wsm B2420 - Page 74

ENGINE
B2420, WSM
1-S2
Either White or Blue
Exhaust Gas Is
Observed
Excessive engine oil Reduce to specified
level
G-15
Piston ring and cylinder worn or stuck Repair or replace 1-S49
Incorrect injection timing Adjust 1-S15
Deficient compression Adjust top clearance 1-S10
1-S49
Either Black or Dark
Gray Exhaust Gas Is
Observed
Overload Lessen load –
Low grade fuel used Use specified fuel G-8
Fuel filter clogged Clean or replace G-22
Air cleaner clogged Clean or replace G-22
Deficient nozzle injection Repair or replace
nozzle
1-S18
Deficient Output Incorrect injection timing Adjust 1-S15
Engine's moving parts seem to be seizing Repair or replace –
Uneven fuel injection Repair or replace
injection pump
1-S32
Deficient nozzle injection Repair or replace
nozzle
1-S18
Compression leak Replace head gasket,
tighten cylinder head
screw, glow plug and
nozzle holder
1-S10
Excessive Lubricant
Oil Consumption
Piston ring's gap facing the same direction Shift ring gap
direction
1-S49
Oil ring worn or stuck Replace 1-S49
Piston ring groove worn Replace piston 1-S49
Valve stem and valve guide worn Replace 1-S42
Oil leaking due to defective seals or packing Replace –
Fuel Mixed into
Lubricant Oil
Injection pump's plunger worn Replace pump
element or injection
pump
1-S32
Deficient nozzle injection Repair or replace
nozzle
1-S18
Injection pump broken Replace 1-S32
Water Mixed into
Lubricant Oil
Head gasket defective Replace 1-S29
Cylinder block or cylinder head flawed Replace 1-S29
Symptom Probable Cause Solution
Reference
Page
KiSC issued 06, 2012 A