Changing reciprocating motion into rotary motion is the job of this "cranky" fellow:
What is the crankshaft?
This component, which is bolted to the engine cylinder head, is responsible for routing air to the combustion chambers.
What is the intake manifold?
This device controls the opening of the engine's valves:
What is a camshaft?
Engine blocks are generally made of these two metals.
What is cast iron or aluminum?
The tool pictured here is used to measure either rod or main bearing clearance:

What is Plastigauge?
This component is either gear, vane , or geroter type in its construction:
What is the oil pump?
This valve train component is long and hollow, and its condition can be tested by simply rolling it on a flat surface:
What are push rods?
The parts of the camshaft that are responsible for acting on the valve lifter, or cam follower in order to open the valves in the engine-or the lower parts of the human ear:
What are the lobes?
Be careful when installing these cast iron, steel, or chrome-moly coated components since they are brittle and can break very easily:
What are piston rings?
This measuring device consists of a thimble, barrel and an anvil and can give a reading in thousandths of an inch or in millimeters.
What is a micrometer?
The part of the engine that holds the oil:
What is an oil pan?
These cylinder head components may be filled with sodium on hi performance applications to aid in cooling.
What are exhaust valves?
This component is used to close the engines valve and keep them closed against the valve seat
What are valve springs?
This heavy component is usually made of cast iron, or in some vehicles, forged steel.
What is a crankshaft?
When measuring crankshaft end play this tools plunger should be loaded before any measurement is taken.
What is a dial indicator?
When installing a crankshaft, don’t mix up these or the engine will fail.
What are the main bearing caps?
The amount of time both the intake and exhaust valves are open, measured in degrees.
What is valve overlap?
This component is actuated by the engine pushrod and acts as a lever directly on the valve stem tip to open the valve
What is a rocker arm?
Engine bearings are made of this material, which is a mixture of tin, copper and antimony.
What is babbitt?
To measure piston ring end gap this tool will be used to help you “feel” the clearance.
What are feeler gauges?
This part of a split bearing that is used to locate the bearing in the crankshaft bore, and is also the name of an old time orange drink.
What is the bearing tang?
Popular in the 60s and 70s this combustion chamber design used by Chrysler is a term used for "half."
What is a hemi?
The maximum distance a valve is held off its seat when fully open is called this:
What is lift?
Be careful when installing these steel or chrome-moly components since they are brittle and can break very easily:
What are piston rings?
Name the tool and the measurement being performed in this photo:

What is a dial bore gauge measuring bearing clearance?