Small Engine Parts Identification Test

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Small Engine Parts Identification Test
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1) ?

• -Holds the fuel for engine consumption
• -Sometimes houses Carburetor
• -Usually has a shut off valve
• -Can house a screen that can become impermeable
  due to varnish or trash

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2) ?

• Separates debris from air taken in during
  operation
• Does NOT separate water!
• Affects engine performance life
• Most cost effective service part found on any
  engine
• May use a pre-cleaner
• Various shapes and sizes
• Constructed of many different materials

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3) ?

• Mixes fuel with air to provide a combustible gas
• Depending on specific application a carburetor
  may be Up-draft, Down-draft, or Side-draft
• Can be found on fuel tank, but.
• Will always be fixed to an intake manifold that
  is fixed to the cylinder head or block
• May have multiple jets or barrels that regulate
  fuel consumption
• Will have either manual or electric choke

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4) ?

• Part of the ignition system that provides a
  spark to ignite fuel/air mixture during
  powerstroke
• Commonly misunderstood and misdiagnosed part
• Comes in many lengths and heat ranges
• Not all spark plugs are created equal

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5) ?

• Induces an electric current when rotated around a
  magnetic field
• Always mounted in respect to flywheel location
• Common ignition source of choice for newer
  carbureted engines
• Replaced breaker points ignition

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6) ?

• Volume of the cylinder above the piston in which
  combustion takes place
• Located mainly in the cylinder head

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7) ?

• Shaft containing lobe (cams) that open and close
  valves as the shaft rotates
• Controls engine timing (advance, Retard)
• Rotates in conjunction with the crankshaft

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8) ?

• Rod that connects the piston to the crankshaft
• Large end crank end (end w/bolts)
• Small end piston end
• Attaches to piston via the wristpin

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9) ?

• Housing for the crank, cam, etc.
• Base of the engine
• Contains engine oil
• Seal housing

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10) ?

• Main shaft of the engine
• Provides the reciprocating motion of the piston
• Outputs rotary motion to be used to do work (ie.
  Turn pulleys, blades, etc.)

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11) ?

• The bore in which the piston rides
• Usually made into the crankcase
• Generally the largest engine component

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12) ?

• Detachable portion of the engine that houses the
  combustion chamber
• Can house valve components (OHV engines)
• Always houses spark plug(s)

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13) ?

• Valve that permits exhaust to leave combustion
  chamber on exhaust stroke
• Always the smaller of the two valves (int, ex)

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14) ?

• Valve that permits air/fuel mixture to enter the
  combustion chamber on intake stroke
• Always the larger of the two valves (int.,ex)

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15) ?

• Cylindrical part with closed surface area on one
  end connected to the crankshaft via the
  connecting rod
• Forces fuel/air mixture into combustion chamber
• Exerts force back down to the crankshaft

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16) ?

• Part of the piston above the rings
• Can be flat , domed , or dished

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17) ?

• Expanding rings placed in the grooves of pistons
  to create a seal that keeps oil down and the
  fuel/air mixture up
• Never align the open ends when installing rings
• Ring types- compression
• oil

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18) ?

• Wheel bolted to one end of the crankshaft that
  maintains the speed of the engine during
  operation
• Sometimes used for engine balance
• Either used on work-end of the crankshaft or the
  free-end

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19) ?

• Used to keep the flywheel in place
• Also used as a breaker point in some ignition
  systems

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20) ?

• Used for both filling checking engine oil
• Always locate this plug before doing anything to
  any engine
• Service life begins Here!