1, the nozzle back to the oil: fuel injector is a precision coupling, diesel dirty or if prolonged use, wear and tear due to appear back to the oil phenomenon: the replacement of the nozzle is very economical. To avoid missing oil return, can lead back to the return pipe to the oil tank, or the introduction of diesel filters. But it is easy to produce bubbles in the oil affect the oil supply. If the return pipe is damaged, can be used - section of plastic pipe into the oil container owned, filtered back into the tank.
2, some oil spill: hollow screw washer uneven pipeline oil spills, can unload the washer plant, polished and then mat. If not, it can be replaced with new gaskets, also can cut thicker materials, soft plastic gasket mat. Plastic and metal fittings at the oil pipeline, mostly plastic tube hardening or rupture caused. Hardening can be cut, broken in places, and then use a soft micro-fire, safe in the hot metal connector, and then fine wire truss. Metal oil pipeline rupture, can be a good brazing welding. In order to prevent pipeline rupture, tube curvature should be appropriate, not sit there straight installation of hard, pipe body and the body do not touch to avoid frayed.
A common vehicle leaking main reasons are:
2, the product (accessories) quality, material or workmanship is poor; structural design problems.
3, the assembly of high-speed properly, with the surface of the dirty, liner damage, displacement or failure to install standard operating procedures.
4, the ventilation plug, one-way valve plug, due to the pressure difference between inside and outside the tank shell effect, often causing weakness of oil seals.
5, the sealing material is too limited to long-term use, wear and tear, aging deterioration, deformation failure.
6, add too much oil, plus oil is too high or the wrong oil.
7, parts (side cover type, thin-walled parts) bonding surface deflection, shell damage, so that oil leakage.
1, vehicle regulations required all kinds of fastening nuts are tightened to a torque. Pressure is not too loose tight gasket leak; too tight will make the metal around the screw or threaded screw protruding slip caused by oil spills. In addition, the sump oil drain plug loose if not tightened or back off, likely to cause oil loss, and subsequent "Burnt axle" of engine damage accident.
2, attention liner effect. Car standing area (such as the bonding face, the end caps, shell, cover pad, flat enamel cover, etc.) between the liner components plays a role in leak-proof seal. If materials, production and installation of quality does not meet the technical specifications, it would not achieve the role of leak-proof seal, and even accidents. Such as the oil pan or valve covers, the contact area is large and easy to compaction, the resulting oil spill.
3, the timely replacement of failed oil seal. Many parts of the car moving home (such as oil seals, O-ring) due to improper installation, journal and seal edge misalignment, deflection and dumped oil. Some oil seal rubber used for a long time due to aging and loss of elasticity. Found that leakage should be promptly updated.
4, to avoid rejection of the oil hub. Wheel bearings (wheel hub bearing) and the cavity too much grease, or oil seal assembly inappropriate, poor quality and aging failure; frequent cause of wheel brake temperature is too high; axle nuts loosening.
5, and properly solve various types of pipe joints seals. Often with union nut car disassembly, easy to slip off the buckle and the loose wire would cause oil leakage. Replace