1-S2
GL6000, GL7000, GL9000, GL11000, WSM
ENGINE
W1014322
Symptom Probable Cause Solution
Reference
Page
Either White or Blue
Exhaust Gas Is
Observed
Excessive engine oil Reduce to specified
level
G-9, 14
Piston ring and cylinder worn or stuck Repair or replace 1-S52, S57
Incorrect injection timing Adjust 1-S18
Deficient compression Adjust top clearance 1-S12
Either Black or Dark
Gray Exhaust Gas Is
Observed
Overload Reduce the load –
Low grade fuel used Use specified fuel G-9
Fuel filter clogged Replace G-18
Air cleaner clogged Clean or replace G-17, 24
Deficient nozzle injection Repair or replace
nozzle
G-23
Deficient Output Incorrect injection timing Adjust 1-S18
Engine’s moving parts seem to be seizing Repair or replace –
Uneven fuel injection Replace injection
pump
1-S20
Deficient nozzle injection Repair or replace
nozzle
1-S20
Compression leak Replace head
gasket, tighten
cylinder head screw,
glow plug and nozzle
holder
1-S12
Excessive Lubricant
Oil Consumption
Piston ring’s gap facing the same direction Shift ring gap
direction
1-S36
Oil ring worn or stuck Replace 1-S52
Piston ring groove worn Replace piston 1-S52
Valve stem and valve guide worn Replace 1-S44
Oil leaking due to defective seals or packing Replace –
Fuel Mixed into
Lubricant Oil
Injection pump’s plunger worn Replace injection
pump
1-S19
Deficient nozzle injection Repair or replace
nozzle
1-S20
Injection pump broken Replace 1-S19
Water Mixed into
Lubricant Oil
Head gasket defective Replace 1-S31
Cylinder block or cylinder head flawed Replace 1-S43