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Cub Cadet LTX 1045 Engine
Cub Cadet LTX 1045 Engine Specifications
Engine Model - Kohler Courage SV600S
Engine Type - Gasoline, single-cylinder, vertical shaft air-cooled
Number of Cylinders - 1
Displacement, cc (cu.in) - 597 (36.4)
Engine Bore, mm (in) - 94.0 (3.70)
Engine Stroke, mm (in) - 86.0 (3.38)
Rated Engine Power, hp (kW) - 20.0 (14.9)
Rated Engine Speed, rpm - 3600
Maximum Torque, Nm (ft-lbs) - 44.2 (32.0)
Torque Speed, rpm - 2800
Compression - 8.5:1
Carburetor Model - Walbro
Carburetor Type - Fixed main jet
Fuel Pump - Pulse type
Fuel Filter - In-line
Governor - Mechanical
Lubrication - Full pressure
Oil filter - Full-flow type
Air Cleaner - Replaceable, paper element
Oil Capacity, L (qts) - 1.9 (2.0)
Electrical System Rating, Volts - 12
Starter Type - Electric
Battery Rating - 12V, 400 CCA
Cub Cadet LTX 1045 Engine Maintenance Data
Valve Adjustment
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)
Valve Lash - 0.076 mm (0.003 in.)
Intake Valve Minimum Lift - 8.9 mm (0.350 in.)
Exhaust Valve Minimum Lift - 8.9 mm (0.350 in.)
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 (with Filter), L (qts) - 1.5 (1.6)
Oil Filter Part Number - 12-050-01-S
Air Filter Part Number - 20-083-06-S
Carburetor Adjustment
Main Fuel - Not adjustable
Idle Fuel - Adjust by needle and spring with limiter cap
Low Idle Speed, rpm - 1500±75
High Idle Speed, rpm - 3600±50
Ignition System
Spark Plug Type - Champion RC12YC or QC12YC
Spark Plug Gap, mm (in) - 0.76 (0.030)
Module Air Gap, mm (in) - 0.203-0.305 (0.008-0.012)
Thread Size, mm (in) - 14 (0.55)
Reach, mm (in) - 19.1 (0.75)
Spark Plug Torque, Nm (ft-lbs) - 24-30 (18-22)
Cub Cadet LTX 1045 Engine Service
Specifications
Cylinder Block
Cylinder Bore Inside Diameter (Std) - 94.010-94.035 mm (3.701-3.702 in.)
Cylinder Bore Inside Diameter (Wear Limit) - 94.073 mm (3.704 in.)
Cylinder Bore (Max. Taper) - 0.05 mm (0.002 in.)
Cylinder Bore (Max. Out of Round) - 0.12 mm (0.0047 in.)
Cylinder Head (Max. Out-of-Flatness) - 0.8 mm (0.003 in.)
Cam Gears End Play - 0.5-1.5 mm (0.019-0.059 in.)
Cam Gears Running Side Clearance - 0.02-0.13 mm (0.001-0.005 in.)
Cam Gear-to-Camshaft Running Assembly - 0.02-0.10 mm (0.001-0.004 in.)
Connecting Rod-to-Crankpin Clearance - 0.03-0.055 mm (0.0012-0.0022 in.)
Connecting Rod-to-Crankpin Side Clearance - 0.25-0.59 mm (0.0098-0.0232
in.)
Connecting Rod-to-Piston Pin Clearance - 0.015-0.028 mm (0.0006-0.0011
in.)
Valves and Valve Lifters
Valve Lash - 0.076 mm (0.003 in.)
Intake Valve Minimum Lift - 8.9 mm (0.350 in.)
Exhaust Valve Minimum Lift - 8.9 mm (0.350 in.)
Nominal Valve Seat Angle - 45 degrees
Intake Valve Stem-to-Valve Guide Clearance - 0.038-0.076 mm
(0.0015-0.003 in.)
Exhaust Valve Stem-to-Valve Guide Clearance - 0.050-0.88 mm
(0.0020-0.0035 in.)
Intake Valve Guide Inside Diameter - 6.038-6.058 mm (0.2377-0.2385 in.)
Intake Valve Stem Diameter - 5.982-6.0 mm (0.2355-0.2362 in.)
Exhaust Valve Guide Inside Diameter - 6.038-6.058 mm (0.2377-0.2385 in.)
Exhaust Valve Stem Diameter - 5.970-5.988 mm (0.235-0.2357 in.)
Crankshaft
Crankshaft End Play (Free) - 0.225-1.025 mm (0.0089-0.040 in.)
Crankshaft Bore in Crankcase Inside Diameter - 41.965-41.990 mm
(1.6521-1.6531 in.)
Crankshaft Bore in Closure Plate Inside Diameter - 44.965-44.990 mm
(1.7703-1.7713 in.)
Flywheel End Main Bearing Journal Outside Diameter - 44.913-44.935 mm
(1.7682-1.7691 in.)
Flywheel End Main Bearing Journal (Max. Taper) - 0.0220 mm (0.0009 in.)
Flywheel End Main Bearing Journal (Max. Out of Round) - 0.025 mm (0.001
in.)
PTO End Main Bearing Journal Outside Diameter - 41.913-41.935 mm
(1.6501-1.6510 in.)
PTO End Main Bearing Journal (Max. Taper) - 0.020 mm (0.0008 in.)
PTO End Main Bearing Journal (Max. Out of Round) - 0.025 mm (0.001 in.)
Crankshaft Bore in Closure Plate Clearance - 0.03-0.077 mm (0.0012-0.003
in.)
Crankshaft Bore in Crankcase Clearance - 0.03-0.077 mm (0.0012-0.003
in.)
Connecting Rod Journal Outside Diameter - 40.982-41.000 mm
(1.6134-1.6141 in.)
Connecting Rod Journal (Max. Taper) - 0.012 mm (0.0005 in.)
Connecting Rod Journal (Max. Out of Round) - 0.025 mm (0.001 in.)
Crankshaft T.I.R (PTO End, Crankshaft in Engine) - 0.15 mm (0.0059 in.)
Crankshaft T.I.R (Entire Crankshaft, in V-Blocks) - 0.10 mm (0.0039 in.)
Crankshaft Eccentrics Outside Diameter - 66.940-66.970 mm (2.6354-2.6366
in.)
Balance Weight Bearing Surface Inside Diameter - 67.011-67.086 mm
(2.6382-2.6412 in.)
Guide Pin Outside Diameter - 11.950-11.975 mm (0.4705-0.4715 in.)
Guide Shoe Width - 17.85-17.90 mm (0.703-0.705)
Guide Shoe Hole Inside Diameter - 12.000-12.025 mm (0.4724-0.4734 in.)
Piston and Piston Rings
Piston Pin Bore Inside Diameter - 22.006-22.012 mm (0.8685-0.8666 in.)
Piston Pin Outside Diameter - 21.995-22.0 mm (0.8659-0.8661 in.)
Piston Pin End Inside Diameter - 22.015-22.023 mm (0.8667-0.8670 in.)
Top Compression Ring-to-Groove Side Clearance - 0.04 mm (0.0016 in.)
Middle Compression Ring-to-Groove Side Clearance - 0.04 mm (0.0016 in.)
Top Compression Ring End Gap - 0.15-0.40 mm (0.006-0.016 in.)
Middle Compression Ring End Gap - 0.30-0.55 mm (0.012-0.022 in.)
Piston Thrust Face Outside Diameter - 93.928-93.942 mm (3.6980-3.6985
in.)
Piston Thrust Face-to-Cylinder Bore Clearance - 0.0875 mm (0.0034 in.)
Cub Cadet LTX 1045 Engine Tightening Torque
Specs
Cylinder Head, Nm (ft-lb) - 20.5-41.0 (15-30)
Rocker Arm Pivot Stud - 13.5 (10.0)
Rocker Arm Adjustment Nut Set Screw - 5.5 (4.2)
Flywheel Retaining Screw - 66.5 (49.0)
Connecting Rod Cap - 11.5 (8.5)
Cam Lever - 7.5 (5.4)
Oil Drain Plug - 14.0 (10.4)
Fuel Bowl Retaining Screw Torque - 5.1-6.2 (3.8-4.6)
Balance Weight Screw - 10.0 (7.5)
Air Cleaner Base Mounting Screw - 8.0 (5.8)
Electric Starter Mounting Nut - 3.6 (2.7)
Ignition Module - 6.0 (4.5)
Muffler Retaining Nuts - 24.4 (18.0)
Oil Filter - 10-13 (7.5-10.1)
Oil Pump Mounting Screw - 4.0 (2.9)
Rectifier-Regulator Mounting Screw - 6.0 (4.5)
Speed Control Bracket Assembly - 11.0 (8.2)
Governor Control Lever - 7.0-8.5 (5.2-6.3)
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CUB CADET TRACTORS SPECIFICATIONS |
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ENGINES FOR CUB CADET LAWN TRACTORS |
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CUB CADET TRACTORS TROUBLESHOOTING | ||||
1050 | 1863 | 2166 | 2182 | 2186 |
3184 | 3205 | GT1554 | GT2550 | GTX2100 |
LT1040 | LT1042 | LT1045 | LT1046 | LT1050 |
LT2180 | LTX1040 | LTX1042 | LTX1045 | LTX1046 |
LTX1050 | SLTX1054 | XT1 LT42 | XT1 LT46 | XT3 GSX |