單項(xiàng)選擇題

A.increasing cooling water flow
B.increasing lube oil flow
C.dilution by fuel oil
D.adding SAE 70 oil

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A.engine power losses
B.smoking due to unburned fuel
C.high exhaust temperature readings
D.all of the above

A.incorrect replacement of barrels and plungers of jerk pumps
B.overheating of the nozzle orifices
C.cracked pump housings
D.dirt in the fuel