Operation and Maintenance Manual for PowerKit 6M16 Series
34 of 40
5.2.6Engine exhaust gas is white or blue
Cause
Troubleshooting
(1)
Poor fuel quality with excessive moisture
Replace fuel.
(2)
Coolant temperature is too low
Check the operating temperature of the thermostat.
Replace it if necessary
(3)
Sealing ring of turbocharger damaged
Check and replace
(4)
Thrust bearing of turbocharger damaged
Check and replace
(5)
Oil return pipe of turbocharger clogged
Wash or repair
(6)
Instable atomization of fuel injector
Check and repair
(7)
Low
compression
pressure,
incomplete
combustion, piston scuffing
Check the piston rings, cylinder liner and cylinder
gasket. Repair the damaged ones
(8)
piston ring and cylinder liner
Continue running-in
(9)
Piston ring gaps are not staggered
Adjust or reassemble
(10)
Oil control ring failure
Replace
(11)
Excessive clearance between piston and cylinder
liner
Repair, replace
5.2.7 Oil gathering at the air inlet port and inlet pipe of turbocharger
Cause
Troubleshooting
(1)
Turbocharger sealing failure
Repair or replace
(2)
Oil-gas separator failure
Replace
(3)
Oil pan liquid level is too high, excessive oil
Check and release appropriate amount of oil
