VM Motori MR 700 Instruction Manual page 110

Problem
The engine stops after.
ignition
The engine does not.
reach the operating.
speed
Emission of black.
smoke from the exhaust.
pipe
Light emission of white.
smoke from the exhaust.
pipe
Abundant emission of.
white smoke from the.
exhaust pipe
Ed. 3 - 2012_11
Cause
Presence of air in the fuel supply
circuit..
Clogged fuel filter
The injection pump is set incor-
rectly or is faulty
The electric cables are discon-
nected or they do not guarantee
continuity
Clogged fuel filter
Presence of air in the fuel supply
circuit..
The injection pump is set incor-
rectly or is faulty
Dirty or faulty injectors
Clogged air filter
Overload
Dirty or faulty injectors
The injection pump is set incor-
rectly or is faulty
Faulty turbocharging turbine
Oil level too high
Worn segments
Worn valve guideways
Burnt gasket head
Engine overheating. Clogged
coolers
Clogged seawater filter
Worn seawater pump impeller
Broken or worn belt
Failure of water temperature
sensor
48
Remedy
Carry out bleeding (see "Fuel
supply circuit bleeding")
Replace filter (see "Inlet air filter
replace-ment")
Adjust the pump or replace it Ap-
ply to an authorised workshop
Check the electric connections
Replace filter (see "Fuel filter
replacement")
Carry out bleeding (see "Fuel
supply circuit bleeding")
Adjust the pump or replace it Ap-
ply to an authorised workshop
Clean or replace injectors Apply
to an authorised workshop
Clean or replace the filter (see
"Inlet air filter replacement")
Reduce the load
Clean or replace injectors Apply
to an authorised workshop
Adjust the pump or replace it Ap-
ply to an authorised workshop
Replace the turbine Apply to an
authorised workshop
Adjust the oil level
Check compression Apply to an
authorised workshop
Check wear Apply to an autho-
rised workshop
Apply to an authorised workshop
Clean the coolers. Apply to an
authorised workshop
Clean or replace the filter
Replace the impeller. Apply to an
authorised workshop
Replace the belt (see "Belt
replacement")
Replace the sensor. Apply to an
authorised workshop
MR 700
English