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John Deere 4039DF Engine

General Technical Data

Engine Specifications

Engine Manufacturer ............... John Deere
Engine Model ............... 4039DF
Number of Cylinders ............... 4
Cylinder Arrangement ............... In-line
Engine Cycle ............... 4-stroke
Displacement, cu.in (L) ............... 239 (3.9)
Cylinder Bore, in (mm) ............... 4.1929 (106.5)
Piston Stroke, in (mm) ............... 4.331 (110.0)
Rated Power at 1500 rpm, hp (kW) ............... 48 (36)
Rated Power at 1800 rpm, hp (kW) ............... 58 (43)
Standby Power at 1500 rpm, hp (kW) ............... 54 (40)
Standby Power at 1800 rpm, hp (kW) ............... 66 (49)
Rated Speed, rpm ............... 1500 or 1800
Low Idle Speed, rpm ............... 800-950
High Idle Speed at 1500 rpm, rpm ............... 1575-1620
High Idle Speed at 1800 rpm, rpm ............... 1890-1944
Compression Ratio ............... 17.8:1
Firing Order ............... 1-3-4-2
Combustion System ............... Direct injection
Aspiration Type ............... Naturally aspirated
Direction of Rotation ............... Counterclockwise viewed from flywheel
Number of Valves per Cylinder ............... 2
Intake Valve per Cylinder ............... 1
Exhaust Valve per Cylinder ............... 1
Crankcase Vent System ............... Open ventilation tube
Cylinder Block Material ............... Cast iron
Cylinder Head Material ............... Cast iron
Cylinder Liner Type ............... Wet replaceable liners
Number of Main Bearings ............... 5
Lubrication System ............... Full-pressure
Oil Pump Type ............... Gear-driven
Oil Filter Type ............... Full-flow spin-on
Cooling System ............... Liquid-cooled
Water Pump Type ............... Belt-driven centrifugal
Air Cleaner Type ............... Dry dual-stage
Starting System ............... Electric Starter
Electrical System ............... 12V
Alternator Capacity ............... 45-55A

Fuel System

Fuel Injection Pump Model ............... Stanadyne DB2 or DB4
Injection Pump Type ............... Rotary distributor type
Fuel Transfer Pump Type ............... Mechanical diaphragm type
Fuel Transfer Pump Pressure, psi (kPa) ............... 4.0-8.0 (27.6-55.2)
Fuel Injection Nozzle Type ............... Multi-hole nozzle type
Fuel Injector Opening Pressure New, psi (bar) ............... 3625 (250)
Fuel Injector Opening Pressure Used, psi (bar) ............... 3335 (230)
Fuel Injection Timing ............... Static timing marks on front gear cover
Maximum Fuel Pump Inlet Restriction, in.Hg (kPa) ............... 6.0 (20.3)
Maximum Fuel Return Line Restriction, in.Hg (kPa) ............... 10.0 (33.9)
Governor Type ............... Mechanical centrifugal
Fuel Filter Type ............... Spin-on full flow cartridge
Fuel Filter Micron Rating, microns ............... 5
Maximum Allowable Fuel Temperature, F (C) ............... 149 (65)
Fuel Leak-off Line Type ............... Flexible low pressure hose
Governor Housing Vent ............... Integrated check valve orifice
Fuel System Air Bleed Method ............... Manual bleed screw on filter header
Injection Line Inner Diameter, in (mm) ............... 0.078 (2.0)
Injection Line Outer Diameter, in (mm) ............... 0.250 (6.35)
Recommended Fuel Grade ............... Ultra-low sulfur diesel Number 2-D
Minimum Fuel Cetane Number ............... 45

Dimensions and Weight

Overall Length, in (mm) ............... 40.0 (1015)
Overall Width, in (mm) ............... 24.3 (615)
Overall Height, in (mm) ............... 37.4 (950)
Dry Weight, lbs (kg) ............... 783 (355)
Wet Weight, lbs (kg) ............... 827 (375)

Maintenance Data

Service Information

Compression Pressure at Crank Speed, psi (kPa) ............... 350-400 (2413-2758)
Oil Pressure at 1500 rpm, psi (kPa) ............... 50 (345)
Oil Pressure at 1800 rpm, psi (kPa) ............... 50 (345)
Oil Pressure at Low Idle, psi (kPa) ............... 15 (103)
Relief Valve Opening Pressure, psi (kPa) ............... 65 (448)
Minimum Allowable Cap Pressure, psi (kPa) ............... 10.0 (69.0)
Thermostat Start to Open Temperature, F (C) ............... 180 (82)
Thermostat Fully Open Temperature, F (C) ............... 202 (94)
Maximum Engine Oil Temperature, F (C) ............... 248 (120)
Max Belt Deflection Under 22 lb Force, in (mm) ............... 0.500 (13.0)

Engine Oil and Coolant

Engine Oil Type .................. SAE 10W-30, 15W-40
API Service Classifications ......................... CK-4 or CJ-4
Engine Oil Capacity with Filter, qt (L) ............... 9.0 (8.5)
Engine Oil Capacity (Shallow Pan), qt (L) ............... 7.4 (7.0)
Engine Oil Capacity (Deep Pan), qt (L) ............... 12.7 (12.0)
Minimum Oil Level on Dipstick, qt (L) ............... 6.3 (6.0)
Coolant Capacity (Block Only), qt (L) ............... 6.0 (5.7)
Coolant Capacity Total System, qt (L) ............... 14.8 (14.0)

Service Intervals

Change engine oil ............... Every 250 hours
Replace oil filter ............... Every 250 hours
Replace fuel filter ............... Every 500 hours
Inspect air filter ............... Every 100 hours
Replace air filter ............... Every 1000 hours
Change coolant ............... Every 2000 hours
Valve-lash adjustment ............... Every 1000 hours
Check fuel system ............... Every 1000 hours
Compression test ............... Every 1000 hours
Belt inspection ............... Every 100 hours

Service Specifications

Cylinder Bore Inside Diameter, in (mm) ............... 4.1929-4.1941 (106.500-106.530)
Cylinder Bore Inside Diameter (Wear Limit), in (mm) ............... 4.1965 (106.591)
Cylinder Bore Out-of-Round Max, in (mm) ............... 0.0015 (0.038)
Connecting Rod Small End Bushing I.D, in (mm) ............... 1.3762-1.3768 (34.955-34.971)
Connecting Rod Big End Bore I.D, in (mm) ............... 2.8745-2.8755 (73.012-73.038)
Crankshaft Main Journal Outer Diameter, in (mm) ............... 3.1230-3.1240 (79.324-79.350)
Crankshaft Main Journal Wear Limit, in (mm) ............... 3.1215 (79.286)
Main Bearing Shell Thickness, in (mm) ............... 0.0955-0.0960 (2.426-2.438)
Main Bearing Clearance, in (mm) ............... 0.0018-0.0042 (0.046-0.107)
Crankpin Journal Outer Diameter, in (mm) ............... 2.7480-2.7488 (69.800-69.820)
Crankshaft End Play, in (mm) ............... 0.001-0.014 (0.025-0.356)
Connecting Rod Bearing Clearance, in (mm) ............... 0.0016-0.0038 (0.041-0.097)
Connecting Rod Side Clearance, in (mm) ............... 0.007-0.013 (0.178-0.330)
Crankshaft Main Bearing Bore I.D, in (mm) ............... 3.3145-3.3155 (84.188-84.214)
Piston Skirt Outer Diameter, in (mm) ............... 4.1878-4.1890 (106.370-106.400)
Piston to Cylinder Bore Clearance, in (mm) ............... 0.0045-0.0055 (0.114-0.140)
Piston Pin Bore Inside Diameter, in (mm) ............... 1.3753-1.3757 (34.933-34.943)
Piston Pin Outside Diameter, in (mm) ............... 1.3748-1.3751 (34.920-34.928)
Piston Pin to Piston Pin Bore Clearance, in (mm) ............... 0.0002-0.0009 (0.005-0.023)
Piston Pin to Small End Bushing Clearance, in (mm) ............... 0.0011-0.0020 (0.028-0.051)
Top Ring Groove Width, in (mm) ............... 0.0965-0.0980 (2.451-2.489)
Second Ring Groove Width, in (mm) ............... 0.0953-0.0965 (2.421-2.451)
Oil Ring Groove Width, in (mm) ............... 0.1882-0.1894 (4.780-4.811)
Top Ring End Gap, in (mm) ............... 0.012-0.022 (0.305-0.559)
Second Ring End Gap, in (mm) ............... 0.010-0.020 (0.254-0.508)
Oil Ring End Gap, in (mm) ............... 0.010-0.025 (0.254-0.635)
Intake Valve Head Diameter, in (mm) ............... 1.74 (44.2)
Exhaust Valve Head Diameter, in (mm) ............... 1.52 (38.6)
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 (0.064-0.114)
Valve Guide Installed Height, in (mm) ............... 0.580-0.600 (14.73-15.24)
Intake Valve Face Angle, degrees ............... 45
Exhaust Valve Face Angle, degrees ............... 45
Intake Valve Seat Angle, degrees ............... 45
Exhaust Valve Seat Angle, degrees ............... 45
Intake Valve Recession, in (mm) ............... 0.024-0.040 (0.610-1.016)
Exhaust Valve Recession, in (mm) ............... 0.024-0.040 (0.610-1.016)
Valve Spring Free Length, in (mm) ............... 2.14 (54.36)
Camshaft Journal Outside Diameter (№1), in (mm) ............... 2.2015-2.2025 (55.918-55.944)
Camshaft Journal Outside Diameter (№2), in (mm) ............... 2.1332-2.1342 (54.183-54.209)
Camshaft Journal Outside Diameter (№3), in (mm) ............... 2.0652-2.0662 (52.456-52.481)
Camshaft Journal Outside Diameter (№4), in (mm) ............... 1.9963-1.9973 (50.706-50.731)
Camshaft Bushing Inside Diameter (№1), in (mm) ............... 2.2040-2.2060 (55.982-56.032)
Camshaft Journal Clearance, in (mm) ............... 0.0015-0.0045 (0.038-0.114)
Camshaft End Play, in (mm) ............... 0.003-0.009 (0.076-0.229)
Cam Lobe Lift (Intake), in (mm) ............... 0.265 (6.73)
Cam Lobe Lift (Exhaust), in (mm) ............... 0.258 (6.55)
Rocker Arm Shaft Outside Diameter, in (mm) ............... 0.7852-0.7862 (19.944-19.969)
Rocker Arm Bushing Inside Diameter, in (mm) ............... 0.7872-0.7887 (19.995-20.033)
Rocker Arm Bushing to Shaft Clearance, in (mm) ............... 0.0010-0.0035 (0.025-0.089)
Tappet Outside Diameter, in (mm) ............... 1.1422-1.1432 (29.012-29.037)
Tappet Bore Inside Diameter, in (mm) ............... 1.1445-1.1460 (29.070-29.108)
Tappet to Block Bore Clearance, in (mm) ............... 0.0013-0.0038 (0.033-0.097)

Tightening Torques

Cylinder Head Bolt (Step 1), lb-ft (Nm) ............... 75 (102)
Cylinder Head Bolt (Step 2), lb-ft (Nm) ............... 110 (149)
Connecting Rod Cap Bolt, lb-ft (Nm) ............... 40 (54)
Main Bearing Cap Bolt (early S/N), lb-ft (Nm) ............... 85 (115)
Main Bearing Cap Bolt (late S/N), lb-ft (Nm) ............... 100 (136)
Flywheel to Crankshaft Bolt (with Washers), lb-ft (Nm) ............... 120 (163)
Flywheel to Crankshaft Bolt (w/o Washers), lb-ft (Nm) ............... 111 (150)
Flywheel Housing to Block Bolt (M10), lb-ft (Nm) ............... 35 (47)
Flywheel Housing to Block Bolt (M12), lb-ft (Nm) ............... 63 (85)
Crankshaft Vibration Damper Bolt, lb-ft (Nm) ............... 150 (203)
Rocker Arm Shaft Clamp Bolt, lb-ft (Nm) ............... 35 (47)
Rocker Arm Adjusting Locknut, lb-ft (Nm) ............... 20 (27)
Valve Cover Fastening Screw, lb-in (Nm) ............... 96 (11)
Timing Gear Cover Bolt, lb-ft (Nm) ............... 20 (27)
Camshaft Thrust Plate Bolt, lb-ft (Nm) ............... 35 (47)
Camshaft Timing Gear Drive Bolt, lb-ft (Nm) ............... 100 (136)
Oil Pump Assembly Base Bolt, lb-ft (Nm) ............... 35 (47)
Oil Pump Cover Fastening Bolt, lb-ft (Nm) ............... 20 (27)
Oil Pan Drain Plug Fitting, lb-ft (Nm) ............... 37 (50)
Oil Pan Perimeter Mounting Bolt (M8), lb-ft (Nm) ............... 20 (27)
Oil Pan Perimeter Mounting Bolt (M10), lb-ft (Nm) ............... 35 (47)
Oil Pressure Regulator Plug, lb-ft (Nm) ............... 35 (47)
Oil Cooler Housing Mounting Bolt, lb-ft (Nm) ............... 20 (27)
Oil Filter Header Center Stud, lb-ft (Nm) ............... 40 (54)
Intake Manifold Flange Fastener, lb-ft (Nm) ............... 20 (27)
Exhaust Manifold Flange Nut, lb-ft (Nm) ............... 35 (47)
Water Pump Mounting Fastener, lb-ft (Nm) ............... 20 (27)
Thermostat Housing Cover Bolt, lb-ft (Nm) ............... 20 (27)
Fan Pulley Assembly Drive Bolt, lb-ft (Nm) ............... 35 (47)
Alternator Mounting Support Pivot Bolt, lb-ft (Nm) ............... 35 (47)
Alternator Tension Link Adjusting Bolt, lb-ft (Nm) ............... 20 (27)
Starter Motor Anchor Flange Bolt, lb-ft (Nm) ............... 35 (47)
Fuel Injection Pump Drive Gear Nut, lb-ft (Nm) ............... 60 (81)
Fuel Injection Pump Flange Nut, lb-ft (Nm) ............... 25 (34)
Fuel Injection Nozzle Clamp Bolt, lb-ft (Nm) ............... 27 (37)
Fuel High Pressure Line Gland Nut, lb-ft (Nm) ............... 20 (27)
Fuel Low Pressure Feed Line Bolt, lb-ft (Nm) ............... 15 (20)
Fuel Transfer Pump Mounting Nut, lb-ft (Nm) ............... 20 (27)
Fuel Filter Bracket Support Bolt, lb-ft (Nm) ............... 25 (34)
Crankcase Vent Tube Bracket Screw, lb-in (Nm) ............... 85 (9.6)
Balancer Shaft Thrust Plate Fastener, lb-ft (Nm) ............... 35 (47)
Front Engine Support Mounting Bracket, lb-ft (Nm) ............... 63 (85)
Rear Engine Support Adapter Fastener, lb-ft (Nm) ............... 100 (136)
Glow Plug Component Installation, lb-ft (Nm) ............... 15 (20)
Oil Line Turbo Feed Union Fitting, lb-ft (Nm) ............... 18 (24)
Oil Line Drain Flange Screw, lb-ft (Nm) ............... 20 (27)
Air Intake Duct Clamping Sleeve, lb-in (Nm) ............... 45 (5.1)
Exhaust Elbow Connecting V-Band Coupling, lb-in (Nm) ............... 70 (7.9)
Coolant Heater Core Block Plug, lb-ft (Nm) ............... 40 (54)
Water Temperature Sensor, lb-ft (Nm) ............... 22 (30)
Oil Pressure Sender Terminal Nut, lb-in (Nm) ............... 15 (1.7)
Flywheel Inspection Cover Fixing Screw, lb-in (Nm) ............... 85 (9.6)
Rear Crankshaft Oil Seal Case Screw, lb-in (Nm) ............... 96 (11)
Main Bearing Cap Cross Tie Bolts, lb-ft (Nm) ............... 45 (61)
Cylinder Block Oil Gallery Core Plugs, lb-ft (Nm) ............... 25 (34)
Cylinder Head Water Jacket Side Plugs, lb-ft (Nm) ............... 30 (41)
Injection Pump Lock Timing Screw, lb-in (Nm) ............... 85 (9.6)
Fuel Leak-off Tee Return Connector, lb-in (Nm) ............... 35 (4.0)
Air Restriction Indicator Adapter Fitting, lb-in (Nm) ............... 25 (2.8)

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• John Deere Engines Specs
  
• John Deere 4039D Specs
  
• John Deere 4039DF001 Specs
  
• John Deere 4039T Specs
  
• John Deere 4039TF001 Specs
  

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