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John Deere L110 Engine

John Deere L110 Engine Specifications

Engine Model ............ Kohler Command CV491S
Engine Type ............ Gasoline, vertical shaft, 4-cycle
Number of Cylinder ............ Single
Piston Displacement, cc (cu.in) ............ 490 (29.9)
Engine Bore, mm (in) ............ 90.0 (3.60)
Engine Stroke, mm (in) ............ 77.0 (3.03)
Engine Power, Hp (kW) ............ 17.2 (12.8)
Maximum Torque, Nm (ft-lb) ............ 37.9 (28.1)
Fast Idle Speed, rpm ............ 2400
Low Idle Speed, rpm ............ 1400
Compression Ratio ............ 8.5:1
Cooling System ............ Air Intake
Fuel System Type ............ Carburetor
Carburetor Type ............ Float Fixed Main Jet
Carburetor Model ............ Walbro or Nikki
Fuel Pump ............ Diaphragm Type Mechanical Pump
Fuel Filter ............ In-line
Governor Type ............ Centrifugal Mechanical Flyweight
Air Cleaner ............ Replaceable paper element
Lubrication System Type ............ Full-Pressure
Electrical System Rating, Volts ............ 12
Ignition System Type ............ Electronic with Spark Advance
Recommended Battery ............ 12V-250CCA

John Deere L110 Engine Maintenance Data

Cylinder Block and Valves

Cylinder Bore I.D. (Maximum), mm (in) ............ 90.025 mm (3.5443 in.)
Cylinder Head (Max. Out-of-Flatness), mm (in) ............ 0.076 (0.003)
Intake Valve Clearance (Cold), mm (in) ............ 0.038-0.076 (0.0015-0.0030)
Exhaust Valve Clearance (Cold), mm (in) ............ 0.050-0.088 (0.0020-0.0035)

Ignition System

Spark Plug ............ Champion RC12YC
Spark Plug Thread Size, mm (in) ............ 14 (0.55)
Spark Plug Reach, mm (in) ............ 19.1 (0.75)
Spark Plug Gap, mm (in) ............ 1.02 (0.040)
Ignition Module Air Gap, mm (in) ............ 0.200-0.300 (0.008-0.012)
Spark Plug Torque, Nm ............ 24.4-29.8

Engine Oil and Filters

Engine Oil Type (Summer) ............ SAE 10W-30
Engine Oil Type (Winter) ............ SAE 5W-20, 5W-30
Oil Classification ............ SG, SH, SJ or higher
Oil Capacity (w/o Filter), L (qts) ............ 1.7 (1.8)
Oil Capacity (with New Filter), L (qts) ............ 1.9 (2.0)
Oil Filter Part Number ............ AM125424
Air Filter Part Number ............ MIU13963

Carburetor Adjustment

Main Fuel ............ 2-1/2 turns
Idle Fuel ............ 3/4 to 1 full turn
Low Idle Speed, rpm ............ 1200±75
High Idle Speed, rpm ............ 3600±50

John Deere L110 Engine Service Data

Cylinder Block

Cylinder Bore Inside Diameter (Std) ............ 90.000-90.025 mm (3.5433-3.5443 in)
Cylinder Bore Inside Diameter (Maximum Wear Limit) ............ 90.063 mm (3.5458 in)
Cylinder Bore Inside Diameter (Max. Out-of-Round) ............ 0.12 mm (0.0047 in)
Cylinder Bore Inside Diameter (Max. Taper) ............ 0.05 mm (0.0020 in)
Rocker Arm Inside Diameter (Std) ............ 15.837-16.127 mm (0.63-0.64 in)
Rocker Arm Inside Diameter (Maximum Wear Limit) ............ 16.13 mm (0.640 in)
Rocker Shaft Outside Diameter (Std) ............ 15.90-15.85 mm (0.63 in)
Rocker Shaft Outside Diameter (Maximum Wear Limit) ............ 15.727 mm (0.619 in)
Crankshaft End Play (free) ............ 0.0575-0.4925 mm (0.0022-0.0193 in)
Crankshaft Bore in Crankcase Inside Diameter (Std) ............ 44.965-44.990 mm (1.7702-1.7712 in)
Crankshaft Bore in Crankcase (Maximum Wear Limit) ............ 44.9758-45.0012 mm (1.7707-1.7717 in)
Crankshaft Bore in Crankcase Clearance (Std) ............ 0.0300-0.0770 mm (0.0011-0.0030 in)
Camshaft End Play (free) ............ 0.088-0.393 mm (0.003-0.015 in)
Camshaft Running Clearance ............ 0.025-0.105 mm (0.0010-0.0041 in)
Camshaft Bore Inside Diameter (Std) ............ 20.000-20.025 mm (0.7874-0.7884 in)
Camshaft Bore Inside Diameter (Maximum Wear Limit) ............ 20.038 mm (0.7889 in)
Camshaft Bearing Surface Outside Diameter (Std) ............ 19.962-19.975 mm (0.7859-0.7864 in)
Camshaft Bearing Surface Outside Diameter (Maximum Wear Limit) ............ 19.959 mm (0.7858 in)
Connecting Rod to Crankpin Clearance (Std) ............ 0.030-0.055 mm (0.0012-0.0022 in)
Connecting Rod to Crankpin Clearance (Maximum Wear Limit) ............ 0.07 mm (0.0025 in)
Connecting Rod to Crankpin Side Clearance ............ 0.18-0.41 mm (0.007-0.016 in)
Connecting Rod to Piston Pin Clearance ............ 0.015-0.028 mm (0.0006-0.0011 in)
Piston Pin End Inside Diameter (Std) ............ 19.015-19.023 mm (0.7486-0.7489 in)
Piston Pin End Inside Diameter (Maximum Wear Limit) ............ 19.036 mm (0.7495 in)

Cylinder Head and Valves

Cylinder Head (Max. Out-of-Flatness) ............ 0.076 mm (0.003 in)
Hydraulic Valve Lifter to Crankcase Clearance ............ 0.0124-0.0501 mm (0.0005-0.0020 in)
Intake Valve Stem-to-Valve Guide Clearance ............ 0.038-0.076 mm (0.0015-0.0030 in)
Exhaust Valve Stem-to-Valve Guide Clearance ............ 0.050-0.088 mm (0.0020-0.0035 in)
Intake Valve Guide Inside Diameter (Std) ............ 7.038-7.058 mm (0.2771-0.2779 in)
Intake Valve Guide Inside Diameter (Maximum Wear Limit) ............ 7.134 mm (0.2809 in)
Exhaust Valve Guide Inside Diameter (Std) ............ 7.038-7.058 mm (0.2771-0.2779 in)
Exhaust Valve Guide Inside Diameter (Maximum Wear Limit) ............ 7.159 mm (0.2819 in)
Valve Guide Reamer Size (Std) ............ 7.048 mm (0.2775 in)
Valve Guide Reamer Size (0.25 mm Oversize) ............ 7.298 mm (0.2873 in)
Intake Valve Minimum Lift ............ 8.96 mm (0.353 in)
Exhaust Valve Minimum Lift ............ 9.14 mm (0.360 in)
Nominal Valve Seat Angle ............ 45 deg

Piston and Piston Rings

Piston to Piston Pin (selective fit) ............ 0.006-0.017 mm (0.0002-0.0007 in)
Piston Pin Bore Inside Diameter (Std) ............ 19.006-19.012 mm (0.7483-0.7485 in)
Piston Pin Bore Inside Diameter (Maximum Wear Limit) ............ 19.025 mm (0.7490 in)
Piston Pin Outside Diameter (Std) ............ 18.995-19.000 mm (0.7478-0.7480 in)
Piston Pin Outside Diameter (Maximum Wear Limit) ............ 18.994 mm (0.74779 in)
Top Compression Ring to Groove Side Clearance ............ 0.060-0.105 mm (0.0023-0.0041 in)
Middle Compression Ring to Groove Side Clearance ............ 0.040-0.085 mm (0.0015-0.0033 in)
Oil Control Ring to Groove Side Clearance ............ 0.036-0.186 mm (0.0014-0.0073 in)
Top Compression Ring End Gap Bore ............ 0.28-0.51 mm (0.011-0.020 in)
Center Compression Ring End Gap Bore ............ 0.22-0.48 mm (0.008-0.018 in)
Oil Control Ring End Gap ............ 0.250-0.760 mm (0.0098-0.0299 in)
Piston Thrust Face Outside Diameter (Std) ............ 89.951-89.969 mm (3.5413-3.5420 in)
Piston Thrust Face Outside Diameter (Maximum Wear Limit) ............ 89.824 mm (3.5363 in)
Piston Thrust Face to Cylinder Bore Clearance ............ 0.031-0.043 mm (0.0012-0.0016 in)

John Deere L110 Engine Tightening Torque Specs

Cylinder Head, Nm (ft-lbs) ............ 20.0-40.7 (14.8-30.1)
Rocker Pedestal, Nm (ft-lbs) ............ 11.3 (8.3)
Rocker Arm Screw, Nm (ft-lbs) ............ 11.3 (8.4)
Rocker Arm Pivot Stud Torque, Nm (ft-lbs) ............ 11.3 (8.4)
Connecting Rod Bolt, Nm (ft-lbs) ............ 11.3-22.7 (8.4-16.7)
Flywheel Retaining Screw, Nm (ft-lbs) ............ 66.4 (49.1)
Fuel Bowl Retaining Screw, Nm (ft-lbs) ............ 5.1-6.2 (3.8-4.6)
Valve Cover, Nm (ft-lbs) ............ 10.7 (7.9)
Starter Mounting Screw, Nm (ft-lbs) ............ 15.3 (11.3)
Fan, Nm (ft-lbs) ............ 9.9 (7.3)
Fuel Pump, Nm (ft-lbs) ............ 9.0 (6.7)
Spark Plug, Nm (ft-lbs) ............ 24.4-29.8 (18-22)
Ignition Module, Nm (ft-lbs) ............ 6.2 (4.6)
Muffler Retaining Nuts, Nm (ft-lbs) ............ 24.4 (18.0)
Oil Filter, Nm (ft-lbs) ............ 10.4-12.7 (7.5-9.2)
Oil Pan, Nm (ft-lbs) ............ 24.4 (18.0)
Oil Pump Cover, Nm (ft-lbs) ............ 6.2 (4.6)
Governor Control Lever, Nm (ft-lbs) ............ 9.9 (7.3)

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