Make:
Deutz (KHD - Klöckner-Humboldt-Deutz)
Model:
913 series air-cooled diesel engine
Model variants:
F2L 913, F3L 913, F4L 913, F5L 913, F6L 913, and turbocharged BF6L 913 variants
Cylinder configurations:
2, 3, 4, 5, and 6-cylinder inline
Production years covered:
Approximately 1960s through the 1990s, depending on variant
Engine type:
Four-stroke, air-cooled, direct-injection diesel
Cooling:
Air-cooled with axial blower fan
Manual type:
Service, repair, and workshop manual
Primary application:
Industrial, agricultural, construction, and stationary power equipment
Common installations:
Tractors, generator sets, compressors, and construction machinery
Target audience:
Technicians, mechanics, and DIY owners servicing Deutz 913 engines
Market segment:
Air-cooled industrial and agricultural diesel engines
Reputation:
Known for durability, simplicity, and ease of service in remote or harsh environments
Cooling system:
Air cooling eliminates radiators, coolant, and freeze-related failures
Construction:
Robust design with individual cylinder heads and barrels for simplified servicing
Fuel system:
Mechanical fuel injection; no electronic controls required
Serviceability:
Components are accessible and can be serviced individually
Combustion system:
Direct fuel injection
Cooling fan:
Engine-driven axial blower
Lubrication:
Forced-feed pressure lubrication with full-flow filtration
Starting:
Electric starter with optional manual decompression starting
Coverage:
Complete engine service and repair for the Deutz 913 series
Systems covered:
Fuel, cooling, lubrication, electrical, and mechanical systems
Procedures:
Troubleshooting, disassembly, inspection, repair, assembly, and adjustment
Page count:
N/A - page count varies by edition and printing
Manual type:
Service repair workshop manual
Delivery method:
Instant download
General information:
Safety precautions, engine identification, and general specifications
Engine mechanical:
Cylinder heads, cylinders, pistons, connecting rods, crankshaft, and bearings
Crankcase and housing:
Crankcase inspection, main bearing bores, and sealing surfaces
Valve train:
Valve adjustment, valve guides, valve seats, and pushrods
Timing system:
Camshaft, timing gears, timing marks, and gear train backlash
Fuel system:
Fuel tank, filters, lift pump, injection pump, and injectors
Injection pump:
Removal, installation, timing, and calibration procedures
Governor:
Mechanical governor operation, adjustment, and repair
Lubrication system:
Oil pump, oil filter, oil cooler, and pressure relief valve
Cooling system:
Blower fan, fan drive, cooling shrouds, and airflow components
Electrical system:
Starter, alternator, charging circuit, and wiring schematics
Starting system:
Starter motor, preheat system, and decompression mechanism
Exhaust system:
Exhaust manifold and turbocharger (applicable variants)
Technical depth:
Step-by-step procedures with detailed diagrams and illustrations
Specifications:
Torque values, clearances, wear limits, and adjustment tolerances
Diagnostics:
Troubleshooting charts for performance and starting faults
Parts information:
Component identification and part reference information
Illustrations:
Detailed line drawings and exploded views
Wiring diagrams:
Electrical schematics included
Photographs:
N/A - illustration style varies by manual edition
Index:
Table of contents and section references
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Engine family:
Deutz 913 series air-cooled diesel
Cylinder options:
2, 3, 4, 5, and 6 cylinders
Displacement range:
Approximately 1.5 L to 5.7 L depending on cylinder count
Bore:
Approximately 100 mm to 102 mm depending on variant
Stroke:
Approximately 120 mm to 125 mm depending on variant
Compression ratio:
Approximately 17:1 to 18:1
Valve configuration:
Overhead valve (OHV), pushrod actuated
Firing order:
1-3-4-2 (4-cylinder); other orders vary by cylinder count
Performance and Fuel System
Induction:
Naturally aspirated; turbocharged on BF variants
Fuel system:
Mechanical direct injection
Injection pump:
Bosch in-line mechanical pump
Injectors:
Multi-hole nozzle injectors
Governor:
Mechanical variable-speed governor
Rated speed:
Typically 1,500 to 2,500 rpm depending on application
Horsepower range:
Approximately 20 HP to over 150 HP depending on variant
Cooling:
Air-cooled with axial blower fan
Transmission type:
N/A - the 913 is an engine; transmissions are supplied by the equipment manufacturer
Standard transmission:
N/A - not applicable to this industrial engine
Optional transmission:
N/A - not applicable to this industrial engine
Engine-to-Transmission Interface
Flywheel and housing:
Flywheel and bellhousing vary by OEM installation
PTO provision:
Front and rear PTO drive options available on some variants
Clutch:
N/A - clutch assembly varies by host equipment
Configuration:
Inline cylinder arrangement
Length:
Varies by cylinder count; e.g. approximately 600 mm for 2-cylinder to approximately 1,200 mm for 6-cylinder
Width:
Varies with cooling fan and shroud, approximately 650 mm
Height:
Varies with air cleaner and accessories, approximately 800 mm
Wheelbase:
N/A - not applicable to an engine assembly
Dry weight:
Varies by variant and accessories; approximately 150 kg (2-cyl) to 500 kg (6-cyl)
Weight with accessories:
Increases with starter, alternator, and cooling components
Crash test ratings:
N/A - not applicable to an engine assembly
Over-speed protection:
Governor limits maximum engine speed
Pressure relief:
Lubrication system pressure relief valve
Temperature control:
Air-cooled design with thermostatic control of cooling airflow on some variants
Fuel shutoff:
Manual or solenoid fuel shutoff for safe engine stop
Preheat:
Cold-start preheat or flame-start equipment on some applications
Guarding:
Optional guards for fan and drive belts
Grounding:
Engine grounding points specified for electrical safety
Control system:
Mechanical; no electronic control module
Governor:
Centrifugal mechanical governor
Fuel injection:
Direct mechanical injection with in-line pump
Sensors:
Oil pressure switch and temperature sender where fitted
Electrical and Monitoring
Charging system:
Belt-driven alternator with integrated regulator
Starting system:
Electric starter motor; decompression starting optional
Instrumentation:
Oil pressure gauge, temperature gauge, and hour meter as fitted
Wiring:
Simple DC wiring with relays and fuses
Oil change:
Typically every 100 to 250 hours depending on application and duty cycle
Oil filter:
Replace with every oil change or as specified
Fuel filter:
Replace at regular intervals, typically every 250 to 500 hours
Air cleaner:
Clean or replace based on restriction indicator or interval
Valve adjustment:
Check and adjust clearance at scheduled intervals
Injection system:
Injector and pump service at specified intervals
Fluids and Specifications
Engine oil:
API CF or higher diesel engine oil; viscosity per ambient temperature
Fuel:
Diesel fuel per applicable standards
Coolant:
N/A - engine is air-cooled
Oil capacity:
Varies by crankcase and variant; consult manual for exact capacity
Known Issues and Wear Items
Cylinder head:
Cracking and valve recession on high-hour engines
Cooling fins:
Debris and oil buildup reducing cooling efficiency
Injectors:
Nozzle wear and coking affecting performance
Fuel pump:
Seal and plunger wear over time
Oil leaks:
Gaskets and seals at crankcase and cylinder bases
Blower fan:
Belt and bearing wear on fan drive
Manufacturer:
Deutz AG (Klöckner-Humboldt-Deutz AG, KHD)
Founded:
1864 in Cologne, Germany
Engine lineage:
Deutz air-cooled diesel engines developed through the 20th century
913 series introduction:
Introduced in the 1960s as a refined air-cooled direct-injection diesel
Model Evolution and Production
Model evolution:
913 series succeeded by the 914 and later 1012/1013 series engines
Production location:
Manufactured primarily in Germany
End of production:
Gradually phased out from the 1980s through the 1990s as emissions and noise standards advanced
Legacy:
Widely used in Deutz tractors, construction equipment, and generator sets worldwide