Holes OFF: primarily in the following four holes.
Fuel cap vent. The hole plug, the fuel
tank is no longer open to atmosphere, the upper tank oil drop will occur due to
negative pressure, causing the supply interruption, the fuel impassioned
evaporation, so that greater than before pressure within the tank, the tank can
cause leakage at the switch, therefore, This hole is not blocked.
Crankcase vent hole. For pores clogged crankcase wear out
piled up, the crankcase pressure rise, makes oil leakage, high temperature
exhaust gas mixed with oil, will accelerate oil weakening, accelerated engine
wear, so be sure the service To clear this hole.
Pump vent hole. Vent hole on the pump
blockage can cause a small amount of diesel pusher and medium between the leakages
into the fuel pump, dilute the lubricant inside the casing, accelerated
component wear, therefore, this hole cannot be infertile.
Pump scuppers. If you plug this hole, no seepage of water
discharge pump, into the bearing seat, will accelerate bearing damage, so be
sure to clear the renovate this hole.
Running off.
Cold running. Remove the injector, use
force to drive diesel engine running, while checking oil pressure and
temperature of each constituent, pay attention to listen the sound of each
component, cold after running, while the temperature is high, release oil, oil
filter and oil passages clean.
Hot running. No load
heat run, pay concentration to working conditions and different parts of the
engine sound, the necessary heat load and the time running, always pay
attention to various parts of the sound and the oil port channeling gas, smoke,
and fuel injector back oil and found that the problem should be disqualified.
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