Troubleshooting - wsm L3301 Workshop Manual

L3301, L3901, L4701, WSM

1. TROUBLESHOOTING

Symptom
Engine Does Not
Start
Starter Does Not
Operate
Engine Revolution Is
Not Smooth
Either White or Blue
Exhaust Gas Is
Observed
Probable Cause
No fuel
Air in the fuel system
Water in the fuel system
Fuel pipe clogged
Fuel filter clogged
Excessively high viscosity of fuel at low
temperature
Fuel with low cetane number
Fuel leak due to loose injection pipe retaining nut Tighten nut
Injector stuck or clogged
Fuel supply pump malfunctioning
Seizure of crankshaft, camshaft, piston or
bearing
Compression leak from cylinder
Improper valve timing
Piston ring and cylinder worn out
Incorrect valve clearance
Battery discharged
Starter malfunctioning
Key switch malfunctioning
Safety switches improperly adjusted or damaged
Starter relay damaged
Wiring disconnected
Fuel filter clogged or dirty
Air cleaner clogged
Fuel leak due to loose injection pipe retaining nut Tighten nut
Fuel supply pump malfunctioning
Injector stuck or clogged
Excessive engine oil
Piston ring and cylinder worn or stuck
Fill fuel
Bleed
Change fuel and
repair or replace fuel
system
Clean
Replace
Use the specified fuel
Use the specified fuel
Replace
Replace
Repair or replace
Replace head gasket,
tighten cylinder head
screw, glow plug and
injector
Correct or replace
timing gear
Replace
Adjust
Charge
Repair or replace
Repair or replace
Adjust or replace
Replace
Connect
Change
Clean or change
Replace
Replace
Reduce to the
specified level
Repair or replace
1-S1
ENGINE
Reference
Solution
Page
G-21, G-50
G-46, G-74
–
–
G-39, G-66
G-10, G-11
G-10, G-11
1-S41
1-S44
1-S49
1-S52,
1-S55,
1-S61
1-S43,
1-S44,
1-S46
1-S52,
1-S52
1-S56,
1-S79
1-S12
G-33, G-61
9-S29,
9-S59
9-S26
9-S27
9-S30
–
G-39, G-66
G-29, G-58
1-S41
1-S49
1-S44
G-36, G-64
1-S56,
1-S79
KiSC issued 09, 2016 A