wsm Kubota L4100, Workshop Manual

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ENGINE L4100, WSM
1-S2
(EU)
Either White or Blue
Exhaust Gas Is
Observed Excessive engine oil Reduce to specified
level G-9
Piston ring and cylinder worn or stuck Repair or replace 1-S35,
1-S56
Incorrect injection timing Adjust 1-S15
Deficient compression Adjust top clearance 1-S11
Either Black or Dark
Gray Exhaust Gas Is
Observed Overload Loosen load –
Low grade fuel used Use specified fuel G-9
Fuel filter clogged Change G-25
Air cleaner clogged Clean or replace G-24
Deficient nozzle injection Repair or replace
nozzle 1-S16
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
nozzle 1-S15
Deficient nozzle injection Repair or replace
nozzle 1-S15
Compression leak Replace head gasket,
tighten cylinder head
bolt, glow plug and
nozzle holder 1-S27,
1-S28
Excessive Lubricant
Oil Consumption Piston ring's gap facing the same direction Shift ring gap
direction 1-S35
Oil ring worn or stuck Replace 1-S35
Piston ring groove worn Replace the piston 1-S35,
1-S51
Valve stem and valve guide worn Replace 1-S43
Oil leaking due to defective seals or packing Replace –
Fuel Mixed into
Lubricant Oil Injection pump's plunger worn Replace pump
element or pump –
Deficient nozzle injection Repair or replace
nozzle 1-S15
Injection pump broken Replace 1-S29
Water Mixed into
Lubricant Oil Head gasket defective Replace 1-S28
Cylinder block or cylinder head flawed Replace –
Symptom Probable Cause Solution
Reference
Page
KiSC issued 08, 2012 A