The Light Weight Engine Houtekietstraat 11
B-8540 Deerlijk, Belgium
EFFECTIVITY
page 39
ALL
19-3-2019
Poor oil quality
Change oil. Use prescribed oil.
Oil filter blocked
Change the oil filter.
Defective oil temperature gauge
Replace the oil temperature gauge.
Excessive piston ring gas leakage (blow by)
Major overhaul is necessary.
Bearings defective
If there is metal contamination in the crankcase
sump, a major overhaul is necessary.
The engine does not develop full power
Cause
Action
Ignition trouble
Check all connections.
Too much oil remaining in the crankcase
Check oil return line.
Fuel supply inadequate (less than 2,5 Bar (36
psi))
Check fuel filter.
Incorrect fuel grade
Refuel with prescribed grade fuel.
Intake leaking
Tighten all connections. Replace defective parts.
Low oil pressure
Cause
Action
Insufficient oil in oil tank
Check oil level and fill if necessary
Oil remains in engine and doesn’t circulate
Check oil return line to tank
High oil temperature
See 10.4.
Pressure loss
Check the pressure control valve.
Air in suction line
Vent the oil line.
Defective oil pressure gauge
Replace the oil pressure gauge.
Bearings defective (no oil pressure)
A major overhaul is necessary.
