What Causes Diesel Fuel on Old Diesel Generator to Mix with Engine Oil?
The fuel and oil of the
diesel generator have a completely different function. They can't be mixed.
Once the fuel and oil are mixed, it means that the seal of the unit has gone
wrong, which happens from time to time in use. Today starlight will introduce
to you how to do with this kind of situation.
1, oil pump membrane rot
or degumming, so that diesel oil into the oil tank and oil mixing. When the oil
pump is removed and the pressure is added to the oil inlet and outlet pipes on
the oil pump test bench, if no leakage of diesel oil is found, the pump is in
good condition.
2. The injector has low
opening pressure and poor atomization, which causes diesel oil to flow into the
oil pan and oil along the cylinder wall. The injector is removed and tested on
the test bench of high pressure oil pump. If the fuel injection pressure of the
injector meets the requirements and the atomization is good, the injector is in
good condition, otherwise, it will be repaired or replaced.
3.The oil leakage at the
front end of the fuel injection pump, that is, the oil seal at the front end of
the fuel injection pump is invalid, the check hole cover of the gear chamber
cover is removed. If a large quantity of diesel oil is ejected from behind the
driving gear of the fuel injection pump, it can be concluded that the diesel
oil is mixed with oil from the oil bottom shell from the leaking oil pump. When
the fuel injection pump is removed and tested on the test stand of high
pressure oil pump, the oil seal at the front gear journal of many fuel
injection pumps is deformed, a large amount of diesel oil is leaking, and when
the oil seal seat has the disassembly gear, The marks (indentation) of the
screw top by special tool deform the oil seal and seal, causing the leakage of
diesel oil, finally replacing the fuel injection pump, the trouble can be dealt
with.
The fuel and oil mixture
of the diesel generator set is difficult to find in the early stage, so you
must not be careless when observing the operating condition of the unit and the
routine maintenance, do not wait until the situation is serious to go to
repair, that increases the repair difficulty.
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