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Cub Cadet XT1 LT46 Engine
Cub Cadet XT1 LT46 Engine Specifications
Engine Model - Kohler 7000 Series KT725
Engine Type - Gasoline, 4-cycle, twin-cylinder, air-cooled, vertical
shaft
Number of Cylinders - 2
Displacement, cc (cu.in) - 725 (44.2)
Engine Bore, mm (in) - 83.0 (3.27)
Engine Stroke, mm (in) - 67.0 (2.64)
Rated Engine Power, hp (kW) - 22.0 (16.4)
Rated Engine Speed, rpm - 3600
Maximum Torque, Nm (ft-lbs) - 54.8 (40.4)
Torque Speed, rpm - 2600
Compression - 9.1:1
Carburetor Model - Keihin or 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
Electrical System Rating, Volts - 12
Cub Cadet XT1 LT46 Engine Maintenance Data
Valve Adjustment
Intake Valve Clearance (Cold), mm (in) - 0.10-0.15 (0.004-0.006)
Exhaust Valve Clearance (Cold), mm (in) - 0.10-0.15 (0.004-0.006)
Intake Valve Insert Outside Diameter - 36.987-37.013 mm (1.4562-1.4572
in)
Exhaust Valve Insert Outside Diameter - 32.987-33.013 mm (1.2987-1.2997
in)
Intake Valve Guide Depth - 4.00 mm (0.1575 in)
Exhaust Valve Guide Depth - 6.50 mm (0.2559 in)
Engine Oil and Filters
Engine Oil Type (Summer) - SAE 10W-30
Engine Oil Type (Winter) - SAE 5W-30
Oil Classification - 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 - 32-083-09-S
Carburetor Adjustment
Main Fuel - Not adjustable (Factory setting)
Idle Fuel - Not adjustable (Factory setting)
Low Idle Speed, rpm - 1750±75
High Idle Speed, rpm - 3600±50
Ignition System
Spark Plug Type - Champion RC12YC or NGK CS6
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 XT1 LT46 Engine Service
Specifications
Cylinder Block
Cylinder Bore Inside Diameter (Std) - 83.006-83.031 mm (3.2679-3.2689
in)
Cylinder Bore Inside Diameter (Wear Limit) - 83.069 mm (3.2704 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) - 0.076 mm (0.003 in)
Camshaft End Play - 0.06-0.40 mm (0.0024-0.0157 in)
Camshaft Clearance 0.040-0.077 mm (0.0016-0.0030 in)
Camshaft Bore Inside Diameter 20.000-20.025 mm (0.7874-0.7884 in)
Camshaft Bearing Surface Inside Diameter - 19.948-19.960 mm
(0.7854-0.7858 in)
Connecting Rod to Crankpin Clearance - 0.037-0.083 mm (0.0015-0.0033 in)
Connecting Rod to Crankpin Side Clearance - 0.261-0.67 mm (0.0102-0.0264
in)
Connecting Rod to Piston Pin Clearance - 0.013-0.032 mm (0.0005-0.0013
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)
Valve Face Angle (Intake/Exhaust) - 45 degrees
Valve Seat Angle (Intake/Exhaust) - 89 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)
Intake Valve Insert Outside Diameter - 36.987-37.013 mm (1.4562-1.4572
in)
Exhaust Valve Insert Outside Diameter - 32.987-33.013 mm (1.2987-1.2997
in)
Intake Valve Guide Depth - 4.00 mm (0.1575 in)
Exhaust Valve Guide Depth - 6.50 mm (0.2559 in)
Intake Valve Head Diameter - 33.37-33.63 mm (1.3138-1.3240 in)
Exhaust Valve Head Diameter - 29.37-29.63 mm (1.1563-1.1665 in)
Intake Valve Stem Diameter - 6.982-7.000 mm (0.2749-0.2756 in)
Exhaust Valve Stem Diameter - 6.970-6.988 mm (0.2744-0.2751 in)
Crankshaft
Crankshaft End Play (Free) - 0.075-0.595 mm (0.0030-0.0023 in)
Crankshaft Bore in Crankcase Inside Diameter - 40.974-40.987 mm
(1.6131-1.6137 in)
Crankshaft Bore in Oil Pan Inside Diameter - 40.974-40.987 mm
(1.6131-1.6137 in)
Flywheel End Main Bearing Journal Outside Diameter - 40.913-40.935 mm
(1.6107-1.6116 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)
Oil Pan End Main Bearing Journal Outside Diameter - 40.913-40.935 mm
(1.6107-1.6116 in)
Oil Pan End Main Bearing Journal (Max. Taper) - 0.020 mm (0.0008 in)
Oil Pan End Main Bearing Journal (Max. Out of Round) - 0.025 mm (0.001
in)
Crankshaft Bore in Oil Pan Clearance - 0.039-0.087 mm (0.0015-0.0034 in)
Crankshaft Bore in Crankcase Clearance - 0.039-0.087 mm (0.0015-0.0034
in)
Connecting Rod Journal Outside Diameter - 35.950-35.974 mm
(1.4154-1.4163 in)
Connecting Rod Journal (Max. Taper) - 0.018 mm (0.0007 in)
Connecting Rod Journal (Max. Out of Round) - 0.025 mm (0.001 in)
Crankshaft T.I.R (PTO End, Crankshaft in Engine) - 0.279 mm (0.0110 in)
Crankshaft T.I.R (Entire Crankshaft, in V-Blocks) - 0.200 mm (0.0079 in)
Piston and Piston Rings
Piston Pin Bore Inside Diameter - 17.006-17.012 mm (0.6695-0.6698 in)
Piston Pin Outside Diameter - 16.995-17.000 mm (0.6691-0.6693 in)
Piston Pin End Inside Diameter - 17.013-17.027 mm (0.6698-0.6704 in)
Top Compression Ring to Groove Side Clearance - 0.030-0.070 mm
(0.001-0.0026 in)
Middle Compression Ring to Groove Side Clearance - 0.030-0.070 mm
(0.001-0.0026 in)
Oil Control Ring to Groove Side Clearance - 0.060-0.190 mm
(0.0022-0.0073 in)
Top Compression Ring End Gap - 0.189-0.277 mm (0.0074-0.0109 in)
Middle Compression Ring End Gap - 1.519-1.797 mm (0.0598-0.0708 in)
Piston Thrust Face Outside Diameter - 82.978 mm (3.2668 in)
Piston Thrust Face to Cylinder Bore Clearance - 0.019-0.062 mm
(0.0007-0.0024 in)
Cub Cadet XT1 LT46 Engine Tightening Torque
Specs
Cylinder Head - 22.6-41.0 Nm (16.7-30 ft-lb)
Rocker Arm Pivot Stud - 11.3 Nm (8.4 ft-lb)
Flywheel Retaining Screw - 74.5 Nm (55 ft-lb)
Connecting Rod Cap - 11.5 Nm (8.5 ft-lb)
Oil Drain Plug - 13.6 Nm (10 ft-lb)
Fuel Pump - 2.8 Nm (2.1 ft-lb)
Electric Starter Mounting Nut - 5.2 Nm (3.9 ft-lb)
Ignition Module - 6.0 Nm (4.5 ft-lb)
Muffler Retaining Nuts - 24.4 Nm (18 ft-lb)
Oil Pan - 24.4 Nm (18 ft-lb)
Oil Pump Mounting Screw - 9.9 Nm (7.3 ft-lb)
Carburetor Mounting Nut - 6.2-7.3 Nm (4.6-5.4 ft-lb)
Governor Control Lever - 7.0-8.5 Nm (5.2-6.3 ft-lb)
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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 |