Auto 10 Study Sheet #2

AUTO 10 STUDY SHEET #2 SECTION Looking Inside the Engine P28 – 30 Answer in complete sentences.

1. What are all automotive engines classed as? All automotive engines are classed as internal combustion motors. 2. To turn the engine, how is the starter connected to the engine? The starter is geared to a toothed ring that is fitted on the flywheel. 3. Air-fuel must travel from the _carburetor_ through the _intake port__ to the cylinders. (Look at the diagrams carefully on pages 28 – 30.) 4. The camshaft operates what components of the engine? The camshaft operates the push rods, rocker arms and valves as well as the oil pump on most motors. 5. How is the camshaft driven? The camshaft is driven from a belt or chain from the crankshaft. 6. What does the water pump do? The water pump circulates water throughout the water jacket. 7. What does the thermostat do? The thermostat restricts coolant passage to the radiator until the engine warms up. 8. The cylinder head basically is the roof or top of the combustion chamber. What parts are contained in the cylinder head? (Look at the diagrams carefully on pages 28 – 30 to get a full list of the parts.) Rocker arms, thermostat, oil filler cap, rocker shaft, pcv Valve, rocker cover, valve springs, push rods, water jacket, intake valve, exhaust valve, intake and exhaust ports and combustion chambers. 9. The distributor delivers electricity to the spark plugs. What do the intake and exhaust manifolds do? The intake manifold provides a passage for the air fuel mixture from the carburetor to the cylinder head. The exhaust manifold receives the burned gases that are expelled from the cylinder. 10. Why is it important to change the oil filter periodically? Once the oil filter is dirty it uses a bypass valve and no longer helps to clean the oil. 11. What parts does the v-belt at the front of the engine drive? The v-belt drives the fan water pump and alternator from the crankshaft pulley.