The Light Weight Engine Houtekietstraat 11
B-8540 Deerlijk, Belgium
EFFECTIVITY
page 27
ALL
19-3-2019
Mode of operation: The oil pump pulls oil through the heat exchanger and the oil filter, oil out of the
reservoir and press the oil through the different channels toward the lubrication spots. A spring loaded
ball valve regulates the oil pressure. The crankcase pressure coming from the movement of the pistons
pushes the oil back in reservoir.
Insufficient oil level may lead to severe damage on the engine. The oil has basically two functions, the
lubrication and the cooling of the motor. Checking the oil level is very easy and made by a visual
inspection of the dip stick on the screw on oil tank cap. The oil tank level and system must be checked
regularly and completely.
For a complete inspection of the oil supply system the upper cowling has to be removed. The system
should be inspected visually for leakage, damage or unusual signs such as fretting. Open the oil
reservoir cap and check the level, also check if sign of water are visible, especially watch out for traces
of foam, which can be an indication that the oil has some water in it.
Check all the hoses and hose clips of the oil supply system for tightness and check that the pipes are
not kinked.
A slightly low oil level does not automatically lead to engine damage, but may lead to higher
temperature as there is not enough oil available for cooling the internal components of the engine. In
case the oil temperature increases slowly but continuously it is often an indication of a low oil level.
If the oil level is much too low in the oil tank, the pipes that feed the oil pump may run dry and the
gear pump may suck air instead of oil. In such case the required oil pressure will not be achieved and
damage to the engine will occur. If this happens, stop immediately the engine, refill the oil to necessary
level and remove the air from the pipe toward the gear pump.
NOTE
Take care not to spill oil on the ground or inside the engine compartment.
Throttle adjustments.
Adjust idle speed to 800 RPM using the idle screw on the throttle.
