The purpose of car engine protection:
1. To protect the engine and, if possible, steering rods from random impacts on roads.
2. To cover the engine compartment from water, mud, snow, salt, etc.
Materials used to manufacture engine protections ensure the sufficient durability of protections, the thickness of which is no more than 5 mm. Depending on the model of a car, the weight of engine protections ranges from 6 to 8 kg. Protections are elastic and do not break even if exposed to strong impacts. If a car is run slowly on an obstacle, in the worst case it will overhang on the protection. The protection shall bend less than the gap between it and the car’s crankcase.
To prevent deformation of the car upon a very strong impact (the protection is stronger than the body), engine protection is fastened with special clamping units that simultaneously function as “safety-hatches”.
They are called “safety-hatches” because upon strong impact the rivets of the protection are cut off, the protection remains on an obstacle and the car moves away; at the same time, engine protection prevents damage to the bottom of the car, drive shaft, rear axle, etc.
As practice shows, engine protections are rarely broken in such cases; usually, car owners pick them up and reattach them.