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Purpose of Motor Mounts in a Vehicle?


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Purpose of Motor Mounts in a Vehicle?

What Is the Purpose of Motor Mounts in a Vehicle?

Your car engine is connected to a number of parts and the frame of the vehicle. However, if this framework was just a matter of nuts and bolts, you would feel every jar, bank and bump the car goes over. And your engine would likely break the part of the frame it sits on very quickly. This issue is solved with the use of motor mounts. These parts bridge the connection between the engine and the car frame and are a very important component.

motor mounts

What Motor Mounts are For

Motor mounts as a vehicle part are essentially a very simple design. In layman’s terms, the part basically involves attachment plates made of metal with a rubber block between that acts as a cushion or insulation from physical shock. The rubber piece absorbs the vibration impacts and the metal plates connected to the rubber bolt to the car frame and the engine block. By using this isolation design, the driver and passenger inside the car is not affected by all the jarring and noise and vibration transfer that make take place as the engine does its work. Without the mounts, the engine vibration and movement would making driving extremely uncomfortable.

motor mounts  manufacturer india

The Signs of Pending Failure

When the motor mount completely fails, a couple of possible results can occur. The first is that the rubber block separates completely from one or both of the metal plates in the part. The engine will not fall to the ground, but it will now be able to move significantly as the engine revs and drives. This engine block wiggling within the car frame will be very noticeable, with erratic banging and clunking noises and vibration. It will be most noticeable as the demand on the engine increases (torque) or accelerates (speed). The next failure type is the engine begins to bang against other parts. A common impact will be the engine colliding or banging into the radiator or related parts. In addition, various connecting parts to the engine will get pulled on or will break. This will and can include belts, hoses, intake and outtake manifolds and other related components. The third symptom will be a very excessive amount of engine vibration augmented when the engine is sped up or increases in torque.


In severe cases, the exhaust manifold can be bent or torn off from the engine block due to a failed motor mount. On front-wheel drive type vehicles, steering will be significant affected. In some extreme cases the engine block itself will swing far enough to damage other moving parts and cause critical vehicle failure while in motion.

Repair and Costs

As noted earlier, the repair process involves taking out the old motor mounts and replacing them with brand new ones. The engine block must be lifted to take the weight off the old mounts.

Climax Overseas as CMX Group of Comanies is an ISO/TS 16949 certified company serving more than a 100 OEM customers in 51 countries over 5 continents, producing more than 124 million components annually, spread over 4 plants with a strong team of over 350 people. We are primarily in Rubber, Plastic, Polyurethane and Sheet Metal components space and specialise in Suspension Bushings, Oil Seals, Gaskets, Grommets, Anti Vibration Pads etc . Currently we serve the Automotive, Railway, Power T&D, White Goods, Food Processing, Aerospace and Defence Industries. Contact Us

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