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Vehicle weapon common cause leakage analysis the precautionary approach

- Mar 13, 2017 -

In the use of vehicles, oil spills often occur, it will directly affect the car's performance, results in wasted lubricant, fuel, consumes power, affect vehicle appearance neat, cause environmental pollution.

Due to reduced oil spills, engine lubricating oil, leading to poor lubrication of the mechanical parts, insufficient cooling, it will cause the early damage to parts, and even accidents.

A, common vehicle the main cause of oil spills
1. Products (accessories) poor quality, material or technology; design problems.
2. Improper Assembly of high-speed, mating surface is not clean, liner breakage and displacement operation specification or is not installed.
3. Uneven fastening nut, sliding off buckle or loose open loss leads to failure.
4. Wear after long term use of sealing material surplus, aging deterioration or deformation.
5. Lubricants add too much oil, oil level too high or a mistake.
6. Parts (cover, thin-walled parts) engagement surface deflection, shell damage, make the oil seeps.
7. Vent-plug, check valve blocked, due to the case of internal and external air pressure difference, often lead to weak seal leaking.

Second, vehicle oil spill prevention measures
1. Emphasis on cushioning effect. Car static sites (like the jointed face, side cover, shell, shaded pad, flat enamel cover) gasket leak-proof seal between the parts. In materials, production quality and the installation does not meet the technical specifications, it will not seal leak or accident. Oil pan or valve covers, because the contact area is large and difficult to compact, resulting in oil spills.
2. Car fastening nuts are in accordance with the prescribed torque of tightening. Too loose not tight gasket leak; tight makes metal around the hole raised or slide the threaded screw caused oil spills. In addition, the oil pan drain plug screw is not tightened or loose back off, likely to cause loss of engine oil, and "burning axle" machine damage.
3. Replacing a failed oil seals in a timely manner. Many replacement parts on the vehicle (for example, oil seals, O-rings) will install the wrong, shaft and seal cutting edge not concentric, swing and oil leakage. Some oil seal used for too long will lose its elasticity due to rubber. Found the leak should be updated in a timely manner.
4. Avoid a swing-pass valve blocked. The resulting temperature within the tank shell, oil and gas fills the entire space, emissions are not out, so that the pressure in the tank shell increases oil consumption increased, and shortening the replacement cycle. After the blockage of the ventilation system of the engine, increasing the resistance to motion of the piston, the increased fuel consumption. Due to the case of internal and external air pressure difference, often lead to weak seal leaking. Therefore it is necessary to make regular inspections of vehicles, dredging and cleaning.
5. Proper settlement of all kinds of pipe joints. Auto Union nut is often disassembly, easy slide broken buckles and loose, it will cause oil leakage. Replace the Union nut, grinding method is used to resolve its Cone, nut clamping solution sealing.
6. Avoid wheel oil. Hub bearings and lubrication of the cavity too much oil, or oil seal Assembly inappropriate, poor quality and aging; frequent cause of brake wheel hub temperature too high; loose will cause the wheel axle nut oil. So to use "cavity lubrication method (that is, adequate lubrication)" clear the ventilation holes.

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