Kubota M105S, Workshop Manual

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1-S3
M105S, WSM ENGINE
W1010765
Symptom Probable Cause Solution
Reference
Page
Deficient Output Incorrect injection timing Adjust 1-S17
Engine's moving parts seem to be seizing Repair or replace –
Injection pump malfunctioning Repair or replace 1-S17, 33 to
36
Deficient nozzle injection Repair or replace
nozzle 1-18, 28
Compression leak Check the
compression pressure
and repair 1-S28 to 31
Gas leak from exhaust system Repair or replace 1-S26
Air leak from compressor discharge side Repair or replace 1-S27
Air cleaner dirty or clogged Clean or replace G-20
Compressor wheel turning heavily Replace the
turbocharger
assembly 1-S27
Excessive Lubricant
Oil Consumption Piston ring's gap facing the same direction Shift ring gap direction 1-S50
Oil ring worn or stuck Replace 1-S51, 66
Piston ring groove worn Replace piston 1-S51, 66
Valve stem and valve guide worn Replace 1-S57
Crankshaft bearing, and crank pin bearing worn Replace 1-S68 to 71
Oil leaking due to defective seals or packing Replace –
Fuel Mixed into
Lubricant Oil Injection pump's plunger worn Repair or replace 1-S17, 33 to
36
Deficient nozzle injection Repair or replace
nozzle 1-S18, 28
Injection pump broken Replace 1-S18, 33 to
36
Water Mixed into
Lubricant Oil Head gasket defective Replace 1-S30, 31
Cylinder block or cylinder head flawed Replace 1-S55
Low Oil Pressure Engine oil insufficient Replenish G-8, 15
Oil strainer clogged Clean 1-S48
Relief valve stuck with dirt Clean 1-S46
Relief valve spring weaken or broken Replace 1-S46
Excessive oil clearance of crankshaft bearing Replace 1-S71
Excessive oil clearance of crankpin bearing Replace 1-S49, 69
Excessive oil clearance of rocker arm Replace 1-S59
Oil passage clogged Clean –
Different type of oil Use specified type of
oil G-8, 15
Oil pump defective Repair or replace 1-S73
KiSC issued 03, 2007 A