Rans Inc.
Section 1
Model S-7LS COURIER
General Information
Revision - B May 8, 2007
1- 7
OIL SYSTEM
The engine is equipped with a dry sump forced lubrication system with a main oil pump
with integrated pressure regulator and oil pressure sensor. The oil pump sucks the oil
from the oil tank via the oil cooler and forces it through the oil filter to the points of
lubrication of the engine.
Oil Grade:
SAE Motorcycle oil of registered brand with gear additives.
Use only oil with API classification “SF” or “SG”. Minimum
recommended viscosity 10W-40.
For additional information refer to ROTAX Operators - and
Maintenance Manual.
►
CAUTION:
Do not use aircraft engine oil
Total Oil Capacity:
6.4 liq pt ; minimum 4.2 liq pt.
LIQUID COOLING SYSTEM
The cooling system of the cylinder heads is a closed circuit with an expansion tank.
The coolant flow is forced by a water pump from the radiator to the cylinder heads and to
an expansion tank on top of the engine. The expansion tank is closed by pressure cap.
An overflow bottle receives coolant by temperature rise. The radiator is located at the
bottom of the cowling inside the engine compartment.
Coolant
capacity:
2.5
qt.
For additional information refer to ROTAX- Operators and Maintenance Manual.
