Troubleshooting; Engine Does Not Start; Engine Revolution Is Not Smooth; Either White Or Blue Exhaust Gas Is Observed - Kubota B2410 Workshop Manual

82410 • 82710 • 82910 WSM, 12271
TROUBLESHOOTING
1 ENGINE
Symptom Probable Cause Solution
Reference
Page
Engine Does Not
• No fuel
Replenish fuel
-
Start • Air in the fuel system Bleed G-28
• Water in the fuel system
Change fuel and -
repair or replace fuel
system
• Fuel pipe clogged
Clean -
• Fuel filter clogged
Change G-20
• Excessively high viscosity of fuel or engine oil Use specified fuel or G-8
at low temperature
engine oil
• Fuel with low cetane number Use specified fuel G-8
• Fuel leak due to loose injection pipe retaining Tighten retaining nut 1-818
nut
• Incorrect injection timing
Adjust 1-853
• Fuel camshaft worn
Replace 1-824
• Injection nozzle clogged
Clean
1-855
• Injection pump malfunctioning
Repair or replace
1-824
• Seizure of crankshaft, camshaft, piston,
Repair or replace
1-828,831
cylinder or bearing
• Compression leak from cylinder Replace head 1-820
gasket, tighten
cylinder head screw,
glow plug and nozzle
holder
• Improper valve timing
Correct or replace
1-826
timing gear
• Piston ring and cylinder worn Replace 1-829
• Excessive valve clearance
Adjust
1-817
• Battery discharged
Charge 9-85
(Starter Does Not • Starter malfunctioning Repair or replace 9-S11
Run)
• Main switch malfunctioning
Repair or replace 9-87
• The movement of poppet (safety switch of
Range gear shift
9-M7
range gear shift) is heavy (In winter, oil lever is moved
viscosity increase) (B271 0 Affected Serial No.: several times
below 15496)
• Safety switches malfunctioning Adjust or replace 9-810
• Wiring disconnected
Connect -
Engine Revolution Is
• Fuel filter clogged or dirty
Change
G-20
Not Smooth
• Air cleaner clogged Clean or replace G-20
• Fuel leak due to loose injection pipe retaining Tighten retaining nut 1-818
nut
• Injection pump malfunctioning Repair or replace
1-824
• Incorrect nozzle injection pressure Adjust
1-855
• Injection nozzle stuck or clogged
Repair or replace 1-856
• Governor malfunctioning Repair 1-826
Either White or Blue • Excessive engine oil Reduce to specified
G-12
Exhaust Gas Is level
Observed
• Piston ring and cylinder worn or stuck
Repair or replace 1-829
• Incorrect injection timing
Adjust 1-853
• Deficient compression
Adjust top clearance 1-816
12271810010
1-81