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Tecumseh LEV120 Engine

General Technical Data

Tecumseh LEV120 Engine Specifications

Engine Model ........... Tecumseh LEV120
Engine Type ........... 4-cycle L-head 1-cylinder low emissions vertical air-cooled gasoline engine
Number of Cylinders ........... Single
Displacement, cu.in (cc) ........... 11.90 (195.04)
Cylinder Bore, in (mm) ........... 2.80 (71.0)
Piston Stroke, in (mm) ........... 1.94 (49.2)
Rated Engine Power, hp (kW) ........... 6.5 (4.8)
Rated Engine Speed, rpm ........... 3600
Crankshaft ........... Iron alloy
Cylinder ........... Cast iron alloy
Lubrication System ........... Full pressure
Air Cleaner ........... Paper element
Cooling System ........... Forced air
Ignition System ........... Electronic
Fuel System Type ........... Carburetor
Carburetor ........... Float type
Governor Type ........... Mechanical
Electrical System Rating, Volts ........... 12

Dimensions and Weight

Overall Length, in (mm) ........... 16.4 (415)
Overall Width, in (mm) ........... 12.4 (314)
Overall Height, in (mm) ........... 10.2 (258)
Net Weight, lbs (kg) ........... 19.0 (8.5)

Tecumseh LEV120 Maintenance Data

Cylinder Block and Valves

Cylinder Bore Inside Diameter (Maximum), in (mm) ........... 2.796 (71.018)
Cylinder Head (Max. Out of Flatness), in (mm) ........... 0.005 (0.127)
Intake Valve Clearance, in (mm) ........... 0.004-0.008 (0.10-0.20)
Exhaust Valve Clearance, in (mm) ........... 0.004-0.008 (0.10-0.20)

Engine Oil and Filter

Engine Oil Type (Summer) ........... SAE 30, 10W-30
Engine Oil Type (Winter) ........... SAE 5W-30
API Service Classifications ........... SF, SG, SH, or SJ
Oil Capacity, qts (L) ........... 0.66 (0.62)
Air Filter Element Part Number ........... 35066/36905

Carburetor Adjustments

Main Pre-Set ........... Fixed jet
Idle Pre-Set ........... Fixed jet
Low Idle Speed, rpm ........... 1600-1800
High Idle Speed, rpm ........... 3600-3900

Ignition System

Spark Plug Type ........... Champion RJ19LM
Spark Plug Gap, in (mm) ........... 0.030 (0.762)
Breaker Point Gap, in (mm) ........... 0.020 (0.508)
Spark Plug Torque, Nm (ft-lbs) ........... 21 (28.5)

Service Intervals

Service Air Cleaner Element ........... Every 25 hours
Change Engine Oil ........... Every 25 hours
Clean Cooling Fins ........... Every 25 hours
Check and Adjust Spark Plug ........... Every 100 hours
Replace Air Cleaner Element ........... Every 100 hours
Check Carburetor Adjustment ........... Every 100 hours
Check and Adjust Valve Clearance ........... Every 200 hours
Replace Spark Plug ........... Every 200 hours

Tecumseh LEV120 Service Data

Cylinder Bore (Standard), in (mm) ........... 2.795 (70.993)
Cylinder Bore (Maximum), in (mm) ........... 2.796 (71.018)
Cylinder Main Bearing, in (mm) ........... 1.0005-1.0010 (25.413-25.425)
Cylinder Cover/Flange Main Bearing Diameter, in (mm) ........... 1.0005-1.0010 (25.413-25.425)
Valve Clearance, in (mm) ........... 0.004-0.008 (0.102-0.203)
Valve Seat Width, in (mm) ........... 0.066-0.086 (1.676-2.184)
Valve Seat Angle, deg ........... 46
Crankshaft End Play, in (mm) ........... 0.005-0.027 (0.127-0.686)
Crankpin Journal Diameter, in (mm) ........... 0.9995-1.0000 (25.387-25.400)
Crankshaft Magneto Main Bearing Diameter, in (mm) ........... 0.9985-0.9990 (25.362-25.375)
Crankshaft PTO Main Bearing Diameter, in (mm) ........... 0.9985-0.9990 (25.362-25.375)
Camshaft Bearing, in (mm) ........... 0.4975-0.4980 (12.637-12.649)
Connecting Rod Diameter (Crank Bearing), in (mm) ........... 1.0005-1.0010 (25.413-25.425)
Piston Diameter Bottom Of Skirt, in (mm) ........... 2.790-2.792 (70.866-70.917)
Ring Groove Side Clearance (1st and 2nd Compession Rings), in (mm) ........... 0.005 (0.127) Maximum
Ring Groove Side Clearance (Oil Ring), in (mm) ........... 0.0035 (0.089) Maximum
Piston Skirt Clearance, in (mm) ........... 0.003-0.006 (0.076-0.152)
Spark Plug Gap, in (mm) ........... 0.030 (0.762)

Tecumseh LEV120 Tightening Torque Specs

Cylinder Head Bolts, ft-lbs (Nm) ........... 16.5 (22.5)
Connecting Rod Bolts, ft-lbs (Nm) ........... 8.5 (11.5)
Cylinder Cover or Flange, ft-lbs (Nm) ........... 9.5 (13)
Flywheel Nut (Aluminum), ft-lbs (Nm) ........... 37.5 (51)
Spark Plug, ft-lbs (Nm) ........... 21 (28.5)
Ignition Mounting (Direct to Cylinder), ft-lbs (Nm) ........... 4 (5.5)
Intake Pipe to Cylinder, ft-lbs (Nm) ........... 8 (11)
Carburetor to Intake Pipe, ft-lbs (Nm) ........... 6 (8)
Muffler Mounting Shoulder Screw, ft-lbs (Nm) ........... 8.5 (11.5)
Recoil Starter Top Mount and 8-32 Thread Forming, ft-lbs (Nm) ........... 2 (2.7)
Recoil Starter (Top Mount), ft-lbs (Nm) ........... 4 (5.5)
Electric Starter To Cylinder, ft-lbs (Nm) ........... 5.5 (7.5)