.96)
Intake Valve Guide Inside Diameter, in (mm) ................ 0.3543 (9.00)
Exhaust Valve Guide Inside Diameter, in (mm) ................ 0.3543 (9.00)
Intake Valve Stem to Guide Clearance, in (mm) ................ 0.0047 (0.12)
Exhaust Valve Stem to Guide Clearance, in (mm) ................ 0.0059 (0.15)
Intake Valve Spring Free Length, in (mm) ................ 2.4409 (62.00)
Exhaust Valve Spring Free Length, in (mm) ................ 2.4409 (62.00)
Intake Cam Height, in (mm) ................ 2.1654 (55.00)
Exhaust Cam Height, in (mm) ................ 2.1654 (55.00)
Piston Pin Outside Diameter, in (mm) ................ 1.9685 (50.00)
Piston Pin to Piston Bore Clearance, in (mm) ................ 0.00016-0.00055 (0.004-0.014)
Top Ring Side Clearance, in (mm) ................ 0.0039-0.0051 (0.10-0.13)
Second Ring Side Clearance, in (mm) ................ 0.0028-0.0039 (0.07-0.10)
Oil Ring Side Clearance, in (mm) ................ 0.0016-0.0028 (0.04-0.07)
Top Ring End Gap, in (mm) ................ 0.0354 (0.90)
Second Ring End Gap, in (mm) ................ 0.0787 (2.00)
Oil Ring End Gap, in (mm) ................ 0.0472 (1.20)

Tightening Torque Specs

Cylinder Head Bolts, Stage 1 ................ 80 Nm (59 lb-ft)
Cylinder Head Bolts, Stage 2 ................ 160 Nm (118 lb-ft)
Connecting Rod Bolts (M14 x 1.5) ................ 60 Nm (44 lb-ft)
Main Bearing Cap Bolts (M16), Stage 1 ................ 100 Nm (74 lb-ft)
Main Bearing Cap Bolts (M16), Stage 2 ................ 200 Nm (148 lb-ft)
Crankshaft Damper Pulley Bolt (center) ................ 200 Nm (148 lb-ft)
Flywheel Bolts (to crankshaft flange, M12) ................ 100 Nm (74 lb-ft)
Flywheel Housing Bolts (to block, M12) ................ 90 Nm (66 lb-ft)
Camshaft Bearing Cap Bolts (M8) ................ 25 Nm (18 lb-ft)
Rocker Arm Shaft Bracket Bolts (M10) ................ 40 Nm (30 lb-ft)
Valve Cover Nuts (M6) ................ 12 Nm (9 lb-ft).
Injection Pump Mounting Nuts (to block, M10) ................ 50 Nm (37 lb-ft)
Injection Pump Drive Gear Nut (M14) ................ 120 Nm (89 lb-ft)
High-Pressure Fuel Line Nuts (M14) ................ 30 Nm (22 lb-ft)
Injector Hold-Down Clamp Bolts (M8) ................ 25 Nm (18 lb-ft)
Injector Nozzle Holder Assembly (to cylinder head, M14) ................ 70 Nm (52 lb-ft)
Oil Pump Mounting Bolts (M8) ................ 20 Nm (15 lb-ft)
Oil Cooler Mounting Bolts (M10) ................ 40 Nm (30 lb-ft)
Water Pump Mounting Bolts (M8) ................ 20 Nm (15 lb-ft)
Starter Motor Mounting Bolts (M12) ................ 90 Nm (66 lb-ft)
Alternator Pivot Bolt (M10) ................ 40 Nm (30 lb-ft)
Turbocharger Mounting Nuts (M10) ................ 45 Nm (33 lb-ft)
Exhaust Manifold Nuts (M10) ................ 40 Nm (30 lb-ft)
Engine Mount Bracket Bolts (to block, M12) ................ 120 Nm (89 lb-ft)

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• Deutz Engines Specs
  
• Deutz BF6M1015C Specs
  
• Deutz BF8M1015C Specs
  
• Deutz BF8M1015CP Specs
  

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