Technical data
OPERATION&MAINTENANCE MANUAL 
  44
2 spray instruction ill  check the spray pressure and 
atomization, if the 
fuel    pump is damaged, replace it 
3 inferior quality of fuel  Use    eligible fuel 
4 combustion incomplete  Main reason is :fuel pump atomizes 
bad, delivery fuel advanced angle 
incorrect, leakage at cylinder cover 
gaskets and low compression 
pressure. solute in accordance with 
specific problems 
4、knocking noise in engine 
causes remedies 
1 delivery fuel advance angle is incorrect  Adjust  the  angle  according  to  the 
specification 
2 air in fuel system  Exhaust air 
3 fuel supply imbalance among every 
cylinder 
Adjust injector pump to proper supply 
4 inferior quality fuel  replace to eligible fuel 
5 parts are worn      exceed itself limit    replace the part 










