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John Deere LX280 Engine

John Deere LX280 Engine Specifications

Engine Model .......... Kawasaki FH580V
Engine Type .......... Gasoline, Vertical, 4-stroke, air cooled, V-twin
Number of Cylinder .......... 2
Cylinder Layout .......... 90 deg V-Twin
Piston Displacement, cc (cu.in) .......... 585 (35.7)
Engine Bore, mm (in) .......... 74.0 (2.91)
Engine Stroke, mm (in) .......... 68.0 (2.68)
Engine Power, Hp (kW) .......... 19.0 (14.2)
Rated Engine Speed, rpm .......... 3600
Maximum Torque, Nm (ft-lb) .......... 37.8 (27.9)
Torque Speed, rpm .......... 2400
Compression Ratio .......... 8.5:1
Carburetor Type .......... Float type with fixed main jet
Fuel Pump .......... Pulse Pump
Governor .......... Flyweight all speed governor
Air Cleaner .......... Dual stage element, dry type
Direction of Rotation .......... Counterclockwise facing the PTO Shaft
Lubricating System Type .......... Pressurized
Oil Filter .......... Dual element
Ignition System Type .......... Transistorized-fly wheel magneto
Spark Plug .......... Champion RCJ8Y
Electrical System Rating, Volts .......... 12
Charging Coil .......... 12V-15 amps with regulator
Starting System .......... Electric starter

John Deere LX280 Engine Maintenance Data

Test and Adjustment Specifications

Slow Idle (Governed) .......... 1700 rpm
Fast Idle .......... 3400 rpm
Minimum Cylinder Compression Pressure .......... 390 kPa (57 psi)
Maximum Difference Between Cylinders .......... 41 kPa (6 psi)
Valve Clearance (cold) .......... 0.10-0.15 mm (0.004-0.006 in.)
Minimum Crankcase Vacuum .......... 1.27 .......... 25.4 cm (0.5 .......... 10.0 in.) water
Oil Pressure at Fast Idle .......... 241 .......... 310 kPa (35 .......... 45 psi)
Oil Pressure Switch (open to close) .......... 98 kPa (14.2 psi)
Fuel Pump Minimum Pressure (at slow idle) .......... 2.45 kPa (0.36 psi)
Fuel Pump Minimum Flow (at slow idle) .......... 800 ml/60 seconds (0.8 qt/60 seconds)
Fuel Pump Push Rod Bend (Maximum) .......... 0.05 mm (0.002 in.)

Engine Oil and Filters

Engine Oil Type .......... SAE 10W-30/10W-40, SAE 5W-20
Oil Classification .......... SF, SG, SH, SJ or SL
Oil Capacity (w/o Filter), L (qts) .......... 1.7 (1.8)
Oil Capacity (with New Filter), L (qts) .......... 1.8 (1.9)
Oil Filter Part Number .......... AM107423
Air Filter Part Number .......... M137556

Carburetor Specs and Adjustment

Carburetor Model .......... Nikki 621266
Throttle Bore Diameter, mm (in) .......... 26.0 (1.02)
Venturi Diameter, mm (in) .......... 18.0 (0.71)
Main Jet .......... #105
Pilot Jet .......... #50
Main Air Jet .......... #110
Pilot Air Jet .......... #140
Pilot Air Screw Turns Out .......... 1-7/8
Float Level .......... Float parallel to carburetor body
Low Idle Speed, rpm .......... 1550±100
High Idle Speed, rpm .......... 3600±100
Throttle Valve Screws Torque, Nm (ft-lbs) .......... 0.70 (0.52)
Main Jet Torque, Nm (ft-lbs) .......... 2.3 (1.7)
Float Chamber Mounting Screw Torque, Nm (ft-lbs) .......... 4.5 (3.3)
Governor Arm Clamp Nut Torque, Nm (ft-lbs) .......... 7.8 (5.8)

Ignition System

Spark Plug Type .......... Champion RCJ8Y or NGK BPMR6A
Spark Plug Gap .......... 0.75 mm (0.030 in.)
Spark Plug Torque .......... 22 Nm (195 lb-in)
Ignition Coil Air Gap .......... 0.30 mm (0.012 in.)
Ignition Timing (3000 rpm) .......... 20 deg BTDC
Resistance between primary lead and core .......... 9k

John Deere LX280 Engine Service Specifications

Cylinder Block and Pistons

Cylinder compression, kPa (psi) .......... 390 (57)
Cylinder inside diameter (Standard), mm (in) .......... 74.10 (2.917)
Cylinder inside diameter (0.50 Oversize), mm (in) .......... 74.60 (2.937)
Cylinder bore out round, mm (in) .......... 0.056 (0.0022)
Connecting rod small end inside diameter, mm (in) .......... 16.05 (0.632)

Cylinder Head and Valves

Cylinder head warp, mm (in) .......... 0.05 (0.002)
Valve clearance (Intake, Exhaust), mm (in) .......... 0.10-0.15 (0.004-0.006)
Valve seating surface angle (Intake, Exhaust), deg .......... 45
Valve seating surface width (Intake), mm (in) .......... 0.6-0.9 (0.024-0.035)
Valve seating surface width (Exhaust), mm (in) .......... 0.6-0.9 (0.024-0.035)
Valve guide inside diameter (Intake, Exhaust), mm (in) .......... 6.08 (0.239)
Valve head thickness (Intake, Exhaust), mm (in) .......... 0.35 (0.014)
Valve stem runout (Intake, Exhaust), mm (in) .......... 0.05 (0.002)
Valve stem diameter (Intake), mm (in) .......... 5.95 (0.0234)
Valve stem diameter (Exhaust), mm (in) .......... 5.93 (0.0233)
Valve guide inside diameter (Intake, Exhaust), mm (in) .......... 6.08 (0.239)
Valve spring free length (Intake, Exhaust), mm (in) .......... 31.0 (1.22)
Rocker arm push rod run out (Intake, Exhaust), mm (in) .......... 0.5 (0.02)

Piston and Piston Rings

Piston diameter, mm (in) .......... 73.79 (2.905)
Top ring groove clearance, mm (in) .......... 0.15 (0.006)
Second ring groove clearance, mm (in) .......... 0.12 (0.005)
Piston ring thickness, mm (in) .......... 1.40 (0.055)
Top ring end gap, mm (in) .......... 0.70 (0.028)
Second ring end gap, mm (in) .......... 0.78 (0.031)
Oil ring end gap, mm (in) .......... 1.05 (0.041)
Piston pin outside diameter, mm (in) .......... 15.96 (0.628)
Piston pin hole inside diameter, mm (in) .......... 16.08 (0.633)

Crankshaft and Connecting Rod

Connecting rod big end width, mm (in) .......... 18.80 (0.74)
Crankpin width, mm (in) .......... 39.50 (1.56)
Connecting rod big end inside diameter, mm (in) .......... 35.055 (1.3801)
Crankpin outside diameter, mm (in) .......... 34.94 (1.3810)
Crankshaft journal diameter, mm (in) .......... 34.93 (1.375)
Crankshaft journal bearing inside diameter, mm (in) .......... 35.15 (1.384)

John Deere LX280 Engine Tightening Torque Specs

Cylinder Head Bolts, Nm (ft-lb) .......... 25 (19)
Crankcase Cover Bolts, Nm (ft-lb) .......... 25 (19)
Flywheel Bolt, Nm (ft-lb) .......... 56 (41)
Valve Clearance Lock Screws, Nm (ft-lb) .......... 6.9 (5.1)
Connecting Rod Big End, Nm (ft-lb) .......... 9.8 (7.3)
Rocker Arm Bolts, Nm (ft-lb) .......... 28 (20)
Rocker Cover Mounting Bolts, Nm (ft-lb) .......... 5.9 (4.4)
Exhaust Pipe Flange Nuts, Nm (ft-lb) .......... 15 (11)
Spark Plugs, Nm (ft-lb) .......... 22 (16)
Governor Arm Clamp Nut, Nm (ft-lb) .......... 7.8 (5.8)
Intake Manifold Mounting Bolts, Nm (ft-lb) .......... 5.9 (4.4)
Recoil Starter Retainer Screw, Nm (ft-lb) .......... 7.8 (5.8)

JOHN DEERE TRACTORS ATTACHMENTS
420	430	455	790	990
X300	X320	X330	X350	X475
X485	X500	X540	X570	X590
X700	X720	X738	X758	1023E
2025R	2210	2520	3025E	3032E
3038E	3038R	3039R	3046R	3203
3320	3520	4052R	4066R	4100
4105	4115	4200	4310	4320
4400	4410	4520	4600	4720

JD TRACTORS TROUBLESHOOTING
2640	3040	3310	3650	4100
5050D	5090R	5410	6105R	7200R
E130	L111	LA110	LT155	X300R