Mastervolt whisper 16 ultra User Manual page 32

TROUBLE SHOOTING
PROBLEM
Starter is turning engine
smoothly, but engine fails to
start
Engine runs irregularly.
Engine speed drops
32
CAUSE
• Wiring control system faulty
• Starter broken
• To thick engine lubricating oil.
• Out of fuel or faulty fuel, water in the
fuel.
• Fuel solenoid is not opening (no "click"
can be heard).
• Fuel lift pump is not working.
• Fuel filter is blocked.
• Air in fuel lines.
• Wrong valve clearance.
• Low compression because of dirty
valves.
• Blocked injector.
• Loss of compression by wear out or
damage
• Unsuitable contaminated fuel
• Lack of fuel.
• Choked fuel filter.
• Disturbances on the electrical system/
user side.
• Faulty fuel lift pump.
• Choked air filter element.
• Lack of air.
• Choked exhaust system, exhaust
blocked,.
• Air in the fuel pipes
• Faulty electronic governor (only if
applied)
• Blocked injector.
• Wrong valve clearance.
• Temporarily hunting (this will disappear when engine has run in).
• Ongoing hunting caused by faulty
electronic governor (only if applied)
• Faulty electronic governor (only if
applied)
• Too much oil.
• Lack of fuel.
• Lack of intake air.
• Choked exhaust system, exhaust
blocked.
• Generator overloaded
• Defective generator (windings,
bearings or other)
• Damaged engine
Copyright © 2008 Mastervolt / October 2008 / Whisper 16 Ultra - Three phase for mobile applications/ EN
SOLUTION
During the normal starting process, the battery
voltage drops to 11V (with a fully charged
battery). If the voltage does not drop during
starting, the electrical connection is faulty. If the
battery voltage drops lower than 11V, then the
battery has been discharged too deep.
Repair the starter motor
Change oil for a lower viscosity.
Fill up with fuel or replace with better quality.
Check wire connections and circuitry to solenoid.
(Refer to DC wiring diagram)
Check fuel filter and fuel lift pump: clean or
replace if necessary.
Bleed air from fuel system (refer to maintenance
section).
Adjust valve clearance,
Clean valves. Take off the injection bent and
inspect the outlet port. When little rust in the port
clean the valve by taking off the valve spring and
rotate until rust is removed. When the outlet port
is strongly affected by rust, the exhaust system is
not properly installed (refer to paragraph 5.4.3).
Contact Mastervolt service department for advice.
Have the injector tested and cleaned if necessary.
Repair by Mastervolt service
Fill up with fuel or replace by better quality.
Check fuel filter and fuel lift pump: clean or
replace if necessary.
Check if electrical load is fluctuating
Check and repair
Check the air intake
Check the exhaust piping; inspect manifold inside
Bleed air from fuel system (refer to maintenance
section).
Replace faulty parts.
Have the injector tested and cleaned if necessary.
Adjust valve clearance.
Replace faulty parts.
Replace faulty parts.
Drain oil to proper level
Check fuel supply system: fuel pump and filter.
Check air intake.
Check the exhaust piping; inspect manifold inside
Reduce the electrical load (switch off some
consumers).
Generator must be sent to manufacturer for repair
of damaged bearing or winding.
Repair by Mastervolt service