4 Stroke Engine Parts

Turns reciprocating motion (up and down) into rotary motion (round and round

• Camshaft
• Crankshaft
• Piston
• Valve

Fills the area of the engine called the Cylinder

• Lifter
• Filler
• Cam gear
• Piston

Camshaft turns at what speed compared to the crankshaft

• Same speed
• 1/2 Speed
• 2/1 Speed
• 1/1 Speed

The length the piston moves from top to bottom or bottom to top is called

• Stroke
• Bore
• Movement
• Lenght

The definition of a cam is.

• Something that moves a valve
• A stick with bumps
• A spinning piece of metal
• Circle with an offset hole.

What is the order of operation of a 4 stroke engine

• Intake, Power, Compression, Exhaust
• Exhaust, Intake, Compression, Power
• Intake, Compression, Power, Exhaust
• Compression, Exhaust, Power, Intake

What keeps the oil below the piston, and compression above the piston?

• Bearing
• Rings
• Necklaces
• Braclets

What is valve timing?

• opening the valve at the right time
• closing the valve at the right time
• opening and closing of the valve at the right time
• not important

If you wanted to change the stroke of the engine, you would have to change what engine part?

• Valves
• Piston
• Connecting Rod
• Crankshaft

Of the two valves inside the engine, which one is bigger?

• Intake
• Exhaust
• Same size
• Neither