Whisper Power ELITE GV 2 User Manual page 23

PROBLEM
Starter is turning engine smoothly,
but engine runs irregularly after
starting
Engine runs irregularly
Engine speed drops
Engine does not stop on command
Engine exhaust smokes
Elite GV 2, 3, 3+, 8, 10 and Elite GV 15 — June 2020 — EN
CAUSE
• Wrong valve clearance
• Low compression because of dirty valves
• Loss of compression by wear out or
damage
• Faulty glow plug
• Unsuitable or contaminated fuel
• Lack of fuel
• Air in the fuel pipes
• Choked fuel filter
• Disturbances on the electrical system/
user side
• Faulty fuel lift pump
• Choked air filter
• Lack of air
• Choked exhaust system, exhaust blocked
• Faulty actuator
• Blocked injector
• Wrong valve clearance
• Lack of fuel
• Genverter overloaded
• Fuel problem
• Too much oil.
• Lack of intake air.
• Choked exhaust system, exhaust blocked.
• Faulty actuator
• Defective alternator (windings or other)
• Damaged engine
• Fuel solenoid is not switching off
• Loss of control
• Faint blue smoke - generally the result of
light load
• Heavy blue smoke - caused by lubricating
oil: oil level too high, worn cylinder, stuck,
broken or worn piston rings.
• When the engine RPM is ramping up to
react at a load step some smoke may be
unavoidable.
• Wrong setting of minimum RPM.
• Sooty
black smoke
combustion caused by: overload, choked
air filter, air inlet temperature too high,
unsuitable fuel or water in fuel.
• Valve clearance incorrect.
• Continuous running with very low load.
SOLUTION
Adjust valve clearance
Contact WhisperPower service department for
advice
Repair by WhisperPower service
Replace faulty glow plug. Consider replacing both or
all three taking into account the number of starts
completed.
Fill up with fuel or replace by better quality
Bleed air from fuel system (refer to maintenance
section)
Check fuel filter and replace if necessary
Check if electrical load is fluctuating
Check and repair or replace
Check the air intake
Check the exhaust piping, inspect inside of manifold
Replace faulty parts. Contact WhisperPower service
department for advice.
Have the injector tested and cleaned if necessary
Adjust valve clearance
Check fuel supply system: fuel pump and filter
Reduce the electrical load (switch off some
consumers)
Check fuel supply and clean fuel filter
Drain oil to proper level
Check air intake; clean air filter
Check the exhaust piping; inspect inside of manifold
Contact WhisperPower service department for
advice
Genverter must be sent to manufacturer for repair
of damaged bearing or winding
Repair by WhisperPower service
Faulty Digital Diesel Control unit. Stop the engine
manually using the stop handle.
Check wire connections to stop solenoid. Check
solenoid valve function. Replace if necessary.
Increase load.
Check the oil level
Check the compression
No action required.
Readjust minimum rpm setting
Check the fuel.
–incomplete
Check for overload
Check the air filter
Adjust minimal RPM setting
Readjust valve clearance
Increase load and have the engine run for a few
hours
TROUBLESHOOTING
23