Abnormal Noise In Engine While Running - Kipor KM2V80 Manual

３. Blocked fuel filter element
４ .No electricity of fuel pump electron
magnetic stop valve, and cut the fuel
supply
５. Fuel pump does not work properly
６. Damaged fuel injection pump
７.No rotation of crankshaft
（1） Broken plain journal bearing of piston,
blocked cylinder
（2）Low oil pressure or broken bearing
and plain journal bearing
（3）Fault oil pump
（4）Air valve head missed, broken piston,
cylinder cover, cylinder head
Table 33 Abnormal noise in engine while running
Fault
symptom
１. Large air valve clearance, with knock
２ .Large clearance between piston and
cylinder, with knock noise
３ .Large radial clearance between main
bearing and connecting rod bearing, with
Abnormal
knock noise
noise in
engine ４.Large clearance between piston pin and
while
head bushing hole of connecting rod
running
５ .Large clearance between piston ring
and ring slot
６ .Large clearance of crankshaft axial
direction, crankshaft is loosen in portrait
direction
７. Air valve touches piston
Cause
Replace fuel filter element
Check circuit and electron magnetic stop
valve
Replace fuel pump
Replace fuel injection pump
Disassemble and check the engine
Check and repair
technician
Check and repair
technician
Check and repair
technician
Check and repair
technician
Remedy
Check and adjust air valve clearance
Check and replace worn out parts, keep
regular clearance
Check the crankshaft, and replace
bearing
Check and replace connecting rod
bushing and piston pin
Replace piston and piston ring
Replace thrust plate
by professional
by professional
by professional
by professional