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Across 5. filters out the impurities which get into the oil 10. cylindrically shaped component that presses against the lobe of a camshaft and moves up and down as the cam lobe rotates 11. adjusting the position of the camshaft to the crankshaft so that the valves will open and close at the proper time 12. stores the oil 13. the rod that connects the valve lifter to one end of the rocker arm. Used on valve-in-head installations where the cam is below the piston and the valves are above the piston. The rods are moved by the cam and activate the valve lifter 14. a substance, usually a fluid, used to remove heat 16. supplies engine oil to the rotating and sliding parts of the engine 17. measured gap between the end of the valve stem and the rocker arm, cam lobe or follower that activates the valve

Down 1. pumps the oil to each part of the engine 2. detects the oil pressure 3. controls the maximum oil pressure 4. receptacle for holding engine oil 5. measures the oil level to the oil pan 6. a curved lever that pivots in the middle. One end is attached to the top of the valve stem. In overhead-valve engines the other end is attached to the pushrod. In some overhead-cam engines the other end is attached directly to the camshaft lobe. As the camshaft rotates, it pivots causing the valves to open and close. 7. a small ball (like a ball bearing) often made of metal or plastic, found in a check valve to halt the progress of fluid in a certain direction. 8. a spring-loaded jockey pulley or idler pulley designed to take up the slack in the timing belt 9. the property of a fluid that resists the force tending to cause the fluid to flow. 15. screw used to adjust the clearance between the valve stem and the lifter or the rocker arm; valve lifter itself