Tecumseh hm80

The Tecumseh HM80 is a medium sizes horizontal 8 HP engine through Mechanical Compression Release. This engine contains a rise carburettor through choke and also bowl drain. The engine is began via basic pull recoil starter and electronic CDI ignition system. The engine cylinder sleeve is cast iron and also the muffler is aluminium.

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The Tecumseh HM80 engine is used for eye blower, eye thrower, lawn mower and also generator applications.While operation HM 80 engine that is advised the high quality and clean detergent need to be used. High quality engine oil help in acquiring smoother performance and also longer life.

The fuel that is compelled to be supplied with the Tecumseh hm80 engine have to be unleaded premium or unleaded continual fuel. You have to avoid utilizing leaded fuel as it can lead come severe damage from inside. With proper and regular usage of fuel and oil this engine can deliver optimum performance. This 8 equine power engine uses 19.41 Cu in displacement and also has acquired 26 Oz oil capacity.

In order to know an ext about the Tecumseh HM80 engine, you have the right to refer to the diagram pointed out below

Bore & Stoke3.1250" x 3.125"
Displacement19.41 cu in
Oil Capacity26 oz
Weight56 lbs
Bolt Mounting Circle3.625" x 5"
Timing dimension B.T.D.C0.09"
Point Setting0.020"
Spark Plug Gap0.030"
Valve chair Angle46 deg
Valve Clearance0.008" - 0.012"
Valve seat Width0.042" - 0.052"
Valve overview Oversize Dimension0.3432" - 0.3442"
Crankshaft finish Play0.005" - 0.027"
Crankpin journal Diameter1.1860" - 1.1865"
Crankshaft key Bearing Diameter0.9985" - 0.9990"
Crankshaft P.T.O main Bearing Diameter1.1870" - 1.1875"
Camshaft Bearing0.6230" - 0.6235"
Connecting pole Diameter Crank Bearing1.1880" - 1.1885"
Piston Diameter Bottom of Skirt3.1195" - 3.1205"
Ring Groove side Clearance Bottom Oil 1st and second Comp.

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0.002" - 0.005"
Ring Groove side Clearance Bottom Oil Bottom Oil0.010" - 0.020"
Piston skirt Clearance0.0045" - 0.0065"
Ring finish Gap0.010" - 0.020"
Cylinder key Bearing1.0005" - 1.0010"
Cylinder covering / Flange key Bearing Diameter1.1890" - 1.1895"

Tecumseh HM80 Engine Diagram


The Tecumseh HM80 has actually a number of applications consisting of Yard pro lawn mowers, Ariens Sno-Thro snow throwers, Coleman Powermate portable generators, Garden way rototillers and also mini-tillers, Bolen’s tractors and also snowthrowers, and also Generac generators. This website provides exploded components lists for her HM80 engine.