Mastervolt whisper 16 ultra User Manual page 33

PROBLEM
Engine exhaust smokes
Engine starts, but stops after 10
seconds
Engine stops by itself
(Digital Diesel Control will help
to indicate failures)
Sooty, black exhaust.
Loss of power
EN / WHISPER 16 ULTRA Three phase / November 2008 / Copyright © 2008 Mastervolt
CAUSE
• Faint blue smoke - generally the result
of light load
• Heavy blue smoke - caused by
lubricating oil: Overfull oil sump or worn
cylinder bore, stuck broken or worn
piston rings.
• Black smoke –incomplete combustion
caused by: Overload, choked air
cleaner, inlet temperature too high,
unsuitable fuel or water in fuel.
• Protection system stops the engine;
this can be caused by oil pressure
failure, lack of cooling water (exhaust
temperature alarm). Overload, loose
wire or faulty alarm switch. Digital
Diesel Control will help to indicate
failure.
• Overload or short circuit.
• Lack of fuel.
• Oil pressure low. (oil pressure switch
tripped).
• Excessive heat in cooling system
(thermo-switch tripped).
• Lack of cooling water (exhaust switch
tripped).
• Impeller broken.
• Cooling water blocked.
• Water strainer blocked.
• Air or water in the fuel.
• Blocked air or fuel filter.
• Loss of compression by wear out or
damage.
• V-belt broken or loose.
• Thermostat faulty
• Generator is being overloaded. Digital
Diesel Control will indicate "HIGH
CURRENT".
• Insufficient intake air.
• Choked air cleaner.
• Fuel injector faulty.
• Valve clearance incorrect.
• Poor fuel quality.
• Poor quality lubricating oil.
• Continuous running with very low load.
● Wrong measurement. Check if the load is measured correctly. Does the Amp meter show
the correct value? When calculating the load by multiplying voltage and amps this should
be done by using the exact values, taking into account the power factor of the consumers.
When any doubt, measure the power directly with an appropriate instrument.
• Overfull oil sump.
• Choked fuel filter.
• Choked air cleaner
• Exhaust blocked.
• Injector blocked.
• Loss of compression, sticking or
damaged piston ring.
SOLUTION
Increase load.
Check the oil level.
Check the compression.
Check air cleaner
Check the fuel .
Check for overload.
See paragraph 2.5.5. and 3.2.2 for information
on the alarm system. Bypassing the switches
can help to confirm the failure. When there is
no real failure, it could be a faulty alarm switch
Switch off the consumers and test for short
circuit.
Check fuel supply system: fuel lines, pump,
filter, valves, tank level, etc.
Check oil level.
Check engine's oil pressure and have it
repaired by Mastervolt.
Check cooling water system flow: water pump,
inlet water filter, coolant flow.
Repair by Mastervolt service.
Readjust or replace V-belt
Check thermostat and replace
Check electrical load and switch off some
consumers
Check intake air paths and filter, clean and
replace if necessary.
Replace injector.
Readjust valve clearance
Use better quality diesel.
Use better quality oil.
Increase load and have the engine run for a
few hours
Bring the oil to the correct level
Replace the fuel filter.
Check air inlet openings; clean air cleaner.
Check the exhaust system.
Have the injector checked.
Have the compression measured.
Clean or replace the rings.
TROUBLE SHOOTING
33