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John Deere 4045D Engine

General Technical Data

Engine Specifications

Engine Model ............... John Deere 4045D
Engine Type ............... 4-cycle inline 4-cylinder direct injection liquid-cooled diesel
Number of Cylinders ............... 4
Cylinder Arrangement ............... In-line
Engine Bore, in (mm) ............... 4.19 (106.0)
Engine Stroke, in (mm) ............... 5.00 (127.0)
Displacement, cu.in (L) ............... 276 (4.5)
Rated Engine Power, hp (kW) ............... 75-85 (56-63)
Rated Engine Speed, rpm ............... 2100-2500
Peak Torque ............... 221-258 lb-ft (300-350 Nm) at 1400-1600 rpm
Idle Speed, Low, rpm ............... 750-850
Idle Speed, High, rpm ............... 2350-2650
Aspiration Type ............... Naturally Aspirated
Operating Speed, rpm ............... 2000-2500
Compression Ratio ............... 17.6:1-19.0:1
Firing Order ............... 1-3-4-2
Combustion Principle ............... Direct injection compression ignition toroid bowl design
Valves Per Cylinder ............... 1 intake and 1 exhaust valve line
Rotation Direction ............... Counterclockwise looking at the flywheel face
Main Bearing Journals ............... 5 precision insert bearing shells
Crankpin Journals ............... 4 precision insert bearing shells
Camshaft Bearings ............... 4 journal journals with bush liners
Piston Pin Bushing ............... High-lead bronze bush insert lining
Balancer Shaft Layout ............... Dual gear-driven internal counter-rotating balancer
Breather System ............... Open crankcase ventilation top cover layout
Cylinder Block Type ............... Cast iron parent-bore structure
Cylinder Head Type ............... Cast iron single piece 8-valve structure
Lubrication System ............... Full-pressure constant-flow design
Oil Pump Type ............... Gear-driven positive displacement inner-rotor design
Oil Filter Type ............... Full-flow, spin-on cartridge layout
Cooling System ............... Forced liquid-cooled layout with bypass thermostat
Water Pump Type ............... Belt-driven, centrifugal impeller assembly
Air Cleaner Type ............... Dry dual-stage heavy duty assembly
Starting System ............... Electric Starter motor interaction
Electrical System ............... 12V or 24V configurations

Fuel System

Injection Pump Model ............... Stanadyne DB2 mechanical rotary system
Alternative Injection Pump ............... Delphi DP200 mechanical series pump option
Fuel Injection Principle ............... High pressure mechanical metering rotor compression
Fuel Transfer Pump Type ............... Mechanical diaphragm lift assembly layout
Fuel Transfer Pump Drive ............... Camshaft eccentric lobe actuation layout
Fuel Transfer Pump Inlet Pressure ............... 2.0-4.0 psi (0.14-0.28 bar)
Fuel Transfer Pump Outlet Pressure ............... 4.0-8.0 psi (0.28-0.55 bar)
Primary Fuel Filter Rating ............... 10-15 microns high efficiency filtration
Secondary Fuel Filter Rating ............... 2-5 microns final stage separation
Water Separator Assembly ............... Under-filter sediment bowl with manual drain valve
Fuel Injection Pressure, psi (bar) ............... 3190-3480 (220-240)
Fuel Return Flow Rate ............... 5.2-7.9 gal/hr (20.0-30.0 L/hr)
Injection Timing Angle ............... 2.0-6.0 degrees BTDC
Governor Type ............... Mechanical centrifugal flyweight layout
Governor Regulation Dropout ............... 7.0-10.0 percent maximum variation speed
Fuel Shutoff Valve Connection ............... 12V or 24V energized-to-run solenoid layout
Injection Nozzle Holder ............... Standard multi-hole pencil nozzle holder design
Injection Nozzle Tip Openings ............... 4-6 micro-orifice discharge layout
Nozzle Opening Pressure, New ............... 3480-3625 psi (240-250 bar)
Nozzle Opening Pressure, Used ............... 3190-3335 psi (220-230 bar)
Fuel Leak-off Line Type ............... Flexible synthetic return collector network
Fuel Supply Pipe Diameter, in (mm) ............... 0.31 (8.0)
Fuel Return Pipe Diameter, in (mm) ............... 0.25 (6.3)
High Pressure Fuel Line Outer Diameter, in (mm) ............... 0.25 (6.35)
High Pressure Fuel Line Inner Diameter, in (mm) ............... 0.08 (2.0)
Maximum Fuel Inlet Temperature ............... 140 F (60 C)
Maximum Fuel Return Temperature ............... 167 F (75 C)
Fuel Filter Water Content Alarm ............... Optional electrical conductivity probe assembly
Injection Pump Lubrication ............... Internal diesel fuel flow dependent design
Fuel Tank Vent Requirement ............... Micro-mesh screened atmospheric breather cap line
Fuel System Priming Device ............... Manual hand lever on mechanical lift pump base
Maximum Allowed Fuel Lift Height, ft (m) ............... 3.3 (1.0)
Maximum Allowed Fuel Inlet Restriction ............... 6.0 in Hg (20.3 kPa)
Maximum Allowed Fuel Return Restriction ............... 20.0 in Hg (67.7 kPa)
Injection Pump Drive Gear Ratio ............... 1:2 speed relationship relative to crankshaft rotation
Injection Pump Drive Backlash, in (mm) ............... 0.003-0.006 (0.07-0.15)
Cold Start Advance Option ............... Electrical linear solenoid internal advance circuit

Dimensions and Weight

Overall Length (Base Config), in (mm) ............... 33.9 (860)
Overall Length with Fan Pulley, in (mm) ............... 36.2 (920)
Overall Width (Base Config), in (mm) ............... 24.1 (610)
Overall Width with Exhaust Manifold, in (mm) ............... 26.5 (675)
Overall Height (Base Config), in (mm) ............... 33.3 (845)
Overall Height with Deep Oil Pan, in (mm) ............... 36.8 (935)
Dry Weight without Accessories, lbs (kg) ............... 853 (385)
Wet Weight with Oil and Coolant, lbs (kg) ............... 915 (415)

Maintenance Data

Service Information

Minimum Compression Pressure, psi (bar) ............... 350 (24.1)
Oil Pressure, Low Idle, psi (bar) ............... 15.0 (1.0)
Oil Pressure, Rated Speed, psi (bar) ............... 50.0 (3.4)
Oil Relief Valve Pressure, psi (bar) ............... 65.0-75.0 (4.5-5.2)
Cooling System Cap Pressure, psi (bar) ............... 10.0-15.0 (0.7-1.0)
Normal Operating Oil Temperature Range ............... 194-230F (90-110C)
Thermostat Start-to-Open Temperature ............... 180F (82C)
Thermostat Fully Open Temperature ............... 203F (95C)

Engine Oil and Coolant

Engine Oil Type .................. SAE 10W-30, 15W-40
API Service Classifications ......................... CK-4 or higher
Engine Oil Capacity with Filter, qt (L) ............... 9.5 (9.0)
Engine Oil Capacity without Filter, qt (L) ............... 8.5 (8.0)
Deep Sump Oil Capacity with Filter, qt (L) ............... 14.3 (13.5)
Shallow Sump Minimum Oil Capacity, qt (L) ............... 6.3 (6.0)
Cooling System Capacity (Engine Block), qt (L) ............... 9.0 (8.5)
Cooling System Capacity with Radiator, qt (L) ............... 18.0-24.3 (17.0-23.0)

Service Intervals

Change engine oil ............... Every 250 hours
Replace oil filter ............... Every 250 hours
Replace fuel filter ............... Every 500 hours
Inspect air filter ............... Every 250 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) ............... 4.1929-4.1937 (106.500-106.520)
Cylinder Bore Maximum Wear Limit, in (mm) ............... 4.1976 (106.620)
Cylinder Bore Taper Maximum, in (mm) ............... 0.0020 (0.050)
Cylinder Bore Out-of-Round Maximum, in (mm) ............... 0.0015 (0.038)
Connecting Rod Small End Bushing I.D, in (mm) ............... 1.3760-1.3768 (34.950-34.970)
Connecting Rod Big End Bore I.D, in (mm) ............... 2.8740-2.8748 (73.000-73.020)
Connecting Rod Side Clearance, in (mm) ............... 0.0047-0.0118 (0.120-0.300)
Crankshaft Main Journal Outside Diameter, in (mm) ............... 3.1236-3.1244 (79.340-79.360)
Crankpin Journal Outside Diameter, in (mm) ............... 2.7476-2.7484 (69.790-69.810)
Main Bearing Shell Thickness, in (mm) ............... 0.0974-0.0978 (2.475-2.485)
Main Bearing to Journal Clearance, in (mm) ............... 0.0016-0.0039 (0.040-0.100)
Crankpin Bearing Shell Thickness, in (mm) ............... 0.0622-0.0626 (1.580-1.590)
Crankpin Bearing to Journal Clearance, in (mm) ............... 0.0014-0.0035 (0.035-0.090)
Crankshaft End Play, in (mm) ............... 0.0012-0.0102 (0.030-0.260)
Piston Skirt Outside Diameter, in (mm) ............... 4.1889-4.1898 (106.400-106.420)
Piston to Cylinder Bore Clearance, in (mm) ............... 0.0031-0.0047 (0.080-0.120)
Piston Pin Bore Inside Diameter, in (mm) ............... 1.3752-1.3756 (34.930-34.940)
Piston Pin Outside Diameter, in (mm) ............... 1.3748-1.3750 (34.920-34.925)
Piston Pin to Piston Pin Bore Clearance, in (mm) ............... 0.0002-0.0008 (0.005-0.020)
Piston Pin to Small End Bushing Clearance, in (mm) ............... 0.0010-0.0020 (0.025-0.050)
Top Ring Groove Width, in (mm) ............... 0.1201-0.1213 (3.050-3.080)
Second Ring Groove Width, in (mm) ............... 0.0957-0.0965 (2.430-2.450)
Oil Ring Groove Width, in (mm) ............... 0.1583-0.1591 (4.020-4.040)
Top Ring Side Clearance, in (mm) ............... 0.0028-0.0043 (0.070-0.110)
Second Ring Side Clearance, in (mm) ............... 0.0020-0.0035 (0.050-0.090)
Oil Ring Side Clearance, in (mm) ............... 0.0016-0.0031 (0.040-0.080)
Top Ring End Gap, in (mm) ............... 0.0118-0.0217 (0.300-0.550)
Second Ring End Gap, in (mm) ............... 0.0236-0.0354 (0.600-0.900)
Oil Ring End Gap, in (mm) ............... 0.0098-0.0197 (0.250-0.500)
Valve Guide Inside Diameter, in (mm) ............... 0.3157-0.3165 (8.020-8.040)
Intake Valve Stem Outside Diameter, in (mm) ............... 0.3134-0.3142 (7.960-7.980)
Exhaust Valve Stem Outside Diameter, in (mm) ............... 0.3126-0.3134 (7.940-7.960)
Intake Valve Stem to Guide Clearance, in (mm) ............... 0.0016-0.0031 (0.040-0.080)
Exhaust Valve Stem to Guide Clearance, in (mm) ............... 0.0024-0.0039 (0.060-0.100)
Valve Face Angle ............... 45.0 degrees
Valve Seat Angle ............... 45.0 degrees
Intake Valve Head Depth, in (mm) ............... 0.0354-0.0472 (0.900-1.200)
Exhaust Valve Head Depth, in (mm) ............... 0.0354-0.0472 (0.900-1.200)
Valve Margin Thickness, in (mm) ............... 0.0315 (0.800)
Valve Spring Free Length, in (mm) ............... 1.949 (49.50)
Camshaft Journal Diameter (Number 1), in (mm) ............... 2.1642-2.1650 (54.970-54.990)
Camshaft Journal Diameter (Number 2), in (mm) ............... 2.1346-2.1354 (54.220-54.240)
Camshaft Journal Diameter (Number 3), in (mm) ............... 2.1051-2.1059 (53.470-53.490)
Camshaft Journal Diameter (Number 4), in (mm) ............... 2.0756-2.0764 (52.720-52.740)
Camshaft Bearing Clearance, in (mm) ............... 0.0020-0.0047 (0.050-0.120)
Camshaft End Play, in (mm) ............... 0.0024-0.0094 (0.060-0.240)
Camshaft Lobe Height (Intake), in (mm) ............... 0.2657 (6.750)
Camshaft Lobe Height (Exhaust), in (mm) ............... 0.2697 (6.850)
Rocker Arm Shaft Outside Diameter, in (mm) ............... 0.7862-0.7870 (19.970-19.990)
Rocker Arm Bushing Inside Diameter, in (mm) ............... 0.7882-0.7894 (20.020-20.050)
Rocker Arm Bushing to Shaft Clearance, in (mm) ............... 0.0012-0.0031 (0.030-0.080)
Tappet Lifter Body Outside Diameter, in (mm) ............... 1.2185-1.2193 (30.950-30.970)
Tappet Bore Inside Diameter, in (mm) ............... 1.2205-1.2217 (31.000-31.030)
Tappet to Block Bore Clearance, in (mm) ............... 0.0012-0.0031 (0.030-0.080)

Tightening Torques

Cylinder Head Cap Screw (Stage 1) ............... 75 lb-ft (102 Nm)
Cylinder Head Cap Screw (Stage 2) ............... 110 lb-ft (150 Nm)
Main Bearing Cap Screw ............... 100 lb-ft (135 Nm)
Connecting Rod Cap Screw ............... 50 lb-ft (68 Nm)
Flywheel Mounting Cap Screw ............... 85 lb-ft (115 Nm)
Flywheel Housing to Block M10 Screw ............... 37 lb-ft (50 Nm)
Flywheel Housing to Block M12 Screw ............... 63 lb-ft (85 Nm)
Crankshaft Front Pulley Hub Bolt ............... 200 lb-ft (270 Nm)
Camshaft Thrust Plate Cap Screw ............... 18 lb-ft (24 Nm)
Camshaft Timing Gear Drive Bolt ............... 63 lb-ft (85 Nm)
Timing Gear Cover Frame to Block Screw ............... 26 lb-ft (35 Nm)
Timing Idler Gear Shaft Hub Main Bolt ............... 47 lb-ft (64 Nm)
Rocker Arm Shaft Support Clamp Nut ............... 35 lb-ft (47 Nm)
Valve Lash Adjuster Jam Locknut ............... 20 lb-ft (27 Nm)
Cylinder Head Rocker Cover Top Screw ............... 96 lb-in (11 Nm)
Oil Pump Body Assembly to Block Bolt ............... 26 lb-ft (35 Nm)
Oil Pan Sump Frame Rim FHolding Screw ............... 26 lb-ft (35 Nm)
Oil Pan Bottom Drain Plug ............... 37 lb-ft (50 Nm)
Fuel Injection Pump Drive Gear Nut ............... 60 lb-ft (81 Nm)
Fuel Injection Pump Flange Mounting Nut ............... 26 lb-ft (35 Nm)
Fuel Injection Pencil Nozzle Clamping Bolt ............... 27 lb-ft (37 Nm)
High Pressure Fuel Line Union Nut ............... 20 lb-ft (27 Nm)
Fuel Transfer Pump Body Mounting Nut ............... 18 lb-ft (24 Nm)
Fuel Secondary Filter Base Cap Screw ............... 26 lb-ft (35 Nm)
Exhaust Manifold Clamping Nut (Stage 1) ............... 15 lb-ft (20 Nm)
Exhaust Manifold Clamping Nut (Stage 2) ............... 33 lb-ft (45 Nm)
Intake Manifold Air Cover Screw ............... 26 lb-ft (35 Nm)
Water Pump to Block Mount Screw ............... 26 lb-ft (35 Nm)
Thermostat Housing Top Water Pipe Screw ............... 26 lb-ft (35 Nm)
Engine Oil Cooler Core Plate Bolt ............... 26 lb-ft (35 Nm)
Alternator Structural Pivot Support Bolt ............... 37 lb-ft (50 Nm)
Alternator Tension Adjusting Lock Bolt ............... 26 lb-ft (35 Nm)
Starter Motor Frame Mounting Stud Nut ............... 63 lb-ft (85 Nm)
Oil Pressure Sensor Sending Unit ............... 11 lb-ft (15 Nm)
Coolant Temperature Sensor Unit ............... 15 lb-ft (20 Nm)
Crankcase Breathing Vent Cap Screw ............... 84 lb-in (9.5 Nm)
Fan Drive Pulley Assembly Core Screw ............... 37 lb-ft (50 Nm)
Vibration Damper to Pulley Interface Screw ............... 35 lb-ft (47 Nm)
Rear Crankshaft Oil Seal Housing Screw ............... 11 lb-ft (15 Nm)
Balancer Shaft Support Housing Bolt ............... 47 lb-ft (64 Nm)
Balancer Shaft Drive Gear Mounting Bolt ............... 63 lb-ft (85 Nm)
Piston Oil Cooling Jet Delivery Nozzle Bolt ............... 11 lb-ft (15 Nm)
Cylinder Block Oil Gallery Sealing Plug ............... 22 lb-ft (30 Nm)
Cylinder Block Water Drain Side ............... 18 lb-ft (24 Nm)

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