Kubota B1830 Workshop Manual page 103

B1830,B2230,B2530,B3030, WSM
Symptom
Either White or Blue
Exhaust Gas Is
Observed
Either Black or Dark
Gray Exhaust Gas Is
Observed
Deficient Output
Excessive Lubricant
Oil Consumption
Fuel Mixed into
Lubricant Oil
Water Mixed into
Lubricant Oil
Probable Cause
Excessive engine oil
Piston ring and cylinder worn or stuck
Incorrect injection timing
Deficient compression
Overload
Low grade fuel used
Fuel filter clogged
Air cleaner clogged
Deficient nozzle injection
Incorrect injection timing
Engine's moving parts seem to be seizing
Uneven fuel injection
Deficient nozzle injection
Compression leak
Piston ring's gap facing the same direction
Oil ring worn or stuck
Piston ring groove worn
Valve stem and valve guide worn
Oil leaking due to defective seals or packing
Injection pump's plunger worn
Deficient nozzle injection
Injection pump broken
Head gasket defective
Cylinder block or cylinder head flawed
Reduce to specified
level
Repair or replace
Adjust
Repair
Reduce the load
Use specified fuel
Replace
Clean or replace
Repair or replace
nozzle
Adjust
Repair or replace
Replace injection
pump
Repair or replace
nozzle
Replace head gasket,
tighten cylinder head
screw, glow plug and
nozzle holder
Shift ring gap
direction
Replace
Replace piston
Replace
Replace
Replace injection
pump
Repair or replace
nozzle
Replace
Replace
Replace
1-S2
ENGINE
Reference
Solution
Page
G-14
1-S48,
1-S65
1-S17
1-S12,
1-S60,
1-S60,
1-S65
–
–
G-27
G-40
1-S18 to
1-S19
1-S17
–
1-S44
1-S18 to
1-S19
1-S40 to
1-S42
1-S47
1-S48
1-S48
1-S52
–
1-S44
1-S18 to
1-S19
1-S44
1-S41
1-S41
KiSC issued 05, 2012 A