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Push Rod A push rod is a connecting link in an operating mechanism. Two examples are the rod between the valve lifter and rocker arm on an overhead valve engine, and push rods at the piston ends which apply pressure to the brake shoes.
Parking Brake The mechanical hand- or foot-operated brake that prevents the vehicle from rolling or slipping when parked. The parking brake (or hand brake) holds one or more brakes continuously in the applied position.
Summary : The type of valvetrain arrangement in which the engine's camshaft(s) is in its cylinder head(s). When the camshaft(s) is placed close to the valves, the valvetrain components can be stiffer and lighter, allowing the valves to open and...
Overhead Valve (OHV) In an overhead valve (OHV) engine, the valves are mounted in the cylinder head, above the combustion chamber. Usually this type of engine has the camshaft mounted in the cylinder block, and the valves are opened and closed by...
Oil Gauge The dashboard gauge that indicates oil pressure. When this gauge lights up, it indicates a very low level of oil in the engine, which should immediately be replenished. The direct indicator of the condition of your engine.
Oil Filler Cap The oil filler cap is a plastic or metal cap that covers an opening into the valve cover. It allows you to add oil when the dipstick indicates that you need it.
Car Muffler The muffler serves to muffle the noise coming out of the engine. Exhaust gases leave the engine under extremely high pressure. If these gases escaped directly from the engine the noise would be tremendous.
Manifold to Exhaust Pipe Gaskets An exhaust manifold gasket seals the exhaust manifold to the cylinder head. On V6 and V8 engines, there are two exhaust manifolds and therefore require two manifold gaskets.
Main Bearings The main bearing secure the crankshaft in its place. The largest number of main bearings a crankshaft can have is one more than the number of cylinders, but it can have one less bearing than the number of cylinders.
Car Lighting Circuit The automobile lighting circuit includes the wiring harness, all the lights, and the various switches that control their use. The complete circuit of the modern passenger car can be broken down into individual circuits, each...