Nanni 4.195HE, Workshop Manual

Page: 23 / 125

S-6
03-M Series, WSM
DIESEL ENGINE
W1014322
Symptom Probable Cause Solution
Reference
Page
Either White or Blue
Exhaust Gas Is
Observed Excessive engine oil Reduce to specified
level S-18
Piston ring and liner worn or stuck Repair or replace S-50, 64,
65, 80,
81, 88
Incorrect injection timing Adjust S-95
Either Black or Dark
Gray Exhaust Gas Is
Observed Overload Lessen the load –
Low grade fuel used Use specified fuel –
Fuel filter clogged Replace S-28
Air cleaner clogged Clean or replace S-22, 27,
33
Deficient nozzle injection Repair or replace
nozzle S-54, 97
Deficient Output Incorrect injection timing Adjust S-95
Engine’s moving parts seem to be seizing Repair or replace –
Injection pump malfunctioning Repair or replace S-57, 96
Deficient nozzle injection Repair or replace
nozzle S-54, 97
Compression leak Check the
compression
pressure and repair S-50
Air cleaner dirty or clogged Clean or replace S-22, 27,
33
Excessive Lubricant
Oil Consumption Piston ring’s gap facing the same direction Shift ring gap
direction S-64
Oil ring worn or stuck Replace S-65, 80,
81
Piston ring groove worn Replace piston S-65, 81
Valve stem and valve guide worn Replace S-56, 70,
71
Crankshaft bearing, and crank pin bearing worn Replace –
Oil leaking due to defective seals or packing Replace –
Fuel Mixed into
Lubricant Oil Injection pump’s plunger worn Repair or replace S-57, 96
Deficient nozzle injection Repair or replace
nozzle S-54, 97,
98
Injection pump broken Replace S-57
Water Mixed into
Lubricant Oil Head gasket defective Replace S-55
Cylinder block or cylinder head flawed Replace S-55, 69
KiSC issued 08, 2012 A