In a vehicle, what powers the vehicle ahead is the engine. How will the engine provide all the power if it is not firmly held in place? This crucial job is done by the engine mountings that hold the power train in place while it generates all the power to help the vehicle cruise along the road. A lot of research is continuously taking place on this rather small but most significant part of any vehicle. The engines mountings hold the engine firmly to the main chassis of the vehicle, thus preventing it from flying off once the accelerator is pressed in.
Engine mountings consist of two steel plates. These plates can bear the tremendous vibration of the vehicle as the acceleration increases. There is also a strong bolt that is screwed in to the plates – one end of the bolt is firmly sealed in the engine body, while the other end passes through the chassis into the second plate and is held in place with a lock nut. Between the two steel plates, is a thick rubber cushion known as bushing, which absorbs all the vibrations of the engine.
In fact, this is the primary shock absorber in the vehicle. As the engine revs up and moves the car forward, there is a huge power build up under the bonnet and the two mountings on the two sides of the engine holds this generator firmly in place. If there were, no engine mountings there would have been a huge noise under the bonnet, which would have been ripped off from the vehicle’s body, and the engine would have lunged forward and dropped off. Such is the power of these mountings that it not only holds the engine in place, the huge generator is never allowed to vibrate endangering the other components in the vehicle. More the vibration, more would be the ensuing noise, and the wear and tear of the vehicle body would be faster than normal.
Engine mountings today are becoming more and more sophisticated with more tough ingredients going into the hard steel to make it more load bearing and long lasting because the mounting is the last thing that any car owner would really like to worry about while driving. Mountings are made to last. They normally do not require a replacement throughout the life of the car. This of course depends on the type of roads and ruggedness that the vehicle has to pass through in the countryside.
Most American roads are sound and are made to allow fast movement of vehicles so in normal conditions cars are made to last a lifetime. However if you happen to live in the hilly terrains and have to commute between the city and your home every day that itself takes a lot of time, you would do better to keep a good check on the engine mountings along with all the other components of the vehicle. Get your car regularly checked by an expert mechanic who can locate cracks and the wearing away of the rubber bushings and advise replacements.