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Tecumseh TVM140 Engine

General Technical Data

Tecumseh TVM140 Engine Specifications

Engine Model ........... Tecumseh TVM140
Engine Type ........... 4-cycle L-head single-cylinder vertical medium frame air-cooled gasoline engine
Number of Cylinders ........... 1
Displacement, cu.in (cc) ........... 13.53 (221.76)
Cylinder Bore, in (mm) ........... 2.63 (66.7)
Piston Stroke, in (mm) ........... 2.50 (63.5)
Rated Engine Power, hp (kW) ........... 6.0 (4.5)
Rated Engine Speed, rpm ........... 3600
Crankshaft ........... Iron alloy
Cylinder ........... Cast iron alloy
Lubrication System ........... Full pressure by positive displacement oil pump
Air Cleaner ........... Paper/poly element
Cooling System ........... Forced air
Ignition System ........... Electronic
Starting System ........... Electric starter w/rewind
Electrical System Rating, Volts ........... 12

Fuel System

Fuel System Type ........... Carburetor
Carburetor Type ........... Diaphragm
Governor Type ........... Mechanical

Tecumseh TVM140 Maintenance Data

Cylinder Block and Valves

Cylinder Bore Inside Diameter (Maximum), in (mm) ........... 2.6260 (66.700)
Cylinder Head (Max. Out of Flatness), in (mm) ........... 0.005 (0.127)
Intake Valve Clearance, in (mm) ........... 0.008-0.012 (0.20-0.31)
Exhaust Valve Clearance, in (mm) ........... 0.008-0.012 (0.20-0.31)

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) ........... 0.86 (0.81)
Air Filter Element Part Number ........... 35403/35404

Carburetor Adjustments

Main Pre-Set ........... 1 turn
Idle Pre-Set ........... 1 turn
Low Idle Speed, rpm ........... 1500-1700
High Idle Speed, rpm ........... 3400-3700

Ignition System

Spark Plug Type ........... Champion RJ8C
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 TVM140 Service Specifications

Cylinder Bore (Standard), in (mm) ........... 2.6250 (66.675)
Cylinder Bore (Maximum), in (mm) ........... 2.6260 (66.700)
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) ........... 0.008-0.012 (0.203-0.305)
Valve Seat Width, in (mm) ........... 0.042-0.052 (1.067-1.321)
Valve Guide Oversize Dimensions, in (mm) ........... 0.3432-0.3442 (8.717-8.743)
Valve Seat Angle, deg ........... 46
Crankshaft End Play, in (mm) ........... 0.005-0.027 (0.127-0.686)
Crankpin Journal Diameter, in (mm) ........... 1.0615-1.0620 (26.962-26.975)
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) ........... 0.6230-0.6235 (15.824-15.837)
Connecting Rod Diameter (Crank Bearing), in (mm) ........... 1.0630-1.0635 (27.000-27.013)
Piston Diameter Bottom Of Skirt, in (mm) ........... 2.6210-2.6215 (66.573-66.586)
Ring Groove Side Clearance (Compession Rings), in (mm) ........... 0.002-0.005 (0.051-0.127)
Ring Groove Side Clearance (Oil Ring), in (mm) ........... 0.001-0.004 (0.025-0.102)
Piston Skirt Clearance, in (mm) ........... 0.0030-0.0048 (0.076-0.122)
Ring End Gap, in (mm) ........... 0.010-0.020 (0.254-0.508)

Tecumseh TVM140 Torque Specifications

Cylinder Head Bolts, ft-lbs (Nm) ........... 16.5 (22.5)
Connecting Rod Bolts, ft-lbs (Nm) ........... 14 (19)
Cylinder Cover or Flange, ft-lbs (Nm) ........... 9.5 (13)
Cylinder Cover or Flange (Powerlok), ft-lbs (Nm) ........... 10.5 (14)
Flywheel Nut, ft-lbs (Nm) ........... 40 (54)
Spark Plug, ft-lbs (Nm) ........... 21 (28.5)
Ignition Mounting (to Stud), ft-lbs (Nm) ........... 4 (5.5)
Intake Pipe to Cylinder, ft-lbs (Nm) ........... 10 (13.5)
Carburetor to Intake Pipe, ft-lbs (Nm) ........... 6 (8)
Muffler Mtg., ft-lbs (Nm) ........... 10 (13.5)
Muffler Mtg. Flanged, ft-lbs (Nm) ........... 6.5 (9)
Magneto Stator To Cylinder, ft-lbs (Nm) ........... 5.5 (7.5)
Recoil Starter (Top Mount), ft-lbs (Nm) ........... 4 (5.5)
Electric Starter To Cylinder, ft-lbs (Nm) ........... 5.5 (7.5)
Electric Starter To Cylinder, ft-lbs (Nm) ........... 8 (11)