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Cub Cadet 149 Engine
Cub Cadet 149 Engine Specifications
Engine Model - Kohler K321S
Engine Type - 4-Cycle, one cylinder air-cooled gasoline
Number of Cylinders - Single
Displacement, L (cu in) - 0.512 (31.3)
Engine Bore, mm (in) - 89.0 (3.50)
Engine Stroke, mm (in) - 82.6 (3.25)
Maximum Horse Power, hp (kW) - 14.0 (10.5)
Rated Engine Speed, rpm - 3600
Fuel System - Carburetor
Carburetor Model - Kohler/Walbro
Carburetor Type - Fixed main jet or adjustable main jet
Lubrication System - Splash type
Cooling System - Forced-air
Ignition System - Magneto or battery
Starter Type - Electric
Cub Cadet 149 Engine Maintenance Data
Valve Adjustment
Intake Valve Clearance - 0.20-0.25 (0.008-0.010)
Exhaust Valve Clearance - 0.43-0.48 (0.017-0.019)
Intake Valve Seat Width, mm (in) - 0.936-1.139 (0.037-0.045)
Exhaust Valve Seat Width, mm (in) - 0.936-1.139 (0.037-0.045)
Valve Face Angle, degrees - 45
Engine Oil and Filters
Engine Oil Type (Summer) - SAE 30W
Engine Oil Type (Winter) - SAE 5W-20, 5W-30
Oil Classification - API SF, SG
Oil Capacity, L (qts) - 2.21 (2.26)
Oil Filter Part Number - 12-050-01-S
Air Filter Part Number - 235116S
Kohler Carburetor Adjustment
Low Idle Fuel - 2-1/2 turns
High Idle Fuel - 3-1/4 turns
Low Idle Speed, rpm - 1200±75
High Idle Speed, rpm - 3600±50
Walbro Carburetor Adjustment
Low Idle Fuel - 1-1/8 turns
High Idle Fuel - 1-1/4 turns
Low Idle Speed, rpm - 1200±75
High Idle Speed, rpm - 3600±50
Ignition System
Spark Plug Type - Champion RH10
Spark Plug Size, mm (in) - 14.0 (0.553)
Spark Plug Gap, mm (in) - 0.65 (0.0256)
Breaker Point Gap (Nominal), mm (in) - 0.50 (0.020)
Cub Cadet 149 Engine Service Specifications
Cylinder Block
Sleeve Internal Diameter, mm (in) - 88.9127-88.8873 (3.5005-3.4995)
Piston Skirt Outside Diameter, mm (in) - 88.7501-88.7425 (3.4941-3.4938)
Top Compression Ring End Gap, mm (in) - 0.177-0.432 (0.007-0.017)
Second Compression Ring End Gap, mm (in) - 0.177-0.432 (0.007-0.017)
Connecting Rod Small End Inside Diameter, mm (in) - 22.2428-22.2504
(0.8757-0.876)
Piston Pin Outside Diameter, mm (in) - 22.2300-22.2352 (0.8752-0.8754)
Valves
Valve Clearance (Intake), mm (in) - 0.20-0.25 (0.0079-0.0099)
Valve Clearance (Exhaust), mm (in) - 0.43-0.48 (0.0169-0.0189)
Intake Valve Head Diameter, mm (in) - 34.798-35.052 (1.370-1.380)
Exhaust Valve Head Diameter, mm (in) - 28.448-28.702 (1.120-1.130)
Stem Outside Diameter (Intake, Std), mm (in) - 7.887-7.899
(0.3105-0.3110)
Stem Outside Diameter (Exhaust, Std), mm (in) - 7.833-7.851
(0.3084-0.3091)
Valve Guide Inside Diameter (Intake, Exhaust), mm (in) - 7.894-7.919
(0.312-0.313)
Valve Seat Angle (Intake, Exhaust), degrees - 89
Valve Seat Width (Intake), mm (in) - 0.936-1.139 (0.037-0.045)
Valve Seat Width (Exhaust), mm (in) - 0.936-1.139 (0.037-0.045)
Valve Guide Depth (Intake), mm (in) - 40.126 (1.586)
Valve Guide Depth (Exhaust), mm (in) - 37.874 (1.497)
Valve Face Angle (Intake, Exhaust), degrees - 45
Cub Cadet 149 Engine Tightening Torque Specs
Cylinder Head Bolts, Nm (ft-lbs) - 34-41 (25-30)
Flywheel, Nm (ft-lbs) - 68-81 (50-60)
Spark Plug, Nm (ft-lbs) - 25-30 (18-22)
Connecting Rod, Nm (ft-lbs) - 32.1 (23.8)
Governor Bushing, Nm (ft-lbs) - 11.2-13.6 (8.3-10.1)
Fuel Pump Mounting Screws, Nm (ft-lbs) - 4.2-5.1 (3.1-3.8)
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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 |