The Light Weight Engine Houtekietstraat 11
B-8540 Deerlijk, Belgium
EFFECTIVITY
page 29
ALL
19-3-2019
Troubles in the fuel supply may lead to poor performance, uneven running, high fuel consumption,
and even to a total engine failure.
As prevention the fuel supply system must be inspected regularly for leakage, damage or abnormal
sign of use. It is also very important to ensure that no fuel pipes are kinked or porous and that all hose
clips are tight. Further it is important that all electric connections correctly and firmly terminated.
If a fuel pressure indicator is installed, it may be used to recognize irregularities of the fuel system or
of the fuel pressure.
NOTE
Strong indicators of potential problems or failures within the fuel supply system are unsteady or
constantly low fuel pressure. Blocked filters, kinked pipes or a damaged fuel pump could be the source
of these problems.
Too high fuel pressure is an indication of a damaged regulating valve or a blocked back flow pipe.
If any of these signs are recognized it is mandatory not to take off and if in flight to land as soon as
possible on the nearest airfield.
Defective switches or fuses within the fuel supply system have to be replaced before next flight.
Important Information about fuels and lubricants :
Fuel :
Automobile fuel, unleaded premium
UL91 95 Octane (RON) minimum AVGAS.
Fuel pressure :
2,5 BAR (36psi)
Oil type :
Fully synthetic branded automotive oil to API SJ standard as a
minimum. Engine warranty is void if oil is used that is below
this standard.
Oil volume:
2,5 Litres (4 ½ pints)
Oil level is between
Ensure between max. & min. On standard oil tank the upper
limit is on the upper oil tank swage line and lower level
25mm (1”) Below
Oil pressure:
1,5 Bar (22psi) @ 2000 RPM
0,8 Bar (11psi)@ idle RPM
Oil temperature (readings off of the feed line into engine):
Min. 50 Deg.C (122 Deg.F)
Max. 110 Deg.C (230 Deg. F)
Optimum oil temperature range :
