Nanni N4.40, Workshop Manual

Page: 75 / 175

ENGINE
03-M-E3B, 03-M-DI-E3B, 03-M-E3BG, WSM
1-S5
The lubricant oil
consumption is too
much The gap of the piston ring points to the same
direction Move the ring gap
direction 1-S65,
1-S66
The oil ring is worn out or cannot move Replace 1-S67,
1-S68,
1-S90,
1-S91
The piston ring groove is worn out Replace the piston 1-S67,
1-S68,
1-S91
The valve stem and valve guide are worn out Replace 1-S53,
1-S77
The crankshaft bearing and the crankpin bearing
is worn out Replace 1-S65,
1-S66,
1-S71,
1-S93,
1-S94,
1-S95,
There is an oil leakage because of the seal or
packing is defective Replace –
The fuel is mixed into
the lubricant oil The plunger of the injection pump is worn out Repair or replace 1-S31,
1-S32,
1-S33,
1-S54,
1-S55,
1-S56
The injection nozzle is defective Repair or replace the
nozzle 1-S34,
1-S35,
1-S36,
1-S49
The injection pump is defective Replace 1-S54,
1-S55,
1-S56
Water is mixed into
the lubricant oil The head gasket is defective Replace 1-S51
The cylinder block or cylinder head is defective Replace 1-S51,
1-S75
Symptom Probable Cause Solution
Reference
Page
KiSC issued 06, 2009 A